Rail Pressure Control Fault (Too High Pressure) - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

Rail Pressure Control Fault
(Too High Pressure)
Trouble Code and Symptom
P1254 Maximum Value
P1253 Minimum Value
Diagnosis Procedures
1. Rail Pressure Control
Read DTC
Rail preaaure sensor or IMV
Related DTC?
NO
Rail Pressure Sensor
Problem?
NO
Check transfer fuel system
DIAGNOSIS
DI ENG SM - 2004.4
Trouble Code
YES
Refer to IMV
diagnosis
YES
Repair or
replace
Symptom
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
Transfer Fuel System
Problem?
NO
Check high pressure fuel
system
H/P Fuel System Problem?
NO
Replace ECU
DI10-129
YES
Repair or
replace
YES
Repair or
replace
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN