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

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