Page 99 of 348

17B-99V7 MR-413-X44-17B000$132.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
DF085
PRESENT
OR
STOREDFUEL PUMP RELAY CONTROL CIRCUITCO: Open circuit
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: EOBD
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present with the ignition on or the engine running, or during
command AC015 Fuel pump relay.
Special notes:
CO/CC.1: The effect of the fault is the same as running out of fuel. The vehicle stalls
and cannot be restarted.
CC.0: There is danger of fire in the event of petrol leaking during an accident.
Intermittent CO: Risk of intermittent ignition cut-off and draining the battery.
Use the Wiring Diagrams Technical Note for NEW TWINGO, E33, CLIO III,
or MODUS.
Check the condition of the engine management computer connector (component code 120).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
For NEW TWINGO or E33:
Check the condition of the fuel pump relay (component code 236).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Use the "universal bornier" to check the insulation and continuity of the following connection:
●3AC between components 236 and 120,
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check for an earth during activation of command AC015 Fuel pump relay.
SIM32_V44_DF085/SIM32_V4C_DF085/SIM32_V50_DF085/SIM32_V54_DF085
AFTER REPAIRFollow the instructions to confirm repair:
- If the fault is present, continue to deal with the fault.
- If the fault is stored, ignore it.
Deal with any other faults.
Clear the stored faults.
Page 116 of 348

17B-116V7 MR-413-X44-17B000$132.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
DF109
PRESENT
OR
STOREDLOW FUEL LEVEL MISFIRING
1.DEF: Destructive misfiring
2.DEF: Polluting misfiring
3.DEF: EOBD
NOTESPriorities when dealing with a number of faults:
Firstly, deal with the following faults:
–DF085 Fuel pump relay control circuit,
–DF026 Cylinder 1 injector circuit
–DF027 Cylinder 2 injector circuit, DF028 Cylinder 3 injector circuit,
–DF029 Cylinder 4 injector circuit,
–DF059 Misfiring on cylinder 1,
–DF060 Misfiring on cylinder 2,
–DF061 Misfiring on cylinder 3,
–DF062 Misfiring on cylinder 4,
–DF436 Combustion misfiring detection,
if they are present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is considered present when the engine is running.
Special notes:
1.DEF: As soon as the fault is detected, the injection is cut for the faulty cylinder(s) to
limit the rise in temperature inside the catalytic converter. The OBD warning light
flashes for as long as the fault is present.
2.DEF: The OBD warning light is continuously lit.
Check:
–the level of fuel in the tank,
–the conformity and the grade of the fuel, apply test 1 Petrol conformity check,
–the fuel filter,
–the fuel pump,
–the fuel lines,
–the fuel pressure.
If there is no present or stored misfiring fault, the misfiring was caused by the low fuel level.
SIM32_V44_DF109/SIM32_V4C_DF109/SIM32_V50_DF109/SIM32_V54_DF109
AFTER REPAIRFollow the instructions to confirm repair:
- If the fault is present, continue to deal with the fault.
- If the fault is stored, ignore it.
Deal with any other faults.
Clear the stored faults.
Page 146 of 348

17B-146V7 MR-413-X44-17B000$133.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
DF436
PRESENT
OR
STOREDDETECTION OF ENGINE MISFIRING1.DEF: Destructive misfiring
2.DEF: Polluting misfiring
3.DEF: EOBD
4.DEF: Component in poor condition
NOTESPriorities when dealing with a number of faults:
Firstly, deal with the following faults:
–ignition
DF351 Ignition coil circuit 1-4,
DF352 Ignition coil circuit 2-3,
–fuel supply circuit
DF026 Cylinder 1 injector circuit
DF027 Cylinder 2 injector circuit,
DF028 Cylinder 3 injector circuit
DF029 Cylinder 4 injector circuit,
DF085 Fuel pump relay control circuit,
–engine flywheel signal
DF154 Flywheel signal sensor circuit,
DF457 Engine flywheel target.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the engine has been running for at least 15 minutes.
Special notes:
1.DEF: As soon as the fault is detected, the injection is cut off on the faulty cylinder(s)
to limit the temperature increase in the catalytic converter. The OBD warning light
flashes for as long as the fault is present.
2.DEF: The OBD warning light is continuously lit.
SIM32_V44_DF436/SIM32_V4C_DF436/SIM32_V50_DF436/SIM32_V54_DF436
AFTER REPAIREnsure that all the faults have been dealt with.
Clear the stored faults. Do not clear the programming.
To check that the system has been properly repaired:
–there must be no further electrical faults,
–programming has been carried out,
the engine must be warm (minimum 75˚C), and idling, with all electrical consumers
running for 15 minutes.