13B-58
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF043
PRESENT
OR
STOREDCYLINDER 4 INJECTOR CIRCUIT
CC.1 : short circuit to + 12 V
CO : open circuit
CC : short circuit
1.DEF : Injector control
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine has been started.
Special notes:
If CC.1, CC, or 1.DEF is present, the level 2 warning light is lit.
If CO is present the level 1 warning light is lit.
If CO is still present, the OBD warning light will come on after three consecutive driving
cycles (starting + 5 seconds + switch off the ignition and wait 40 seconds.).
If the fault is present, the injection on cylinder 1 is disabled.
Use bornier Elé. 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 test enables the condition and the conformity of the engine wiring harness to be checked.
CC.1
CO
CC
1.DEF
NOTESNone.
Check the connections on injector no 4.
Check the injection computer connections.
Repair if necessary.
Disconnect injector no. 4.
Measure the resistance of injector no. 4 between tracks 1 and 2.
Replace the injector if there is a short circuit (R = 0Ω) or an open circuit (infinite resistance measurement).
Otherwise, reconnect injector no. 4.
Check the continuity, and the absence of resistance of the following connections:
Injection computer grey 32-track connector C, track H3 Track 2 injector no. 4
Injection computer grey 32-track connector C, track G1 Track 1 injector no. 4
If the fault is still present: run test 1 INJECTOR TEST.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF043/EDC16_V48_DF043/EDC16_V4C_DF043
13B-60
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF047
PRESENT
OR
STOREDCOMPUTER SUPPLY VOLTAGE
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after several starting attempts, or with the engine running.
Special notes:
Computer operating voltage: 9 V < operating voltage < 16 V.
If the battery voltage is too low this may cause the level 1 fault warning light to
come on.
It is then not possible to start the engine.
Use bornier Elé. 1681 for all operations on the injection computer connectors.
Check for continuity and the absence of interference resistance on the following connection:
Injection computer connector A, black 32-track track D1 Track 1 black connector of the UPC
Repair if necessary.
Check the condition of the FD5 fuse on the UPC (poor contact, or oxidation on the relay mounting clips).
Repair if necessary.
If the fault does not recur, start the engine and wait 1 min.
Carry out a road test and check the system faults.
If there are no faults, fault finding is complete.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF047/EDC16_V48_DF047/EDC16_V4C_DF047
13B-78
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF057
PRESENT
OR
STOREDWATER IN DIESEL FUEL DETECTOR CIRCUIT
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the engine is started or following a road test.
A) Make sure the water in diesel fuel detection sensor is properly connected.
– If not, clear the fault,
– carry out a road test (speed > 12 mph (20 km/h) at an engine speed of> 1200 rpm) for more than 30 seconds.
– If the fault does not recur, end the fault finding procedure.
– If the fault does recur, go to step B.
B) If the sensor is properly connected:
– drain the diesel filter unit (seeMR 364, 13A, Fuel supply),
– clear the fault,
– carry out a road test (speed > 12 mph (20 km/h) at an engine speed of> 1200 rpm) for more than 30 seconds.
If the fault does not recur, end the fault finding procedure.
C) If the fault recurs:
–Check the continuity and the absence of unwanted resistance on the connection between:
Injection computer, grey 32-track connector C, track A2 Track 3 of the water detection sensor
–Check the power supply to the water detection sensor:
UPC PPM1 black connector track 2 Track 1 the water detection sensor
Earth Track 2 water detection sensor
– Carry out the necessary repairs.
If none of these checks reveal any faults:
– Replace the water detection sensor (see MR 364, 13A, Fuel supply).
– Clear the fault.
– Carry out a road test (speed > 12 mph (20 km/h) and engine speed > 1200 rpm) for more than 30 seconds,
to confirm the repair.
Note:
if the level of water in the fuel filter unit is lower than the sensor electrodes, certain driving conditions (on a bend,
leaning) may causethe injection warning light to light up erratically.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF057/EDC16_V48_DF057/EDC16_V4C_DF057
13B-82
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
DF069
PRESENT
IMPACT DETECTED SIGNAL
NOTESFault finding procedure application conditions:
Only apply the procedure if the fault is present and if the vehicle does not start.
Special notes:
The fault appears when the injection computer receives a frontal impact signal from the
Airbag computer via the multiplex network.
As soon as the injection computer receives this signal, engine operation is inhibited
and the level 2 warning light is lit.
Use bornier Ele. 1681 for all operations on the injection computer connectors.
If the vehicle has been involved in an accident:
Carry out any necessary repairs:
– clear the fault,
– switch off the ignition and wait 30 seconds,
– wait for the engine immobiliser indicator light to flash,
– switch on the ignition,
If the fault does not reappear, end of fault finding procedure.
If the fault recurs, carry out fault finding on the AIRBAG computer.
If the vehicle has not been involved in an accident, carry out fault finding on the Airbag computer.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF069/EDC16_V48_DF069/EDC16_V4C_DF069
13B-95
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
DF209
PRESENT
OR
STOREDEGR VALVE POSITION SENSOR CIRCUIT
CO.0 : open circuit or short circuit to earth
CC.1 : short circuit to + 12 V
1.DEF : micro-breaks
NOTESPriorities when dealing with a number of faults:
Deal with fault DF012 Sensor feed no. 2 voltage first, if it is present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present following a road test or an actuator control AC002 EGR
Solenoid Valve.
Special notes:
If the fault is present:
– there is smoke from the exhaust,
– the EGR function is deactivated.
If CO.0 and/or CC.1 is still present, the OBD warning light will come on after three
consecutive driving cycles (starting + 5 seconds + switch off the ignition and wait
40 seconds).
Use bornier Elé. 1681 for any work on the computer connectors.
CO.0
NOTESNone.
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and insulation from earth of the following connections:
Injection computer, brown 48 track connector B track J2 Track 6 EGR valve
Injection computer brown 48-track connector B, track F4 Track 2 EGR valve
Repair if necessary.
Measure the resistances of the EGR valve between:
–tracks 2 and 4. If the resistance of the EGR valve is not between 2.4 kΩ and 5.6 kΩ, replace the EGR valve.
–tracks 2 and 6. If the resistance of the EGR valve is not between 1.9 kΩ and 6.4 kΩ, replace the EGR valve.
–tracks 4 and 6. If the resistance of the EGR valve is not between 0.8 kΩ and 3.8 kΩ, replace the EGR valve.
If the fault is still present, replace the EGR valve.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF209/EDC16_V48_DF209/EDC16_V4C_DF209
13B-99
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
DF272
PRESENT
OR
STOREDEGR VALVE CONTROL CIRCUIT
CC.1 : short circuit to + 12 V
CC.0 : short circuit to earth
CO : open circuit
1.DEF : internal electrical fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present following a road test or an actuator control AC002 EGR
Solenoid Valve.
Special notes:
The EGR and turbocharging functions are inhibited.
The level 1 warning light comes on.
If CC.0 is still present, the OBD warning light will come on after three consecutive
driving cycles (starting + 5 seconds + switch off the ignition and wait 40 seconds).
Use bornier Elé. 1681 for all operations on the injection computer connectors.
WARNING
If dealing with this fault requires the EGR valve to be replaced, run command RZ002 EGR Adaptives
described in Interpretation of commands in this section.
CC.1
NOTESNone.
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 is not approximately 8 Ω ±0.5 at 20°C, replace the EGR valve.
Check the continuity and insulation against + 12 V of the following connection:
Injection computer brown 48-track connector B, track L2 Track 5 of the EGR valve
Repair if necessary.
If the fault is still present, replace the EGR valve
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF272/EDC16_V48_DF272/EDC16_V4C_DF272
13B-106
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 48 and 4C
DF621
PRESENT
OR
STOREDEGR VALVE LOCKED OPEN (OBD fault)
WARNING
This fault only appears in Vdiag 48 and 4C.
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– a road test,
– an actuator command AC002 EGR solenoid valve.
Special notes:
The EGR and turbocharging functions are inhibited.
The level 1 warning light comes on.
The OBD warning light will come on after three consecutive driving cycles (starting +
5 seconds + switch off the ignition and wait 40 seconds).
Use bornier Ele. 1681 for all operations on the injection computer connectors.
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
Clear any stored faults.
Run command RZ002 EGR Adaptives to reinitialise the valve operating values.
Switch off the ignition and wait for the engine immobiliser warning light to start flashing.
Switch the ignition on again and check the system faults.
If the fault is still present:
– remove the EGR valve and reconnect it after removing it,
– check that the movement of the valve is not being blocked by a particle,
– check that the valve is not jammed or stuck in one position,
– run command AC002 EGR solenoid valve,
– check the movement of the solenoid valve,
– check that the solenoid valve is completely closed,
– if there is no movement, or if the valve is seized and cannot be repaired, replace the EGR solenoid valve.
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V48_DF621/EDC16_V4C_DF621
13B - 192
DIESEL INJECTION
Fault finding - Interpretation of commands13B
V10 MR-372-J84-13B150$752.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
RZ002
EGR ADAPTIVES
NOTESThis command is only performed after the exhaust gas recirculation valve has been
replaced.
Deal with all faults which do not involve the exhaust gas recirculation valve before
programming the valve.
After replacing the exhaust gas recirculation valve, clear the valve offsets from the memory.
Procedure to be followed after replacing the exhaust gas recirculation valve:
– Switch on the ignition.
– Run command RZ002.
– Once the command has terminated, check that the following parameters and statuses correctly indicate the
statuses below:
–PR128 EGR valve first offset = 0 %
–PR129 EGR valve last offset= 0 %
–PR088 EGR valve position feedback= 0 %
– When the command has finished, switch off the ignition and exit fault finding mode.
–Wait 30 seconds, and switch on the ignition again.
– Switch off the ignition again and wait 30 seconds.
– Refer to the following parameters again:
– PR128 EGR valve first offset: 15 % < X < 30 %
– PR129 EGR valve last offset: 15 % < X < 40 %
– If the parameters are not correct, refer to the interpretation of DF272 EGR valve control circuit
–Otherwise
– Start the engine.
– Let the engine idle for 1min, accelerate to 2,500 rpm for 5 seconds and return to idle speed.
– Repeat this procedure 5 times.
Check the faults.
If the fault does not recur, end the fault finding procedure.
If the fault recurs, restart the procedure after disconnecting and reconnecting the valve.
If the fault is still present, replace the EGR valve.
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_RZ002/EDC16_V48_RZ002/EDC16_V4C_RZ002