Page 43 of 198

13B-43
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF027
CONTINUED
YES
Injector 2 is not faulty, the fault is in the injector 2 control circuit.
Check the continuity, insulation, and the absence of interference resistance on
the following connections:
Computer connector B track G4 Track 1 injector 2
Computer connector B track H4 Track 2, injector 2
Repair if necessary.
If the fault is still present, contact the Techline.
NOInjector 2 is faulty, replace the cylinder 2 injector.
1.DEF
NOTESNone.
Check the conformity of the injectorsfitted to the vehicle in relation to the type of vehicle and engine number (low,
high or very high injector pressure).
Check that the C2I is correctly entered on the computer.
Check the accelerometer shielding on track K1 of the brown 48-track connector B of the computer.
Check that the accelerometer is secured on the engine.
After retightening the accelerometer, it is essential to clear the pressure regulation adaptives using command
RZ004 Pressure regulation adaptives.
Disconnect and reconnect the accelerometer sensor to accomplish fast programming.
If the fault is still present, replace the cylinder 2 injector.
Page 44 of 198

13B-44
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF028
PRESENT
OR
STOREDCYLINDER 3 INJECTOR CONTROL CIRCUIT
CO: Open circuit.
CC: Short circuit.
1.DEF: At minimum limit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is present with the engine idling.
Special notes: When this fault appears, the idle speed is stuck at 1000 rpm, there is
engine noise, the engine speed is unsteady, the engine performance is reduced, and the
level 1 warning light illuminates along with the message Faulty injection.
CO - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the injector connector. Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B. Repair if necessary.
Run command AC007 Cylinder 3 injector.
If 5 actuation cycles of injector 3 cannot be heard working, connect the cylinder 4 injector wire to the cylinder 3
injector and use command AC008 Cylinder 4 injector.
Does this injector actuation cycle work?
Note:
If the wires cannot be swapped, continue the procedure by replying YES to the previous question.
DDCR_V44_DF028/DDCR_V48_DF028
Page 45 of 198

13B-45
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF028
CONTINUED
YES
Injector 3 is not faulty, the fault is in the injector 3 control circuit.
Check the continuity, insulation, and the absence of interference resistance on
the following connections:
Computer connector B track C4 Track 1 injector 3
Computer connector B track D4 Track 2, injector 3
Repair if necessary.
If the fault is still present, contact the Techline.
NOInjector 3 is faulty, replace the cylinder 3 injector.
1.DEF
NOTESNone.
Check the conformity of the injectorsfitted to the vehicle in relation to the type of vehicle and engine number (low,
high or very high injector pressure).
Check that the C2I is correctly entered on the computer.
Check the accelerometer shielding on track K1 of the brown 48-track connector B of the computer.
Check that the accelerometer is secured on the engine.
After retightening the accelerometer, it is essential to clear the pressure regulation adaptives using command
RZ004 Pressure regulation adaptives.
Disconnect and reconnect the accelerometer sensor to accomplish fast programming.
If the fault is still present, replace the cylinder 3 injector.
Page 46 of 198

13B-46
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF029
PRESENT
OR
STOREDCYLINDER 4 INJECTOR CONTROL CIRCUIT
CO: Open circuit.
CC: Short circuit.
1.DEF: At minimum limit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present with the engine idling.
Special notes: When this fault appears, the idle speed is stuck at 1000 rpm, there is
engine noise, the engine speed is unsteady, the engine performance is reduced, and the
level 1 warning light illuminates along with the message Faulty injection.
CO - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the injector connector. Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B. Repair if necessary.
Run command AC008 Cylinder 4 injector.
If 5 actuation cycles of injector 4 cannot be heard working, connect the cylinder 3 injector wire to the cylinder 4
injector and use command AC007 Cylinder 3 injector.
Does this injector actuation cycle work?
Note:
If the wires cannot be swapped, continue the procedure by replying YES to the previous question.
DDCR_V44_DF029/DDCR_V48_DF029
Page 47 of 198

13B-47
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF029
CONTINUED
YES
Injector 4 is not faulty, the fault is in the injector 4 control circuit.
Check the continuity, insulation, and the absence of interference resistance on
the following connections:
Computer connector B track E4 Track 1 injector 4
Computer connector B track F4 Track 2, injector 4
Repair if necessary.
If the fault is still present, contact the Techline.
NOInjector 4 is faulty, replace the cylinder 4 injector.
1.DEF
NOTESNone.
Check the conformity of the injectorsfitted to the vehicle in relation to the type of vehicle and engine number (low,
high or very high injector pressure).
Check that the C2I is correctly entered on the computer.
Check the accelerometer shielding on track K1 of the brown 48-track connector B of the computer.
Check that the accelerometer is secured on the engine.
After retightening the accelerometer, it is essential to clear the pressure regulation adaptives using command
RZ004 Pressure regulation adaptives.
Disconnect and reconnect the accelerometer sensor to accomplish fast programming.
If the fault is still present, replace the cylinder 4 injector.
Page 48 of 198
13B-48
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF037
PRESENTENGINE IMMOBILISER
NOTESNone.
Carry out fault finding on the multiplex network.
Consult the fault finding procedure for the "keyless vehicle" function.
DDCR_V44_DF037P/DDCR_V48_DF037P
Page 52 of 198

13B-52
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF047
STOREDCOMPUTER SUPPLY VOLTAGE1.DEF: Above maximum threshold.
2.DEF: Below minimum threshold.
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is present with the engine running above 1000 rpm.
Measure the battery voltage when the ignition is switched on.
If the battery voltage < 10 V recharge the battery.
Check the condition and connection of the battery terminals.
Repair if necessary.
Check the vehicle's charging circuit.
Repair if necessary.
Check the connection and condition of the black 32-track computer connector A.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
+ after ignition feed. Track D1 computer connector A
Chassis earth Tracks G4 and H4 computer connector A
Repair if necessary.
DDCR_V44_DF047M/DDCR_V48_DF039P
Page 53 of 198

13B-53
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF049
STOREDREFRIGERANT SENSOR CIRCUITCO.1: Open circuit or short circuit to + 12 volts.
CC.0: Short circuit to earth.
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is present when the engine is running and the air conditioning is on.
Priority when dealing with several faults: - Deal first with fault DF113 Sensor supply
voltage.
Check the connection and condition of the refrigerant pressure sensor connector.
Repair if necessary.
Check the connection and condition of the computer's 32-track grey connector C.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track BTrack C4 computer connector C
Sensor connector track CTrack C3 computer connector C
Sensor connector track ATrack C3 computer connector C
Repair if necessary.
DDCR_V44_DF049M/DDCR_V48_DF049M