Page 60 of 198

13B-60
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF054
STOREDTURBOCHARGING SOLENOID VALVE CONTROL CIRCUITCO.0: Open circuit or short circuit to earth
CC.1: Short circuit to +12 volts
1.DEF: At minimum limit
2.DEF: At maximum limit
NOTESSpecial notes:
If DF054, the performance of the vehicle is adversely affected and the level 1 warning
light illuminates along with the message Faulty injection.
Check the condition of the air filter, and replace it if necessary.
Check that the inlet manifold is not blocked (clogged).
Check that the turbocharger is working properly, and carry out any necessary repairs.
Check the connection and condition of the 2-track connector of the turbocharging solenoid valve.
Repair if necessary.
Check for +12 V on track 2 of the solenoid valve.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check the continuity, insulation, and the absence of interference resistance on the following connections:
Solenoid valve connector track 2 + after ignition feed
Solenoid valve connector track 1 Track M2 computer connector B
Repair if necessary.
Run TEST 11 Air line at the turbocharger.
Run TEST 10 Turbocharger control solenoid valve check.
Run TEST 12 Turbocharger.
If the fault persists, replace the turbocharging solenoid valve.
DDCR_V44_DF054M/DDCR_V48_DF054M
Page 62 of 198
13B-62
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF056
CONTINUED
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track 1 Track K2 computer connector B
Sensor connector track 2 Track A3 computer connector B
Sensor connector track 3 Track A1 computer connector B
Sensor connector track 4 Track A2 computer connector B
Sensor connector track 5 + after ignition feed
Sensor connector track 6Earth
Repair if necessary.
Also check the insulation between these connections.
If the fault is still present, replace the air flow sensor.
Page 63 of 198

13B-63
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF057
STOREDWATER IN DIESEL FUEL DETECTOR CIRCUITCO.1: Open circuit or short circuit to +12 volts
CC.0: Short circuit to earth
1.DEF: Above maximum threshold (water present)
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine running.
The level 1 warning light illuminates along with the message Check diesel filter.
CO.1
CC.0
NOTESNone.
Check for water in the diesel filter. Clean and replace the filter if necessary.
Check the condition and connection of the 3-track connector of the water detector.
Repair if necessary.
Check the connection and condition of the grey 32-track connector C of the computer.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track 3 Earth
Sensor connector track 2 Track B3 computer connector C
Sensor connector track 1 Track A3 computer connector B
Repair if necessary.
1.DEF
NOTESNone.
Bleed the diesel filter.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
DDCR_V44_DF057M/DDCR_V48_DF057M
Page 68 of 198

13B-68
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF089
PRESENTINLET MANIFOLD PRESSURE SENSOR CIRCUIT
1.DEF: Permanent low level
2.DEF: Permanent high level
3.DEF: Below minimum threshold
4.DEF: Above maximum threshold
5.DEF: Inconsistency
6.DEF: At maximum limit
7.DEF: At minimum limit
NOTESPriority when dealing with a number of faults:
– DF113 Sensor supply voltage.
Special notes:
The level 1 warning light illuminates along with the message Faulty injection.
K9K 722 ENGINE
1.DEF-2.DEF
3.DEF-4.DEF
NOTESNone.
Check the connection and condition of the 4-track connector of the inlet pressure sensor.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track 1 track C3 computer connector B
Sensor connector track 2 track J2 computer connector B
Sensor connector track 3 track C1 computer connector B
Sensor connector track 4 track C2 computer connector B
Repair if necessary.
DDCR_V44_DF089P/DDCR_V48_DF089P
Page 70 of 198

13B-70
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF089
CONTINUED 2
K9K 728 ENGINE
1.DEF-2.DEF
3.DEF-4.DEF
NOTESNone.
Check the connection and condition of the 4-track connector of the inlet pressure sensor.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track 1 track C3 computer connector B
Sensor connector track 2 track J2 computer connector B
Sensor connector track 3 track C1 computer connector B
Sensor connector track 4 track C2 computer connector B
Repair if necessary.
5.DEF
6.DEF - 7.DEF
NOTESNone.
Visually check the turbocharging circuit sealing,
Run TEST 11 Air line at the turbocharger.
Repair if necessary.
Remove the air supply ducts and check that they are not blocked.
Repair if necessary.
Check for consistency between the atmospheric pressure and the manifold pressure (PR035 = PR032).
With the engine stopped, the pressure should be approximately the same between the 2 sensors.
Replace the manifold pressure sensor if necessary.
In case of 6.DEF and 7.DEF, check the turbocharger.
Run TEST 10 Turbocharger control solenoid valve check.
Run TEST 12 Turbocharger.
Repair if necessary
Page 71 of 198

13B-71
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF098
PRESENTFUEL TEMPERATURE SENSOR CIRCUITCO.1: Open circuit or short circuit to +12 volts
CC.0: Short circuit to earth
NOTESNone.
Check the connection and condition of the 2-track connector of the fuel temperature sensor.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Measure the resistance at the fuel temperature sensor terminals.
Replace the fuel temperature sensor if the resistance is not approximately 2.2 kΩ at 25°C.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track 1 track G2 computer connector B
Sensor connector track 2 track G3 computer connector B
Repair if necessary.
DDCR_V44_DF098P/DDCR_V48_DF098P
Page 73 of 198

13B-73
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF112
STOREDCYLINDER REFERENCE SENSOR CIRCUIT1.DEF: No signal
2.DEF: Inconsistency
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present with the engine under the starter or when idling.
Check the connection and condition of the 3-track connector of the cylinder reference sensor.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track 2 Track E2 computer connector B
Sensor connector track 1Track E3 computer connector B
If necessary replace the sensor.
Check the timing setting using the appropriate Workshop Repair Manual.
DDCR_V44_DF112M/DDCR_V48_DF112M
Page 74 of 198

13B-74
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF113
PRESENTSENSOR SUPPLY VOLTAGE1.DEF: At minimum limit
2.DEF: At maximum limit
NOTESSpecial notes:
If DF113, the engine stops immediately and cannot be restarted. The level 1 warning
light illuminates along with the message Faulty injection.
Check the condition and connection of the connectors of all sensors with a 5 V feed.
– Refrigerant pressure sensor
– Pressure sensor and inlet manifold temperature sensor
– Rail pressure sensor
– Pedal sensor gang 1
– EGR valve position sensor
– Flow sensor.
Repair if necessary.
Check the condition and connection of computer connectors A, B, and C.
Repair if necessary.
To locate any internal fault in one of the sensors with a 5 V supply (short circuit), disconnect each of the sensors
on the list above in turn, checking after each disconnection whether the fault changes status from present to
stored.
If the faulty sensor is located, check its connections and that it is in order. If necessary replace the sensor.
Connect the bornier in place of the computer and check the insulation, continuity and the absence of
interference resistance on the following connections:
Computer connector C track C4 Track B refrigerant pressure sensor
Computer connector B track C1 Track 3 inlet pressure - temperature sensor
Computer connector B track D1 Track 3 rail pressure sensor
Computer connector A track G2 Track 3 pedal sensor gang 1
Computer connector B track B1 Track 2 EGR valve position sensor
Computer connector B track A1 Track 3 of the flowmeter
Repair if necessary.
If the fault is still present, apply the fault finding procedure for each sensor with a 5 V supply.
DDCR_V44_DF113P/DDCR_V48_DF113P