Qashqai J11. Engine control system (K9K) - part 1
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CONTENTS
ENGINE CONTROL SYSTEM (K9K)
K9K
PRECAUTION ...............................................
PRECAUTIONS ...................................................
Precaution for Procedure without Cowl Top Cover
......
Precautions for Removing Battery Terminal .............
Precaution for Stop/Start System Service ...............
On Board Diagnostic (OBD) System of Engine .......
SYSTEM DESCRIPTION .............................
COMPONENT PARTS .......................................
Component Parts Location ......................................
ECM ........................................................................
Camshaft Position Sensor .......................................
Crankshaft Position Sensor .....................................
Mass Air Flow Sensor .............................................
Intake Air Temperature Sensor 1 ............................
Turbocharger Boost Sensor ....................................
Intake Air Temperature Sensor 2 ............................
Engine Coolant Temperature Sensor ......................
Fuel Injector ............................................................
FPCM (Fuel Pump Control Module) ........................
High Pressure Fuel Pump .......................................
Fuel Rail Pressure Sensor ......................................
Fuel Temperature Sensor .......................................
Fuel Pressure Sensor .............................................
Fuel Pump ...............................................................
Turbocharger Boost Control Solenoid Valve ...........
High Pressure EGR Volume Control Valve .............
Low Pressure EGR Volume Control Valve ..............
Low Pressure EGR Temperature Sensor ...............
Electric Throttle Control Actuator ............................
Exhaust Electric Throttle Control Actuator ..............
DPF (Diesel Particulate Filter) .................................
Exhaust Gas Pressure Sensor ................................
DPF Differential Pressure Sensor ...........................
Exhaust Gas Temperature Sensor 1 .......................
Exhaust Gas Temperature Sensor 2 .......................
Glow Control Unit ....................................................
Glow Plug ................................................................
Glow Indicator Lamp ................................................
Cooling Fan .............................................................
Cooling Fan Resistor ...............................................
Thermoplunger Unit .................................................
Thermoplunger Control Unit ....................................
Accelerator Pedal Position Sensor ..........................
Refrigerant Pressure Sensor ...................................
Stop Lamp Switch ....................................................
ASCD Steering Switch .............................................
Malfunction Indicator Lamp .....................................
Information Display ..................................................
DC/DC Converter ....................................................
Engine Restart Relay ...............................................
Engine Restart Bypass Control Relay .....................
Engine Restart Bypass Relay ..................................
Hood Switch ............................................................
Stop/Start Indicator Lamp ........................................
Stop/Start OFF Switch .............................................
Fuel Heater With Water In Fuel Level Sensor .........
Reverse/Neutral Position Switch .............................
SYSTEM ............................................................
ENGINE CONTROL SYSTEM ...................................
ENGINE CONTROL SYSTEM : System Diagram ....
ENGINE SPEED CONTROL ......................................
ENGINE SPEED CONTROL : System Description
....
ECK-2
TURBOCHARGER BOOST CONTROL ...................
EGR SYSTEM ...........................................................
EGR SYSTEM : System Description ......................
THROTTLE CONTROL .............................................
THROTTLE CONTROL : System Description ........
SWIRL CONTROL SYSTEM .....................................
SWIRL CONTROL SYSTEM : System Description
...
ENGINE TORQUE CONTROL ..................................
COMBUSTION CONTROL .......................................
COMBUSTION CONTROL : System Description ...
AFTER TREATMENT SYSTEM ................................
COOLING FAN CONTROL .......................................
COOLING FAN CONTROL : System Description ...
THERMOSTAT CONTROL .......................................
THERMOSTAT CONTROL : System Description ...
GLOW CONTROL .....................................................
GLOW CONTROL : System Description ................
OIL CONTROL SYSTEM ..........................................
OIL CONTROL SYSTEM : System Description ......
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description .......................................
SPEED LIMITER .......................................................
SPEED LIMITER : System Description ..................
GEAR SHIFT INDICATOR SYSTEM ........................
STOP/START SYSTEM ............................................
STOP/START SYSTEM : System Description .......
ENERGY MANAGEMENT SYSTEM .........................
CAN COMMUNICATION ...........................................
CAN COMMUNICATION : System Description ......
OPERATION ......................................................
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : Switch Name and Function ............................
SPEED LIMITER .......................................................
SPEED LIMITER : Switch Name and Function .......
OIL CONTROL SYSTEM ..........................................
STOP/START SYSTEM ............................................
HANDLING PRECAUTION ...............................
Precaution for Stop/Start System ............................
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....
Diagnosis Description .............................................
DIAGNOSIS SYSTEM (ECM) ............................
CONSULT Function ................................................
ECU DIAGNOSIS INFORMATION .............
ECM ...................................................................
Reference Value .....................................................
Fail-safe ..................................................................
DTC Inspection Priority Chart ...............................
DTC Index ...............................................................
DC/DC CONVERTER .......................................
Reference Value ...................................................
WIRING DIAGRAM ...................................
ENGINE CONTROL SYSTEM ..........................
Wiring Diagram .....................................................
BASIC INSPECTION .................................
BASIC INSPECTION ........................................
Work Procedure ....................................................
DIAGNOSIS AND REPAIR WORKFLOW ........
Work Flow .............................................................
Diagnostic Work Sheet .........................................
SERVICE AFTER REPLACING OR REMOV-
ING ENGINE PARTS ........................................
Special Repair Requirement List ..........................
Description ............................................................
Work Procedure ....................................................
INJECTOR ADJUSTMENT VALUE REGIS-
TRATION ..........................................................
Description ............................................................
Work Procedure ....................................................
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Description ............................................................
Work Procedure ....................................................
EXHAUST THROTTLE VALVE POSITION
LEARNING .......................................................
Description ............................................................
Work Procedure ....................................................
EGR VOLUME CONTROL VALVE POSITION
LEARNING .......................................................
Description ............................................................
Work Procedure ....................................................
LOW PRESSURE EGR VOLUME CONTROL
VALVE POSITION LEARNING ........................
Description ............................................................
Work Procedure ....................................................
DIESEL PARTICULATE FILTER DATA
CLEAR ..............................................................
Description ............................................................
Work Procedure ....................................................
MASS AIR FLOW SENSOR LEARNING VAL-
UE CLEAR ........................................................
Description ............................................................
Work Procedure ....................................................
TURBOCHARGER LEARNING VALUE
CLEAR ..............................................................
Description ............................................................
Work Procedure ....................................................
TURBOCHARGER BOOST SENSOR .............
Description ............................................................
Work Procedure ....................................................
DPF DIFFERENTIAL PRESSURE SENSOR
LEARNING VALUE CLEAR .............................
Description ............................................................
Work Procedure ....................................................
HIGH PRESSURE FUEL PUMP TOTAL
STARTS COUNTER RESET ............................
Description ............................................................
Special Repair Requirement .................................
STARTER OPERATION COUNTER CLEAR ..
Description ............................................................
Work Procedure ....................................................
ENGINE OIL DATA RESET .............................
Description ............................................................
Work Procedure ....................................................
VIN REGISTRATION ........................................
Description ............................................................
Work Procedure ....................................................
SERVICE REGENERATION ............................
Description ............................................................
Work Procedure .....................................................
ACCELERATOR PEDAL ................................
Work Procedure .....................................................
FUEL PRESSURE CHECK .............................
Work Procedure .....................................................
INJECTOR CHECK .........................................
Work Procedure (Fuel Injectors Leak Check) ........
Work Procedure (Fuel Injection Quantity Check) ..
DTC/CIRCUIT DIAGNOSIS .......................
POWER SUPPLY AND GROUND CIRCUIT ..
ECM ..........................................................................
ECM : Diagnosis Procedure ..................................
U0019 LIN BUS OFF ERROR .........................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
U0111 LIN COMMUNICATION .......................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
U0121 CAN COMMUNICATION .....................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
U0298 COMMUNICATION WITH DC/DC
CONVERTER CONTROL UNIT ......................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
U0299 LOST COMMUNICATION (DC/DC
CONVERTER) .................................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
U0415 CAN COMMUNICATION .....................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
B1900 DC/DC CONVERTER ..........................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
B1901 DC/DC CONVERTER ..........................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
B1902 DC/DC CONVERTER ..........................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
ECK-4
B1903 DC/DC CONVERTER ...........................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
B1904 DC/DC CONVERTER ...........................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0001 FUEL PUMP .........................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0002 FUEL PRESSURE ................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (Fuel Injector) ...................
P0016 CKP - CMP CORRELATION ................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0045 TC BOOST CONTROL SOLENOID
VALVE .............................................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0087 FUEL SYSTEM .....................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (Low Pressure Fuel Pump)
..
P0089 FUEL PRESSURE ................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (Fuel Injector) ...................
P0095 IAT SENSOR 2 .....................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0100 MAF SENSOR ......................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (Mass Air Flow Sensor) ....
P0101 MAF SENSOR ......................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0105 TC BOOST SENSOR ............................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0110 IAT SENSOR .........................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0115 ECT SENSOR .......................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0120 TP SENSOR ..........................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
Component Inspection (Throttle Position Sensor) .
P0180 FUEL TEMPERATURE SENSOR .........
DTC Logic .............................................................
Diagnosis Procedure .............................................
P018C FUEL PRESSURE SENSOR ................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0190 FRP SENSOR .......................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0200 FUEL INJECTOR ..................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
Component Inspection (Fuel Injector) ...................
DTC Logic .............................................................
Diagnosis Procedure .............................................
Component Inspection (Fuel Injector) ...................
P0217 ENGINE OVER TEMPERATURE .........
DTC Logic .............................................................
Component Function Check .................................
Diagnosis Procedure .............................................
P0225 APP SENSOR .......................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
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P0226 APP SENSOR .......................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P025A FUEL PUMP .........................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P025B FUEL PUMP CONTROL MODULE
CONTROL ........................................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
Component Inspection (Fuel Injector) ...................
P0335 CKP SENSOR .......................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0340 CMP SENSOR ......................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0380 GLOW CONTROL SYSTEM .................
DTC Logic .............................................................
Diagnosis Procedure .............................................
Component Inspection (Glow Plug) ......................
P0402 EGR VOLUME CONTROL VALVE .......
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0403 EGR VOLUME CONTROL VALVE .......
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0409 EGR VOLUME CONTROL VALVE PO-
SITION SENSOR ..............................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P0470 EXHAUST GAS PRESSURE SENSOR
DTC Logic ..............................................................
Diagnosis Procedure .............................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0487 EGR VOLUME CONTROL VALVE .....
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0488 EGR SYSTEM ......................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0504 STOP LAMP SWITCH .........................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0525 ASCD SYSTEM ...................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0530 REFRIGERANT PRESSURE SENSOR
.
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0544 EGT SENSOR 1 ...................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0560 BATTERY VOLTAGE ..........................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0564 ASCD STEERING SWITCH .................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (ASCD Steering Switch) ...
P0574 VSS ......................................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0575 ASCD STEERING SWITCH .................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
ECK-6
Component Inspection (ASCD Steering Switch) ...
P0606 ECM ......................................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P060A ECM .....................................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P060B ECM .....................................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P061A ECM .....................................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0627 FUEL PUMP .........................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P062B ECM .....................................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0638 ELECTRIC THROTTLE CONTROL
ACTUATOR FUNCTION ..................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0641 SENSOR POWER SUPPLY .................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0651 SENSOR POWER SUPPLY .................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0657 ECM RELAY .........................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0697 SENSOR POWER SUPPLY .................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P0806 CLUTCH SWITCH ................................
Description .............................................................
DTC Logic ..............................................................
Component Function Check ..................................
Diagnosis Procedure .............................................
Component Inspection (Clutch Interlock Switch) ...
P0833 CPP SWITCH .......................................
DTC Logic ..............................................................
Component Function Check ..................................
Diagnosis Procedure .............................................
P1453 DIESEL PARTICULATE FILTER
PRESSURE SENSOR ......................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1480 EXHAUST ELECTRIC THROTTLE
CONTROL ACTUATOR ...................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1481 EXHAUST ELECTRIC THROTTLE
CONTROL ACTUATOR ...................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1482 EXHAUST ELECTRIC THROTTLE
CONTROL ACTUATOR ...................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1483 EXHAUST ELECTRIC THROTTLE
CONTROL ACTUATOR ...................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1484 LOW PRESSURE EGR VOLUME
CONTROL VALVE ...........................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1485 LOW PRESSURE EGR VOLUME
CONTROL VALVE ...........................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1486 LOW PRESSURE EGR VOLUME
CONTROL VALVE POSITION SENSOR .........
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1487 LOW PRESSURE EGR VOLUME
CONTROL VALVE ...........................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
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P1488 LOW PRESSURE EGR VOLUME
CONTROL VALVE ...........................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1503 ACTIVE GRILLE SHUTTER .................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1512 STARTER MOTOR ...............................
Description ............................................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
Description ............................................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1525 ASCD SYSTEM .....................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1544 EGT SENSOR 2 ....................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1546 EXHAUST GAS TEMPERATURE ........
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1589 NEUTRAL SWITCH ..............................
DTC Logic .............................................................
Component Function Check ..................................
Diagnosis Procedure .............................................
P158A CLUTCH SWITCH ................................
DTC Logic .............................................................
Component Function Check ..................................
Diagnosis Procedure .............................................
P160C ECM ......................................................
DTC Logic .............................................................
Diagnosis Procedure .............................................
P1641 THERMOPLUNGER CONTROL UNIT .
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (Thermoplunger) ...............
P1642 THERMOPLUNGER CONTROL UNIT .
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (Thermoplunger) ...............
P1643 THERMOPLUNGER CONTROL UNIT .
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (Thermoplunger) ...............
P1650 STARTER MOTOR RELAY 2 ..............
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection ...........................................
P1655 ENGINE RESTART BYPASS RELAY .
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P1656 ENGINE RESTART BYPASS RELAY .
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P1675 ENGINE COOLANT TEMPERATURE .
DTC Logic ..............................................................
Component Function Check ..................................
Diagnosis Procedure .............................................
P2002 DIESEL PARTICULATE FILTER ........
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection ...........................................
P2080 EGT SENSOR 1 ...................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection ...........................................
P2119 ELECTRIC THROTTLE CONTROL
FUNCTION ......................................................
DTC Logic ..............................................................
ECK-8
Diagnosis Procedure .............................................
P2120 APP SENSOR ......................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P2226 BARO SENSOR ...................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P2263 TC SYSTEM .........................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P2264 WATER IN FUEL SENSOR ..................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P2452 DIESEL PARTICULATE FILTER
PRESSURE SENSOR .....................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P2504 CHARGING SYSTEM VOLTAGE ........
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P253F ENGINE OIL DETERIORATED ............
DTC Logic ..............................................................
Diagnosis Procedure .............................................
P2688 FUEL HEATER .....................................
DTC Logic ..............................................................
Diagnosis Procedure .............................................
Component Inspection (Fuel Heater Relay) ..........
LOW PRESSURE FUEL PUMP ......................
Component Function Check ..................................
Diagnosis Procedure .............................................
Component Inspection (Low Pressure Fuel Pump)
..
STOP LAMP SWITCH .....................................
Component Function Check ..................................
Diagnosis Procedure .............................................
Component Inspection ...........................................
HOOD SWITCH ...............................................
Component Function Check ..................................
Diagnosis Procedure .............................................
Component Inspection ...........................................
STOP/START OFF SWITCH ...........................
Component Function Check .................................
Diagnosis Procedure .............................................
Component Inspection ..........................................
SYMPTOM DIAGNOSIS ...........................
ENGINE CONTROL SYSTEM SYMPTOMS ....
Symptom Table .....................................................
STOP/START SYSTEM ....................................
Diagnosis Procedure .............................................
STOP/START SYSTEM NOT ACTIVATED .....
Diagnosis Procedure .............................................
PERIODIC MAINTENANCE ......................
IDLE SPEED .....................................................
Inspection ..............................................................
REMOVAL AND INSTALLATION .............
VACUUM LINES ...............................................
Vacuum Layout .....................................................
ECM ..................................................................
Exploded View ......................................................
Removal and Installation .......................................
GLOW CONTROL UNIT ...................................
Exploded View ......................................................
Removal and Installation .......................................
THERMOPLUNGER CONTROL UNIT .............
Exploded View ......................................................
Removal and Installation .......................................
DC/DC CONVERTER .......................................
Exploded View ......................................................
Removal and Installation .......................................
ENGINE RESTART BYPASS RELAY .............
Exploded View ......................................................
Removal and Installation .......................................
FUEL PUMP CONTROL MODULE (FPCM) ....
Exploded View ......................................................
Removal and Installation .......................................
SERVICE DATA AND SPECIFICATIONS
(SDS) .........................................................
Idle Speed .............................................................
PRECAUTIONS
ECK-9
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000010505754
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.
WARNING:
Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution for Procedure without Cowl Top Cover
INFOID:0000000010289577
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.
Precautions for Removing Battery Terminal
INFOID:0000000010505757
• With the adoption of Auto ACC function, ACC power is automatically supplied by operating the intelligent key
or remote keyless entry or by opening/closing the driver side door. In addition, ACC power is supplied even
after the ignition switch is turned to the OFF position, i.e. ACC power is supplied for a certain fixed time.
PIIB3706J
ECK-10
< PRECAUTION >
[K9K]
PRECAUTIONS
• When disconnecting the 12V battery terminal, turn off the ACC
power before disconnecting the 12V battery terminal, observing
“How to disconnect 12V battery terminal” described below.
NOTE:
Some ECUs operate for a certain fixed time even after ignition
switch is turned OFF and ignition power supply is stopped. If the
battery terminal is disconnected before ECU stops, accidental DTC
detection or ECU data damage may occur.
• For vehicles with the 2-batteries, be sure to connect the main bat-
tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be detected.
• After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.
NOTE:
The removal of 12V battery may cause a DTC detection error.
HOW TO DISCONNECT 12V BATTERY TERMINAL
Disconnect 12V battery terminal according to Instruction 1 or Instruction 2 described below.
For vehicles parked by ignition switch OFF, refer to Instruction 2.
INSTRUCTION 1
1.
Open the hood.
2.
Turn key switch to the OFF position with the driver side door opened.
3.
Get out of the vehicle and close the driver side door.
4.
Wait at least 3 minutes. For vehicle with the engine listed below, remove the battery terminal after a lapse
of the specified time.
CAUTION:
While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.
5.
Remove 12V battery terminal.
CAUTION:
After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.
INSTRUCTION 2 (FOR VEHICLES PARKED BY IGNITION SWITCH OFF)
1.
Unlock the door with intelligent key or remote keyless entry.
NOTE:
At this moment, ACC power is supplied.
2.
Open the driver side door.
3.
Open the hood.
4.
Close the driver side door.
5.
Wait at least 3 minutes.
CAUTION:
While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.
6.
Remove 12V battery terminal.
CAUTION:
After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.
Precaution for Stop/Start System Service
INFOID:0000000010289579
CAUTION:
SEF289H
D4D engine
: 20 minutes
HRA2DDT
: 12 minutes
K9K engine
: 4 minutes
M9R engine
: 4 minutes
R9M engine
: 4 minutes
V9X engine
: 4 minutes
PRECAUTIONS
ECK-11
< PRECAUTION >
[K9K]
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When performing an inspection and its related work with the engine at idle, always turn the stop/start
OFF switch ON or open the hood to release the stop/start system.
On Board Diagnostic (OBD) System of Engine
INFOID:0000000010289581
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MI to light up.
• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to
.
• Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MI to light up due to the short circuit.
• Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of the fuel injection system, etc.
• Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM before
returning the vehicle to the customer.
ECK-12
< SYSTEM DESCRIPTION >
[K9K]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000010289582
ENGINE ROOM COMPARTMENT
Battery mounting bracket assembly
JSBIA4845ZZ
No.
Component parts
Function
1
IPDM E/R
IPDM E/R activates the internal control circuit to perform the
relay ON-OFF control according to the input signals from vari-
ous sensors and the request signals received from control
units via CAN communication.
Refer to
PCS-5, "Component Parts Location"
for detailed in-
stallation location.
2
Mass air flow (MAF) sensor (with intake air temperature sen-
sor 1)
•
ECK-16, "Mass Air Flow Sensor"
•
ECK-16, "Intake Air Temperature Sensor 1"
3
Fuel heater and water in fuel level sensor
ECK-23, "Fuel Heater With Water In Fuel Level Sensor"
4
Fuel pressure sensor
COMPONENT PARTS
ECK-13
< SYSTEM DESCRIPTION >
[K9K]
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ENGINE COMPARTMENT
5
Alternator
6
Hood switch
7
Reverse / neutral position switch
It detects that the transmission is in reverse and neutral.
8
ECM
9
Engine restart bypass relay
ECK-22, "Engine Restart Bypass Relay"
No.
Component parts
Function
JSBIA4977ZZ
No.
Component parts
Function
1
Fuel injector
2
Exhaust gas pressure sensor
ECK-20, "Exhaust Gas Pressure Sensor"
3
Glow plug
4
High pressure fuel pump
ECK-17, "High Pressure Fuel Pump"
5
Fuel flow actuator
ECK-17, "High Pressure Fuel Pump"
6
Fuel temperature sensor
ECK-18, "Fuel Temperature Sensor"
7
Fuel rail pressure (FRP) sensor
ECK-18, "Fuel Rail Pressure Sensor"
8
Camshaft position (CMP) sensor
ECK-16, "Camshaft Position Sensor"
9
Electric throttle control actuator
ECK-19, "Electric Throttle Control Actuator"
10
Turbocharger boost control solenoid valve
ECK-18, "Turbocharger Boost Control Solenoid Valve"
11
High pressure EGR volume control valve
ECK-18, "High Pressure EGR Volume Control Valve"
12
Turbocharger boost sensor [with intake air temperature (IAT)
sensor 2]
ECK-17, "Turbocharger Boost Sensor"
ECK-17, "Intake Air Temperature Sensor 2"
13
Engine coolant temperature sensor
ECK-17, "Engine Coolant Temperature Sensor"
14
Low pressure EGR temperature sensor
ECK-19, "Low Pressure EGR Temperature Sensor"
15
Crankshaft position sensor
ECK-16, "Crankshaft Position Sensor"
16
Low pressure EGR volume control valve
ECK-18, "Low Pressure EGR Volume Control Valve"
17
DPF (diesel particulate filter) differential pressure sensor
ECK-20, "DPF Differential Pressure Sensor"
18
Exhaust gas temperature (EGT) sensor 2
ECK-20, "Exhaust Gas Temperature Sensor 2"
19
Exhaust gas temperature (EGT) sensor 1
ECK-14
< SYSTEM DESCRIPTION >
[K9K]
COMPONENT PARTS
EXHAUST COMPARTMENT
BODY COMPARTMENT
JSBIA4847ZZ
No.
Component parts
Function
1
Exhaust electric throttle control actuator
COMPONENT PARTS
ECK-15
< SYSTEM DESCRIPTION >
[K9K]
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JSBIA4848ZZ
Behind luggage side finisher RH
Radiator assembly
Behind front fender protector LH
Instrument lower panel
Periphery of pedals
Behind of glove upper box assembly
No.
Component parts
Function
1
Refrigerant pressure sensor
ECK-21, "Refrigerant Pressure Sensor"
2
Active grille shutter
3
Fuel pump
4
ASCD steering switch
ECK-22, "ASCD Steering Switch"
5
Combination meter
MWI-7, "Component Description"
6
Fuel pump control module (FPCM)
ECK-17, "FPCM (Fuel Pump Control Module)"
7
Cooling fan resistor
ECK-21, "Cooling Fan Resistor"
8
Cooling fan
9
Thermoplunger control unit
ECK-21, "Thermoplunger Control Unit"
10
Thermoplunger
11
Glow control unit
12
Relay box
—
13
Fuse block (J/B)
—
ECK-16
< SYSTEM DESCRIPTION >
[K9K]
COMPONENT PARTS
ECM
INFOID:0000000010289584
The ECM consists of a microcomputer and connectors for signal input and output and for power supply. The
ECM controls the engine.
Camshaft Position Sensor
INFOID:0000000010289585
The camshaft position (CMP) sensor senses the retraction with camshaft to identify a particular cylinder. The
camshaft position (CMP) sensor senses the piston position. When the crankshaft position (CKP) sensor sys-
tem becomes inoperative, the camshaft position (CMP) sensor provides various controls of engine parts
instead, utilizing timing of cylinder identification signals. The sensor consists of a permanent magnet and Hall
IC.
Crankshaft Position Sensor
INFOID:0000000010289586
Crankshaft position (CKP) sensor detects engine speed and crank-
shaft position. The size difference of gear tooth placed on signal
plate changes the gap between signal plate and sensor, and mag-
netic field change around the sensor induces sensor output voltage
change. ECM detects engine speed and crankshaft position based
on this voltage change.
Mass Air Flow Sensor
INFOID:0000000010289587
The mass air flow sensor (1) is installed in the passage of intake air
and measures the intake flow rate. The mass air flow sensor controls
the temperature of the hot wire to a certain amount. The heat gener-
ated by the hot wire is reduced as the intake air flows around it. The
greater air flow, the greater the heat loss.
Therefore, the electric current supplied to hot wire is changed to
maintain the temperature of the hot wire as air flow increases. The
ECM detects the air flow by means of this current change.
Intake Air Temperature Sensor 1
INFOID:0000000010289588
The intake air temperature (IAT) sensor 1 is built-into the mass air flow sensor. The sensor detects intake air
temperature and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical
resistance of the thermistor decreases in response to the rise in temperature.
14
Stop/start OFF switch
ECK-23, "Stop/Start OFF Switch"
15
Clutch interlock switch
ECK-21, "Clutch Interlock Switch & Clutch Pedal Position
Switch"
16
Clutch pedal position switch
ECK-21, "Clutch Interlock Switch & Clutch Pedal Position
Switch"
17
Accelerator pedal position sensor
ECK-21, "Accelerator Pedal Position Sensor"
18
Stop lamp switch
19
DC/DC converter
No.
Component parts
Function
JSBIA0442ZZ
MBIB1523E
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