SsangYong Rexton. Service manual - part 131

DI10-129

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

DIAGNOSIS

DI ENG SM - 2004.4

Trouble Code and Symptom

Diagnosis Procedures

1. Rail Pressure Control

Rail Pressure Control Fault
(Too High Pressure)

Maximum Value

Minimum Value

Trouble Code

Symptom

P1254

P1253

Unable Accelerometer Decoding

MIL ON

Unable Dynamic Leak of Injector #1

Unable Dynamic Leak of Injector #2

Unable Dynamic Leak of Injector #4

Unable Dynamic Leak of Injector #5

Unable Dynamic Leak of Injector #3

Unable Cylinder Balancing

Unable Accelerometer Learning Strategy

YES

YES

Read DTC

Rail preaaure sensor or IMV

Related DTC?

NO

Rail Pressure Sensor

Problem?

Check transfer fuel system

NO

Replace ECU

Refer to IMV

diagnosis

Repair or

replace

YES

YES

Transfer Fuel System

Problem?

Check high pressure fuel

system

NO

H/P Fuel System Problem?

Repair or

replace

Repair or

replace

NO

DI10-130

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

DIAGNOSIS

DI ENG SM - 2004.4

2. Transfer Fuel System

YES

YES

YES

Check fuel level

Fuel Exhausted?

“Visually check transfer fuel

system (fuel leaks, installation)”

NO

Transfer Fuel System

Problem?

Check if the air in transfer

fuel system is too much

NO

Excessive Air in Transfer

Fuel System?

Add fuel

Repair or

replace

Install a

container to

H/P pump

venturi.

Remove

venturi return

lines. Fill fuel

with hand

pump.

NO

Transfer fuel system is normal

3. High Pressyre Fuel System

YES

Check high pressure fuel

system

Cause Found?

NO

Add fuel

HP fuel system is normal

YES

Check fuel filter specification

Different Specification?

NO

Replace filter
with new one

DI10-131

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

DIAGNOSIS

DI ENG SM - 2004.4

Trouble Code and Symptom

Diagnosis Procedures

1. Diagnosis Procedures (Rail Pressure Control)

Rail Pressure Control Fault
(Too High IMV Current Trim, drift)

Small Delivery of Transfer Fuel

Large Delivery of Transfer Fuel

Small Delivery of High Pressure Fuel

Large Delivery of High Pressure Fuel

Trouble Code

Symptom

P1256

P1257

P1258

P1259

Unable Accelerometer Decoding

MIL ON

Unable Dynamic Leak of Injector #1

Unable Dynamic Leak of Injector #2

Unable Dynamic Leak of Injector #4

Unable Dynamic Leak of Injector #5

Unable Dynamic Leak of Injector #3

Unable Cylinder Balancing

Unable Accelerometer Learning Strategy

YES

YES

Read DTC

Rail preaaure sensor or IMV

Related DTC?

NO

Rail Pressure Sensor

Problem?

Check transfer fuel system

NO

Replace ECU

Refer to IMV

diagnosis

Repair or

replace

YES

YES

Transfer Fuel System

Problem?

Check high pressure fuel

system

NO

H/P Fuel System Problem?

Repair or

replace

Repair or

replace

NO

DI10-132

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

DIAGNOSIS

DI ENG SM - 2004.4

YES

YES

2. Diagnosis Procedures (Transfer Fuel System)

YES

YES

Check fuel level

Fuel Exhausted?

“Visually check transfer fuel

system (fuel leaks, installation)”

NO

Transfer Fuel System

Problem?

NO

Check fuel filter specification

Different Specification?

NO

Repiar Completed

Add fuel

Repair or

replace

Replace filter
with new one

NO

Check if the air in transfer

fuel system is too much

Excessive Air in Transfer

Fuel System?

NO

Install a

container to

H/P pump

venturi.

Remove

venturi return

lines. Fill fuel

with hand

pump.

3. Diagnosis Procedures (High Pressure Fuel System)

YES

Check transfer fuel system

Cause Found?

NO

Repair or

replace

H/P Fuel System - Normal