Page 83 of 236

13B-83
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF070
PRESENT
OR
STOREDCLUTCH SWITCH CIRCUIT
1.DEF : no signal
2.DEF : inconsistent signal
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the clutch pedal is depressed, or during a road test.
Special notes:
Use bornier Ele. 1681 for all operations on the injection computer connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
Check the conformity and adjustment of the clutch switch (position, connection).
– display status ET405 Clutch pedal switch,
– when the clutch pedal is engaged, status ET405 should be INACTIVE,
– when the clutch pedal is disengaged, status ET405 should be ACTIVE,
If these checks are not OK, replace the clutch switch.
If these checks are correct:
Check the connections of the clutch pedal switch.
Check the injection computer connections.
Repair if necessary.
Check for continuity and the absence of interference resistance on the following connection:
Injection computer black 32-track connector A, track C4 Track 1 Clutch pedal switch
Repair if necessary.
Check for earth on track 2 of the clutch pedal switch.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF070/EDC16_V48_DF070/EDC16_V4C_DF070
Page 84 of 236

13B-84
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF091
PRESENT
OR
STORED
VEHICLE SPEED SIGNAL
1.DEF : inconsistent signal
2.DEF : no signal
3.DEF : configuration absent or incorrect
4.DEF : signal outside upper limit
5.DEF : CAN connection fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present during a road test.
Special notes:
Use bornier Ele. 1681 for all operations on the injection computer connectors.
Check the ABS computer connections.
Check the injection computer connections.
Repair if necessary.
Carry out a fault finding procedure on the multiplex network and ABS.
See 88B Multiplexing and 38C ABS to deal with any faults.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF091/EDC16_V48_DF091/EDC16_V4C_DF091
Page 85 of 236

13B-85
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF097
PRESENT
OR
STOREDCAMSHAFT SENSOR CIRCUIT
1.DEF : no signal
2.DEF : inconsistent signal
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault declared present before an attempt is made to start the engine it will not be
possible to start the engine.
Use bornier Ele. 1681 for all operations on the injection computer connectors.
1.DEF
2.DEF
NOTESPriority when dealing with a number of faults:
In the event of more than one fault:
–DF056 Air flow sensor circuit,
–DF057 Water in diesel fuel detector circuit,
–DF067 Damper control circuit,
Check the conformity of the + 12 V after relay supply line,
from track 2 of the UPC PPM1 connector.
(Use the Wiring Diagrams Technical Note for the vehicle).
Check the camshaft sensor connectors,
Check the injection computer connections.
Check that the camshaft sensor is correctly positioned and mounted.
Also check the general condition (damaged housing, heating up, etc.).
Carry out the necessary repairs.
Check the continuity and absence of interference resistance of the following connections:
Injection computer brown 48-track connector B, track D1 Track 2 Camshaft sensor
Injection computer brown 48-track connector B, track A1 Track 1 Camshaft sensor
Repair if necessary.
Check the camshaft sensor resistance between tracks 2 and 3.
If the resistance is not 10250Ω ±500 at 20°C, replace the sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF097/EDC16_V48_DF097/EDC16_V4C_DF097
Page 87 of 236

13B-87
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF098
PRESENT
OR
STOREDFUEL TEMPERATURE SENSOR CIRCUIT
CC.0 : short circuit to earth
CO.1 : open circuit or short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present following a road test or after attempting to cold start the
engine.
Special notes:
– Use bornier Ele. 1681 for all operations on the injection computer connectors.
– The default value given by the diagnostic tool is 100°C.
CC.0
NOTESNone.
Check the fuel temperature sensor connections.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the fuel temperature sensor across tracks 1 and 2.
Replace the fuel temperature sensor if the resistance is not: 2050Ω ± 100 at 25°C
810Ω ± 47 at 50°C
309 Ω ± 17 at 80°C
Check the continuity and insulation from earth of the following connections:
Injection computer brown 48-track connector B, track H2 Track 1 fuel temperature sensor
Injection computer grey 32-track connector C, track F1 Track 2 fuel temperature sensor
If the fault is still present, replace the fuel temperature sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF098/EDC16_V48_DF098/EDC16_V4C_DF098
Page 89 of 236
13B-89
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF114
PRESENT
OR
STOREDEGR SOLENOID VALVE CIRCUIT
1.DEF : Insufficient EGR valve flow
2.DEF : Excessive EGR valve flow
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the engine is started,
– a road test,
– an actuator command AC002 EGR solenoid valve.
Special notes:
If the fault is present:
– the EGR function is inhibited,
– the vehicle performance is reduced,
– the level 1 warning light is lit.
Use bornier Ele. 1681 for all operations on the injection computer connectors.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF114/EDC16_V48_DF114/EDC16_V4C_DF114
Page 90 of 236

13B-90
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF114
CONTINUED
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the EGR solenoid valve between tracks 1 and 5.
If the resistance measured is not 8Ω ± 0.5 at 20°C, replace the exhaust gas recirculation valve.
Check the continuity and absence of interference resistance of the following connections:
UPC PPM1 connector, track 1 Track 1 EGR solenoid valve
Injection computer, brown 48-track connector B, track L2 Track 5 EGR solenoid valve
Check that there are no leaks on the EGR circuit (pipes pierced or damaged) and that the clamps are properly
tightened.
Check the operation of the EGR valve:
– exit fault finding mode in CLIP,
– switch off the vehicle ignition,
– disconnect the EGR valve connector,
– remove the EGR valve,
– disconnect the connector and EGR valve,
– switch on the ignition and return to fault finding mode on the CLIP tool,
– run command AC002 EGR solenoid valve with valve removed.
Check:
– the position of the valve,
– that there is no play between the valve and the control rod, and the general condition (clogging, hard point, etc.),
– the valve closure when the command is completed.
If, during the command:
– no valve movement is evident,
– the valve does not open or close completely,
Check that there are no particles blocking the movement of the piston.
If a particle was blocking the movement of the valve, run command AC002 EGR solenoid valve, again and check
the valve is operating correctly.
If the valve is operating normally, run command RZ002 EGR Adaptives to reinitialise the valve operating values.
If the valve is jammed or irrevocably seized, replace the EGR valve.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
Page 91 of 236
13B-91
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF118
PRESENT
OR
STOREDEGR SOLENOID VALVE SERVO-CONTROL
1.DEF : Insufficient EGR valve flow
2.DEF : Excessive EGR valve flow
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the engine is started,
– a road test,
– an actuator command AC002 EGR solenoid valve.
Special notes:
If the fault is present:
– the EGR function is inhibited,
– the vehicle performance is reduced,
– the level 1 warning light is lit.
Use bornier Ele. 1681 for all operations on the injection computer connectors.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF118/EDC16_V48_DF118/EDC16_V4C_DF118
Page 92 of 236

13B-92
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF118
CONTINUED
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the EGR solenoid valve between tracks 1 and 5.
If the resistance measured is not 8Ω ± 0.5Ωat 20°C, replace the EGR valve.
Check the continuity and absence of interference resistance of the following connections:
UPC PPM1 connector, track 1 Track 1 EGR valve connector
Injection computer brown 48-track connector B, track L2 Track 5 EGR valve connector
Check that there are no leaks on the EGR circuit (pipes pierced or damaged) and that the clamps are properly
tightened.
Check the operation of the EGR valve:
– exit fault finding mode in CLIP,
– switch off the vehicle ignition,
– disconnect the EGR valve connector,
– remove the EGR valve,
– disconnect the connector and EGR valve,
– switch on the ignition and return to fault finding mode on the CLIP tool,
– run command AC002 EGR solenoid valve with valve removed.
– Check: – the position of the valve,
– that there is no play between the valve and the control rod, and the general condition (clogging,
hard point, etc.),
– the valve closure when the command is completed.
If, during the command:
– no valve movement is evident,
– the valve does not open or close completely.
Check that there are no particles blocking the movement of the piston.
If a particle was blocking the movement of the valve, run command AC002 EGR solenoid valve, again and check
the valve is operating correctly.
If the valve is operating normally, run command RZ002 EGR Adaptives to reinitialise the valve operating values.
If the valve is stuck or seized beyond repair, replace the exhaust gas recirculation valve.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.