SsangYong: Engine Euro 4. Instruction - page 62
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
36
DIAGNOSIS
ECU
Limp
Home
Mode
Immedi-
ately
Engine Stop
Delayed
Engine
Stop
Torque
Reduction
(max.50%)
Torque
Reduction
(max.20%)
New DTC
DTC
Trouble
Help
P1120
P1121
P1122
P1123
P1124
Accelerator Pedal Sensor
#1 Malfunction
Accelerator Pedal Sensor
#2 Malfunction
Accelerator Pedal
Sensor Malfunction
(Limp Home Mode)
Accelerator Pedal
Sensor Malfunction
(Torque Mode)
Accelerator Pedal Sensor
Malfunction - Stuck
O
O
- The potentiometer 1 is not plausible
with potentiometer 2.
- Check the supply voltage to sensor.
- Check the wiring harness.
• Check the ECU pin #72, 53 and
#32, 14 for open and short.
- Check the accelerator pedal module.
- Check the ECU wiring harness.
- Replace the ECU if required.
- The potentiometer 1 is not plausible
with potentiometer 2.
- Check the supply voltage to sensor.
- Check the wiring harness.
• Check the ECU pin #72, 53 and
#32, 14 for open and short.
- Check the accelerator pedal module.
- Check the ECU wiring harness.
- Replace the ECU if required.
- When triggering limp home mode.
- Check the supply voltage to sensor.
- Check the wiring harness.
• Check the ECU pin #72, 71, 53 and
#57, 32, 14 for open and short.
- Check the accelerator pedal module.
- Check the ECU wiring harness.
- Replace the ECU if required.
- When triggering reduced torque mode.
- Check the supply voltage to sensor.
- Check the wiring harness.
• Check the ECU pin #72, 71, 53 and
#57, 32, 14 for open and short.
- Check the accelerator pedal module.
- Check the ECU wiring harness.
- Replace the ECU if required
- The accelerator pedal sensor is stuck.
- Check the brake switch wiring
harness and operations.
- Check the accelerator pedal operations.
- Check the accelerator pedal module.
- Check the ECU wiring harness.
- Replace the ECU if required.
O
O
P1148
Accelerometer (Knock
Sensor) Learning Fault
- Check if the MDP is successful.
- Check the accelerometer (knock
sensor) sensor and wiring harness.
- Replace the ECU if required.
O
P1149
Too High Water Level in
Fuel Filter
- Drain the water from fuel filter.
P1170
Torque Trim Fault - High
- Refer to P0372.
P1171
P1172
#1 Injector MDP
Malfunction
#2 Injector MDP
Malfunction
- The #1 injector MDP is faulty.
- Replace the injector and perform
C2I coding again.
- The #2 injector MDP is faulty.
- Replace the injector and perform
C2I coding again.
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
37
DIAGNOSIS
ECU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
Limp
Home
Mode
Immedi-
ately
Engine Stop
Delayed
Engine
Stop
Torque
Reduction
(max.50%)
Torque
Reduction
(max.20%)
New DTC
DTC
Trouble
Help
P1173
P1174
P1175
#3 Injector MDP
Malfunction
#4 Injector MDP
Malfunction
#5 Injector MDP
Malfunction
- The #3 injector MDP is faulty.
- Replace the injector and perform
C2I coding again.
- The #4 injector MDP is faulty.
- Replace the injector and perform
C2I coding again.
- The #5 injector MDP is faulty.
- Replace the injector and perform
C2I coding again.
P1190
Fuel Rail Pressure
Sensor Initial Signal Fault
- The rail pressure sensor initial val-
ues are higher or lower than speci-
fied values with the ignition “ON”.
• Maximum sensing values: 90 bar
(Short)
• Minimum sensing values:
- 90 bar (Open)
- Check the supply voltage to sensor.
• Output voltage at 1600 bar:
4.055 ± 0.125 V
• Output voltage at atmospheric
pressure: 0.5 ± 0.04 V
- Check the sensor and ECU wiring
harness.
• Check the ECU pin #25, #26 for
open and short.
• Check the fuel rails and high
pressure pipes for leaks.
- Check the fuel rail pressure sensor.
- Replace the ECU if required.
O
P1191
Pressure Build Up - Too
Slow
- The pressure build up during
cranking is too slow.
- Check the IMV wiring harness.
- Check the ECU wiring harness.
• Check the ECU pin #87 for open
and short.
- Check the rail pressure sensor.
• Supply voltage: 5 ± 0.1 V
• Output voltage at 1600 bar: 4.
055 ± 0.125 V
• Output voltage at atmospheric
pressure: 0.5 ± 0.04 V
- Check the transfer pressure fuel lines.
• Check the fuel level in fuel tank.
Check the fuel system for air influx.
• Check the fuel filter specification.
- Check the high pressure fuel system.
• Check the fuel rails and high
pressure pipes for leaks.
- Check the IMV resistance: 5.44
Ω
• When out of specified value: re-
place high pressure pump and IMV
- Replace the ECU if required.
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
38
DIAGNOSIS
ECU
Limp
Home
Mode
Immedi-
ately
Engine Stop
Delayed
Engine
Stop
Torque
Reduction
(max.50%)
Torque
Reduction
(max.20%)
New DTC
DTC
Trouble
Help
P1192
P1193
Fuel Rail Pressure Sensor
Initial Signal Fault - Low
Fuel Rail Pressure Sensor
Initial Signal Fault - High
O
O
- The rail pressure sensor initial
values are lower than specified
values with the ignition “ON”.
• Minimum sensing values:
- 90 bar (Open)
- Check the supply voltage to sensor.
• Output voltage at 1600 bar:
4.055 ± 0.125 V
• Output voltage at atmospheric
pressure: 0.5 ± 0.04 V
- Check the sensor and ECU wiring
harness.
• Check the ECU pin #25, #26 for
open and poor contact.
• Check the fuel rails and high
pressure pipes for leaks.
- Check the fuel rail pressure sensor.
- Replace the ECU if required.
- The rail pressure sensor initial
values are higher than specified
values with the ignition “ON”.
• Maximum sensing values: 90 bar
(Short)
- Check the supply voltage to sensor.
• Output voltage at 1600 bar:
4.055 ± 0.125 V
• Output voltage at atmospheric
pressure: 0.5 ± 0.04 V
- Check the sensor and ECU wiring
harness.
• Check the ECU pin #25, #26 for
short and poor contact.
• Check the fuel rails and high
pressure pipes for leaks.
- Check the fuel rail pressure sensor.
- Replace the ECU if required.
P1201
P1202
Injector #1 Circuit Short
Injector #2 Circuit Short
- Injector #1 circuit malfunction: Short.
• If the trouble recurs with the
injector removed, replace the
injector. Perform C2I coding and
check again.
• If the trouble does not recur, check
the wiring harness between the in-
jector and ECU (ECU pin: #117, #114).
- Replace the ECU if required.
- Injector #2 circuit malfunction: Short.
• If the trouble recurs with the
injector removed, replace the
injector. Perform C2I coding and
check again.
• If the trouble does not recur, check
the wiring harness between the in-
jector and ECU (ECU pin: #118, #121).
- Replace the ECU if required.
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
39
DIAGNOSIS
ECU
BRAKE
ECU
TCU
A/BAG
TC
RK-STICS
FFH
R/SENSOR
FA
T
C
TGS-LEVER
P/TRUNK
CCCS
Limp
Home
Mode
Immedi-
ately
Engine Stop
Delayed
Engine
Stop
Torque
Reduction
(max.50%)
Torque
Reduction
(max.20%)
New DTC
DTC
Trouble
Help
P1203
P1204
P1205
Injector #3 Circuit Short
Injector #4 Circuit Short
Injector #5 Circuit Short
- Injector #3 circuit malfunction: Short.
• If the trouble recurs with the injector
removed, replace the injector. Per-
form C2I coding and check again.
• If the trouble does not recur,
check the wiring harness
between the injector and ECU
(ECU pin: #117, #116).
- Replace the ECU if required.
- Injector #4 circuit malfunction: Short.
• If the trouble recurs with the
injector removed, replace the
injector. Perform C2I coding and
check again.
• If the trouble does not recur, check
the wiring harness between the in-
jector and ECU (ECU pin: #117, #115).
- Replace the ECU if required.
- Injector #5 circuit malfunction: Short.
• If the trouble recurs with the
injector removed, replace the
injector. Perform C2I coding and
check again.
• If the trouble does not recur, check
the wiring harness between the in-
jector and ECU (ECU pin: #118, #120).
- Replace the ECU if required.
P1234
VGT Operation Fault
(High)
- The boost pressure control is faulty.
- Check the air intake system.
- Check the supply voltage to sensor.
- Check the wiring harness and the
ECU wiring harness.
- Replace the ECU if required.
O
P1252
Too High IMV Pressure
- The rail pressure is excessively high.
- Check the IMV wiring harness.
- Check the ECU wiring harness.
• Check the ECU pin #87 for open
and short.
- Check the rail pressure sensor.
• Supply voltage: 5 ± 0.1 V
• Output voltage at 1600 bar: 4.
055 ± 0.125 V
• Output voltage at atmospheric
pressure: 0.5 ± 0.04 V
- Check the transfer pressure fuel lines.
• Check the fuel level in fuel tank.
Check the fuel system for air influx.
• Check the fuel filter specification.
- Check the high pressure fuel system.
• Check the fuel rails and high
pressure pipes for leaks.
- Check the IMV resistance: 5.44
Ω
• When out of specified value: re-
place high pressure pump and IMV
- Replace the ECU if required.
P1235
VGT Operation Fault
- The boost pressure control is faulty.
- Check the air intake system.
- Check the supply voltage to sensor.
- Check the wiring harness and the
ECU wiring harness.
- Replace the ECU if required.
O