Page 177 of 181

PETROL INJECTION
Fault finding – Fault Finding Chart17B
17B - 177V12 MR-372-J84-17B000$900.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ALP 1
CONTINUED 1
CLIP VEHICLE
CHECK
(CONTINUED 1)Using the Universal bornier, check the following tracks on the vehicle's diagnostic
socket:
Track 1 + After ignition
Track 16 +Battery
Tracks 4 and 5 Earth
Repair if necessary.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the computer connections.
Using the universal bornier, check for continuity on the CAN communication lines:
Injection computer track A4 connector A track 6 of the
diagnostic socket
Injection computer track A3 connector A track 14 of the vehicle
diagnostic socket
Repair if necessary.
Check the continuity of the K communication line:
Injection computertrack B4 connector A track 7 of the vehicle
diagnostic socket
Repair if necessary.
Disconnect the computer earth terminal from the negative battery terminal.
Check the continuity and insulation of the following tracks:
Injection computer track L1 connector C Earth terminal
Injection computer track M1 connector C Earth terminal
Injection computer track M1 connector B Earth terminal
Injection computer track L1, connector B Earth terminal
Repair if necessary.
AFTER REPAIRRepeat the conformity check from the start.
JSAA741.0
Page 178 of 181

PETROL INJECTION
Fault finding – Fault Finding Chart17B
17B - 178V12 MR-372-J84-17B000$900.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ALP 1
CONTINUED 2
CLIP VEHICLE
CHECK
(CONTINUED 2)In the Protection and Switching Unit disconnect the "PEM" connector and check
the cleanliness and condition of the connections.
Using the Universal bornier, check for insulation and continuity on the following
connection:
Computer, connectorB, track D4Protection and Switching Unit
connector PEM track 2
Repair if necessary.
In the Protection and Switching Unit disconnect the "PPM1" connector and check
the cleanliness and condition of the connections.
Using the universal bornier, check the continuity on the following connection:
Computer, connectorB, track M2Protection and Switching Unit
connector PPM1 track 1
Repair if necessary.
In the Protection and Switching Unit disconnect the "PEH" connector and check
the cleanliness and condition of the connections.
Using the universal bornier, check the continuity on the following connection:
Computer, connector A, track D1Protection and Switching Unit,
PEH connector, track 1
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
JSAA741.0
Page 179 of 181

PETROL INJECTION
Fault finding – Fault Finding Chart17B
17B - 179V12 MR-372-J84-17B000$900.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ALP 2 The engine will not start
NOTESFollow ALP 2 after a complete check with the diagnostic tool.
(Use the relevant section in the Workshop Repair Manual to carry out certain
operations).
WARNING
Never drive the vehicle without checking first that there are no throttle valve
faults.
If the starter motor does not operate, there may be a fault with the engine immobiliser.
Carry out a fault finding procedure on the UCH.
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.
Check that the starter motor is properly connected.
Check that the starter works (see MR 364 Mechanics, 16A, Starting-charging).
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 that the fuel is of the correct type.
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.
Check the hydraulic tappets if there is camshaft noise.
AFTER REPAIRRepeat the conformity check from the start.
JSAA741.0
Page 180 of 181

PETROL INJECTION
Fault finding – Fault Finding Chart17B
17B - 180V12 MR-372-J84-17B000$900.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ALP 3 Idle speed faults
NOTESFill in ALP 3 after a complete check using the diagnostic tool.
(Use the relevant section in the Workshop Repair Manual to carry out certain
operations).
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 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 air filter is not clogged.
Check that the air inlet circuit is not blocked.
Check that throttle valve is not clogged.
Check the condition of the pencil coils and the cleanliness of their connections.
Check the electrical resistance of the pencil coil secondary circuits.
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 that the fuel is of the correct type.
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.
Check the hydraulic tappets if there is camshaft noise.
AFTER REPAIRRepeat the conformity check from the start.
JSAA741.0
Page 181 of 181

PETROL INJECTION
Fault finding – Fault Finding Chart17B
17B - 181V12 MR-372-J84-17B000$900.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ALP 4 Faults occurring while driving
NOTESFill in ALP 4 after a complete check using the diagnostic tool.
(Use the relevant section in the Workshop Repair Manual to carry out certain
operations).
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 of the pencil coils and the cleanliness of their connections.
Check the electrical resistance of the pencil coil secondary circuits.
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 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 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 that the fuel is of the correct type.
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.
Check the hydraulic tappets if there is camshaft noise.
AFTER REPAIRRepeat the conformity check from the start.
JSAA741.0