Page 343 of 348

17B-343V7 MR-413-X44-17B000$210.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ALP2 The engine will not start
NOTESApply ALP2 after a complete check using the diagnostic tool.
If the starter motor does not operate, there may be a fault with the engine immobiliser. Check status ET341
Immobiliser code programmed, if YES apply the following procedure, if NO, run command SC017 Programming
injection immobiliser code, in the UCH in repair mode (see 17B, Petrol injection, Replacement of
components).
In the event of a fault, perform fault finding on the UCH (see 87B, Passenger compartment connection unit).
Check the condition of the battery.
Check the cleanliness, condition and tightness of the battery terminals.
Check that the battery is correctly earthed to the vehicle bodywork.
Check that the + battery leads are correctly connected.
Carry out fault finding on the charging circuit (see Technical Note 6014A, Checking the charging circuit).
Check that the starter motor is properly connected.
Check that the starter operates correctly.
Check the condition and conformity of the spark plugs.
Check the mounting, cleanliness and condition of the flywheel signal sensor.
Check the flywheel signal sensor air gap.
Check the condition of the flywheel.
Check that the air filter is not clogged.
Check that the air inlet circuit is not blocked.
Check that there is fuel in the tank (fuel sender fault).
Check that the tank vent is not blocked.
Check the conformity of the fuel in the tank, apply test 1 Petrol conformity check.
Check that there are no leaks in the fuel system, from the tank to the injectors.
Check that there are no kinked hoses (especially after a removal operation).
Check the fuel flow rate and pressure.
Check the sealing of the injectors, and that they are working properly.
Check that the exhaust system is not blocked and the catalytic converter not clogged.
Check the timing setting.
Check the cylinder compressions.
SIM32_V44_ALP02 / SIM32_V4C_ALP02 / SIM32_V50_ALP02 / SIM32_V54_ALP02
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Repeat the conformity check from the start.
Page 344 of 348

17B-344V7 MR-413-X44-17B000$210.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ALP3 Idle speed faults
NOTESApply ALP3 after a complete check using the diagnostic tool.
WARNING:
Never drive the vehicle without checking first that there are no throttle
valve faults.
Check that the oil level is not too high.
Check the inlet system sealing, from the throttle to the cylinder head.
Check that the fuel vapour absorber bleed is not disconnected or jammed open.
Check that there are no leaks in the fuel vapour absorber bleed system.
Check that there are no leaks in the braking assistance system.
Check that there are no leaks in the oil vapour recovery circuit (manifold - cylinder head).
Check that there are no leaks around the manifold pressure sensor.
Check that there are no leaks around the air temperature sensor.
Check that the air filter is not clogged.
Check that the air inlet circuit is not blocked.
Check that throttle valve is not clogged.
Measure the electrical resistance of the quadruple ignition module.
Check the condition and conformity of the spark plugs.
Check the mounting, cleanliness and condition of the flywheel signal sensor.
Check the flywheel signal sensor air gap.
Check the condition and cleanliness of the flywheel.
Check that the tank vent is not blocked.
Check the conformity of the fuel in the tank, apply test 1 Petrol conformity check.
Check that there are no leaks in the fuel system, from the tank to the injectors.
Check that there are no kinked hoses (especially after a removal operation).
Check the fuel flow rate and pressure.
Check that the injectors are working properly.
Check that the exhaust system is not blocked and the catalytic converter not clogged.
Check the timing setting.
Check the cylinder compressions.
SIM32_V44_ALP03 / SIM32_V4C_ALP03 / SIM32_V50_ALP03 / SIM32_V54_ALP03
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Repeat the conformity check from the start.
Page 345 of 348

17B-345V7 MR-413-X44-17B000$210.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ALP4 Faults occurring while driving
NOTESApply ALP4 after a complete check using the diagnostic tool.
WARNING:
Never drive the vehicle without checking first that there are no throttle
valve faults.
Check that the oil level is not too high.
Check the condition and conformity of the spark plugs.
Check the mounting, cleanliness and condition of the flywheel signal sensor.
Check the flywheel signal sensor air gap.
Check the condition and cleanliness of the flywheel.
Check that the air filter is not clogged.
Check that the air inlet circuit is not blocked.
Check that throttle valve is not clogged.
Check inlet line sealing, from the throttle to the cylinder head.
Check that the fuel vapour absorber bleed is not disconnected or jammed open.
Check that there are no leaks in the fuel vapour absorber bleed system.
Check that there are no leaks in the braking assistance system.
Check that there are no leaks in the oil vapour recovery system (manifold/cylinder head).
Check that there are no leaks around the manifold pressure sensor.
Check that there are no leaks around the air temperature sensor.
Check that the tank vent is not blocked.
Check the conformity of the fuel in the tank, apply test 1 Petrol conformity check.
Check that there are no leaks in the fuel system, from the tank to the injectors.
Check that there are no kinked hoses (especially after a removal operation).
Check the fuel flow rate and pressure.
Check that the injectors are working properly.
Check that the exhaust system is not blocked and the catalytic converter not clogged.
Check the timing setting.
Check the cylinder compressions.
SIM32_V44_ALP04 / SIM32_V4C_ALP04 / SIM32_V50_ALP04 / SIM32_V54_ALP04
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Repeat the conformity check from the start.