Page 212 of 230

PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 212
PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 212V9 MR-372-J84-17B050$705.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
PR312
MANIFOLD PRESSURE
NOTESThere must be no present or stored faults.
Check the cleanliness and condition of the manifold pressure sensor and its connections.
Repair if necessary.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Using the Universal bornier, check the insulation and continuity of the following connections:
Injection computer, connectorB, track H2 track C of the manifold pressure sensor
Injection computer, connectorB, track H3 track B of the manifold pressure sensor
Injection computer, connectorB, track H4 track A of the manifold pressure sensor
Repair if necessary.
If the fault is still present, replace the manifold pressure sensor.
If the fault is still present, carry out the following checks:
The inlet line must be perfectly sealed, from the throttle valve to the cylinder head.
Check:
– the condition of the air filter,
– that the air inlet circuit is not blocked,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– the cylinder head oil vapour recovery system sealing,
– the sealing between the inlet manifold and cylinder head,
– the exhaust pipe sealing between the cylinder head and catalytic converter.
Repair if necessary.
AFTER REPAIRRepeat the conformity check from the start.
S3000_V4C_PR312/S3000_V54_PR312
Page 214 of 230

PETROL INJECTION
Fault finding - Interpretation of commands
17B
17B - 214
PETROL INJECTION
Fault finding - Interpretation of commands
17B
17B - 214V9 MR-372-J84-17B050$799.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54PETROL INJECTION
Fault finding - Interpretation of commands
AC017
CANISTER BLEED SOLENOID VALVE
NOTESThere must be no present or stored faults.
Check the cleanliness and condition of the fuel vapour absorber bleed solenoid valve connections.
Repair if necessary.
Measure the resistance of the petrol vapour absorber bleed solenoid valve.
Replace the bleed solenoid valve for the fuel vapour absorber if the resistance is not 26Ω ±4Ω at 23 °C.
Check for + 12 V feed on track 1 of the fuel vapour absorber bleed solenoid valve with the ignition on.
If +12V is not present:
– using the Universal bornier, check for continuity on the following connections:
Fuel computer, connectorB, track M2 track 1 of the petrol vapour absorber bleed
solenoid valve
Main relaytrack 1 of the petrol vapour absorber bleed
solenoid valve
Repair if necessary.
Disconnect the battery.
Disconnect the computer. Check the cleanliness and condition of the connections.
Using the Universal bornier, check the insulation and continuity of the following connection:
Petrol computer, connector C, track E1 track 2 of the fuel vapour absorber bleed
solenoid valve
Repair if necessary.
If the fault is still present, replace the solenoid valve.
AFTER REPAIRRepeat the conformity check from the start.
S3000_V4C_AC017/S3000_V54_AC017
MR-372-J84-17B050$799.mif
Page 217 of 230

PETROL INJECTION
Fault finding - Interpretation of commands
17B
17B - 217
PETROL INJECTION
Fault finding - Interpretation of commands
17B
17B - 217V9 MR-372-J84-17B050$799.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
AC195
ELECTRIC COOLANT PUMP
NOTESThere must be no present or stored faults.
Switch on the ignition and run command AC027 Motorised throttle.
If the coolant pump is not working.
Check the cleanliness, condition and fitting of the coolant pump.
Top up the coolant if necessary.
If the fault is still present, manipulate the harness to see if the status changes.
Look for any harness damage, and check the condition and connection points of the injection computer and the
coolant pump connectors.
Repair if necessary.
If the fault is still present, check for +12V on track 2 of the coolant pump.
If +12V is not present on track 2 of the coolant pump, check the following connection for insulation, continuity
and the absence of interference resistance:
Coolant pump track 2 track 6, connector CN, of the Protection and
Switching Unit
Repair if necessary.
If the fault is still present, check the insulation, continuity and the absence of interference resistance on the
following connection:
Computer, connectorB, track L4 track 1 of the coolant pump
Repair if necessary.
If the fault is still present, check that the resistance between tracks 1 and 2 of the coolant pump is neither zero
nor infinite.
Replace the coolant pump if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
S3000_V4C_AC195/S3000_V54_AC195
Page 229 of 230

PETROL INJECTION
Fault finding - Fault Finding Chart
17B
17B-229
PETROL INJECTION
Fault finding - Fault Finding Chart
17B
17B-229V9 MR-372-J84-17B050$940.mif
S3000 Injection
Program No.: AD
Vdiag No.:4C / 54
ALP 3 Idle speed faults
NOTESFollow ALP 3 after a complete check with 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 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.
S3000_V4C_ALP3/S3000_V54_ALP3
Page 230 of 230

PETROL INJECTION
Fault finding - Fault Finding Chart
17B
17B-230
PETROL INJECTION
Fault finding - Fault Finding Chart
17B
17B-230V9 MR-372-J84-17B050$940.mif
S3000 Injection
Program No.: AD
Vdiag No.:4C / 54
ALP 4 Faults occurring while driving
NOTESFollow ALP4 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.
S3000_V4C_ALP4/S3000_V54_ALP4