Page 97 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-97
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-97V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF362
CONTINUED
Check for the + 12 V feed on track 1 of the cylinder 3 pencil coil connector with the ignition on.
If there is no + 12V:
Switch off the ignition,
– disconnect the MN connector in the Protection and Switching Unit,
– check the cleanliness and condition of the connections,
– using the universal bornier, check for continuity on the following connection:
Protection and Switching Unit connector MN,
track 9track 1 of the cylinder 3 pencil coil
Reconnect the Protection and Switching Unit connector.
If the +12V feed is still not present on the connector of the cylinder 3 coil, there is a fault in the Protection and
Switching Unit.
Contact the Techline.
Check the operation of the fuel pump relay using command AC079 Actuator static test.
Deal with fault DF085 Fuel pump relay control circuit if it is present or stored after the command is activated.
If the fault is still present, replace the faulty pencil coil.
If the fault is still present, deal with the other faults then proceed with the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
Page 98 of 230
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-98
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-98V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF377
PRESENT
OR
STOREDPETROL LPG CONNECTION
1.DEF: Multiplex line connection fault
NOTESPriority when dealing with a number of faults:
If fault DF046 Battery voltage is present or stored, deal with this first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present with the engine running.
Run a multiplex network test (See88B, Multiplex).
If the fault is still present, perform fault finding on the LPG Injection system (see17D, LPG Injection).
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF377/S3000_V54_DF377
Page 99 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-99
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-99V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF394
PRESENT
OR
STOREDCATALYTIC CONVERTER OPERATING FAULT
1.DEF: Component in bad condition
2.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
Deal with the other faults first.
There must be no other injection system faults, either present or stored.
– combustion misfiring:
DF059 Combustion misfire in cylinder 1,
DF060 Combustion misfire in cylinder 2,
DF061 Combustion misfire in cylinder 3,
DF062 Combustion misfire in cylinder 4, in 1.DEF or 2.DEF.
Conditions for applying the fault finding procedure to stored faults:
The fault is considered present under the following conditions:
– there must be no further electrical faults,
– programming done,
– warm engine (coolant temperature 75°C minimum),
– engine running at idling speed with all electrical consumers on for approximately
15 minutes.
Special note:
–OBD warning light illuminated.
Check the appearance and condition of the catalytic converter.
Check that there is no air leaking in, heat shock, misfires, consumption of coolant or oil.
If the fault is still present, contact the Techline.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF394/S3000_V54_DF394
Page 100 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-100
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-100V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF398
PRESENT
OR
STOREDFUEL CIRCUIT OPERATING FAULT
1.DEF: Non-compliance with emission control standards
2.DEF: Component in bad condition
NOTESPriority when dealing with a number of faults:
If faults DF085 Fuel pump relay control circuit, DF549 Canister bleed circuit and
injector faults
DF026 Cylinder 1 injector control circuit,
DF027 Cylinder 2 injector control circuit;
DF028 Cylinder 3 injector control circuit,
DF029 Injector control circuit cylinder 4, are present or stored, deal with these first.
Special note:
–the OBD warning light is lit,
– a fuel supply system fault can lead to starting difficulties, and loss of comfort and
power.
Check the cleanliness, condition and fitting of the fuel vapour absorber.
Check the connections and correct operation of the petrol pump.
Check the cleanliness, condition and fitting of the injectors and their sealing.
Repair if necessary.
Check:
– that the fuel is present and correct,
– the tank vent,
– that there are no leaks on the petrol circuit (from the tank to the injectors),
– that there are no kinked hoses (especially after dismantling),
– the fuel flow rate and pressure.
Repair the faulty component(s) if necessary (see MR 364 or 370 Mechanics, 13A, Fuel supply).
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF398/S3000_V54_DF398
Page 101 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-101
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-101V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF404
PRESENT
OR
STORED
AUTOMATIC TRANSMISSION OR SEQUENTIAL GEARBOX CAN
CONNECTION
1.DEF: Incorrect gear
2.DEF: Incorrect torque signal from automatic gearbox computer
3.DEF: No multiplex frames or invalid values (fault on computer transmitting signal
or CAN connection)
NOTESPriority when dealing with a number of faults:
If fault DF046 Battery voltage is present or stored, deal with this first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present with the engine running.
Run a multiplex network test (See88B, Multiplex).
If the fault is still present, run fault finding on the automatic gearbox (see 23A, Automatic gearbox).
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF404/S3000_V54_DF404
Page 102 of 230
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-102
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-102V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF410
PRESENT
OR
STOREDINSTRUMENT PANEL CONNECTION
1.DEF: Multiplex line connection fault
NOTESSpecial note:
– Cruise control/Speed limiter deactivated.
–OBD warning light not illuminated when ignition switched on.
Run a multiplex network test (see88B, Multiplexing).
If the fault is still present, carry out fault finding on the Instrument panel system (see83A, Instrument panel).
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF410/S3000_V54_DF410
Page 103 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-103
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-103V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF436
PRESENT
OR
STOREDDETECTION OF ENGINE MISFIRING
1.DEF: Destructive misfiring
2.DEF: Pollutant misfiring
3.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
– ignition:
DF361 Ignition coil circuit cylinders 1-4,
DF362 Ignition coil circuit cylinders 2-3.
– fuel supply circuit:
DF026 Cylinder 1 injector control circuit,
DF027 Cylinder 2 injector control circuit,
DF028 Cylinder 3 injector control circuit,
DF029 Cylinder 4 injector control circuit,
DF085 Fuel pump relay control circuit.
– flywheel signal:
DF154 Flywheel signal sensor circuit,
DF457 Engine flywheel target.
– cylinder combustion misfires:
DF059 Combustion misfire in cylinder 1,
DF060 Combustion misfire in cylinder 2,
DF061 Combustion misfire in cylinder 3,
DF062 Combustion misfire in cylinder 4.
Conditions for applying the fault finding procedure to stored faults:
The fault is considered present under the following conditions:
– there must be no further electrical faults,
– programming must be carried out.
– engine warm (min 75°C),
– engine running at idling speed with all electrical consumers on for approximately
15 minutes.
Special note:
– catalytic converter misfire: OBD warning light flashes when the fault is present then
is continuously lit,
– pollutant combustion misfire: OBD warning light lit continuously.
– engine unstable, loss of power and vibrations.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF436/S3000_V54_DF436
Page 104 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-104
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-104V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF436
CONTINUED
Check the injectors.
Check the condition and conformity of the spark plugs.
Check the ignition pencil coils.
Check that the correct fuel is being used.
If the fault is still present, carry out the following checks:
– check the flywheel sensor,
– check the condition and cleanliness of the flywheel,
– check the flywheel sensor mounting,
– check the sensor/flywheel air gap,
– check the cylinder compressions,
– check the complete fuel supply system (see Workshop Repair Manual 364 or 370 Mechanics, 13A, Fuel
supply),
– check the complete ignition system (see MR 364 or 370 Mechanics, 17A, Ignition),
– check the hydraulic tappets if there is camshaft noise (see MR 364 or 370 Mechanics, 11A, Top and front of
engine).
If the fault is still present, deal with the other faults then proceed with the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.