PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-96
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-96V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF362
PRESENT
OR
STOREDCYLINDER 2 - 3 IGNITION COIL CIRCUIT
CO.0: Open circuit or short circuit to earth
CC.1: Short-circuit to + 12 V
1.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
Deal with faults DF046 Battery voltage, DF084 Actuator relay control circuit or
DF085 Fuel pump relay control circuit first whether they are present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present with the engine running for 4 seconds at 600 rpm or
0.4 seconds at 6000 rpm.
Special note:
–the OBD warning light is lit,
–level 1 fault warning light illuminated.
CC.0: The coil is continuously supplied, risk of destruction.
CC.1: The coil is not supplied, injection cut-off on cylinders 2 and 3, destruction of the
catalytic converter possible and inhibition of OBD fault finding.
Disconnect the connector from the pencil coils of cylinders 2 and 3.
Check the cleanliness and condition of the pencil coils and their connections.
Repair if necessary.
Measure the primary and secondary resistance of the cylinder 2 pencil coil.
Replace the cylinder 2 coil if the primary resistance is not 540 mΩ ±30mΩ or the secondary resistance is not
10.7 kΩ ± 1.6 kΩ (K4 engines).
Replace the cylinder 2 coil if the primary resistance is not 520 mΩ ±50mΩ or the secondary resistance is not
6.7 kΩ ± 0.67 kΩ (F4 engines).
Switch off the ignition and disconnect the injection computer.
Check the cleanliness and condition of the connections.
Repair if necessary.
Use the "Universal bornier" to check the insulation and continuity of the following connections:
Computer, connectorC, track M3 track 2 of coil 2
Coil 3 track 2 track 1 of coil 2
If the fault is still present, replace the faulty pencil coil.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF362/S3000_V54_DF362
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.
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
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
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.
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-112V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF635
PRESENT
OR
STOREDLPG CYLINDER 1 COMBUSTION MISFIRE
1.DEF: Destructive misfiring
2.DEF: Polluting misfiring
3.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
– LPG fuel system: see 17C, LPG injection,
– ignition:
DF361 Ignition coil circuit cylinders 1-4,
DF362 Ignition coil circuit cylinders 2-3.
– flywheel signal:
DF154 Flywheel signal sensor circuit,
DF457 Engine flywheel target.
Check whether there are other cylinders with an LPG combustion misfire fault detected
by the tool before starting the following fault finding procedure.
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,
– the programming must have been done, particularly the flywheel target,
– engine warm (min 75°C),
– run the engine at idle speed with all electrical consumers switched 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.
Misfiring on
cylinder 1 only
Combustion
misfires on
cylinders 1 and 4
The fault is probably due to a component that can only affect this cylinder:
– check the cylinder 1 pencil coil,
– check the condition and conformity of the spark plugs,
– check the cylinder 1 LPG injector
If everything is in order, check the same components on cylinder 4 (to cover a possible
cylinder recognition error).
The fault is probably due to a component that affects a pair of cylinders:
– check the ignition coil circuit concerned (apply the interpretation of fault DF361
Ignition coil control 1-4 or DF362 Ignition coil control 2-3),
– check the condition and conformity of the spark plugs.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF635/S3000_V54_DF635
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-113V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF636
PRESENT
OR
STOREDLPG CYLINDER 2 COMBUSTION MISFIRE
1.DEF: Destructive misfiring
2.DEF: Polluting misfiring
3.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
– LPG fuel system: see 17C, LPG injection,
– ignition:
DF361 Ignition coil circuit cylinders 1-4,
DF362 Ignition coil circuit cylinders 2-3.
– flywheel signal:
DF154 Flywheel signal sensor circuit,
DF457 Engine flywheel target.
Check whether there are other cylinders with an LPG combustion misfire fault detected
by the tool before starting the following fault finding procedure.
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,
– the programming must have been done, particularly the flywheel target,
– engine warm (min 75°C),
– run the engine at idle speed with all electrical consumers switched 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.
Combustion
misfires in
cylinder 2 only
Combustion
misfires in
cylinders 2 and 3
The fault is probably due to a component that can only affect this cylinder:
– check the cylinder 2 pencil coil,
– check the condition and conformity of the spark plugs,
– check the cylinder 2 LPG injector.
If everything is in order, check the same components on cylinder 3 (to correct a possible
cylinder identification error).
The fault is probably due to a component that affects a pair of cylinders:
– check the ignition coil circuit concerned (apply the interpretation of fault DF361
Ignition coil control 1-4 or DF362 Ignition coil control 2-3),
– check the condition and conformity of the spark plugs.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF636/S3000_V54_DF636
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-114V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF637
PRESENT
OR
STOREDLPG CYLINDER 3 COMBUSTION MISFIRE
1.DEF: Destructive misfiring
2.DEF: Polluting misfiring
3.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
– LPG fuel system: see 17C, LPG injection,
– ignition:
DF361 Ignition coil circuit cylinders 1-4,
DF362 Ignition coil circuit cylinders 2-3.
– flywheel signal:
DF154 Flywheel signal sensor circuit,
DF457 Engine flywheel target.
Check whether there are other cylinders with an LPG combustion misfire fault detected
by the tool before starting the following fault finding procedure.
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,
– the programming must have been done, particularly the flywheel target,
– engine warm (min 75°C),
– run the engine at idle speed with all electrical consumers switched 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.
Combustion
misfires in
cylinder 3 only
Combustion
misfires in
cylinders 2 and 3
The fault is probably due to a component that can only affect this cylinder:
– check the cylinder 3 pencil coil,
– check the condition and conformity of the spark plugs,
– check the cylinder 3 LPG injector.
If everything is in order, check the same components on cylinder 2 (to correct a possible
cylinder identification error).
The fault is probably due to a component that affects a pair of cylinders:
– check the ignition coil circuit concerned (apply the interpretation of fault DF361
Ignition coil control 1-4 or DF362 Ignition coil control 2-3),
– check the condition and conformity of the spark plugs.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF637/S3000_V54_DF637