Page 65 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-65
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-65V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF081
PRESENT
OR
STOREDCANISTER BLEED SOLENOID VALVE CIRCUIT
CO: Open circuit
CC.0: 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:
Apply the procedure for dealing with faults DF046 Battery voltage or DF084
Actuators relay control circuit first if they are present or stored.
CO
CC.1
1.DEF
NOTESSpecial note:
– the valve remains locked shut; there is a smell of petrol,'
–the OBD warning light is lit.
CO.1Special note:
The valve remains locked open: bucking when driving, risk
of stalling and restarting difficulty.
Check that the fuseF8 (10A) is in good condition and is working correctly.
Repair if necessary.
Check the cleanliness and condition of the fuel vapour absorber bleed solenoid valve connections.
Repair if necessary.
Measure the resistance of the fuel vapour absorber bleed solenoid valve.
Replace the fuel vapour absorber bleed solenoid valve if the resistance is not 26Ω ±4Ω at 23°C.
Check for + 12 V on track 1 of the connector of the fuel vapour absorber bleed solenoid valve, with the ignition on.
Use the "Universal bornier" to check the insulation and continuity of the following connections:
Computer, connectorB, track M2 track 1 of the fuel vapour absorber bleed
solenoid valve
Protection and Switching Unit, connectorCN,
track 6
Repair if necessary.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF081/S3000_V54_DF081
Page 66 of 230
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-66
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-66V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF081
CONTINUED
Disconnect the battery.
Disconnect the computer. Check the cleanliness and condition of the connections.
Use the "Universal bornier" to check the insulation and continuity on the following connection:
Computer, connectorC, track E1 track 2 of the petrol vapour absorber bleed
solenoid valve
Repair if necessary.
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 67 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-67
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-67V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF084
PRESENT
OR
STOREDACTUATOR RELAY CONTROL CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CC.1: Short-circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present with the engine running.
Special note:
This relay supplies the following actuators:
– the injectors
– the petrol fuel vapour absorber,
– the injection computer supply on track M2,
– the low-speed and high-speed fan assembly relays.
CO/CC.1: Actuators no longer supplied: the vehicle stalls and restart impossible.
CC.0: The actuators are supplied all the time: high electrical consumption when
stationary.
Intermittent CO: Intermittent relay cut-off: jerking while driving.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the injection actuator relay connections.
Check the cleanliness and condition of the UCH computer connections.
Repair if necessary.
Disconnect connector MN of the Protection and Switching Unit.
Check the cleanliness and condition of its connections.
Use the "Universal bornier" to check the insulation and continuity on the following connection:
Injection computer, connectorB, track D4Protection and Switching Unit, connector MN,
track 5
Repair if necessary.
If the fault is still present, carry out fault finding on the Protection and Switching Unit system (See87G, Engine
interconnection unit).
Contact the Techline.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF084/S3000_V54_DF084
Page 68 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-68
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-68V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF085
PRESENT
OR
STOREDFUEL PUMP RELAY CONTROL 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
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the ignition is switched on or command AC079
Actuator static test is activated.
Special note:
–OBD warning light illuminated.
CO/CC.1: The vehicle stalls and restart impossible
CC.0: Risk of fire in the event of an accident: petrol leak.
Intermittent CO: Intermittent relay cut-off: risk of draining the battery.
If the relay does not click:
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the injection actuator relay connections.
Check the cleanliness and condition of the connections of the fuel pump relay connector.
Repair if necessary.
Disconnect connector MT1 of the Protection and Switching Unit.
Check the cleanliness and condition of its connections.
Use the "Universal bornier" to check the insulation and continuity on the following connection:
Computer, connectorC, track D1Protection and Switching Unit, connector MT1,
track 5
Repair if necessary.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF085/S3000_V54_DF085
Page 69 of 230
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-69
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-69V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF085
CONTINUED
IF THE PUMP DOES NOT OPERATE
Disconnect connector CN of the Protection and Switching Unit.
Check the cleanliness and condition of its connections.
Using command AC079 Actuator static test, check for + 12 V on track 3 of the fuel pump.
If there is not + 12 V, check (using the universal bornier) the insulation and the continuity on the following
connection:
Protection and Switching Unit, connector CN,
track 1Track 3 fuel pump
Repair if necessary.
If the fault is still present, carry out fault finding on the Protection and Switching Unit system (see87G,
Engine interconnection unit).
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.
Page 70 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-70
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-70V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF088
PRESENT
OR
STOREDPINKING SENSOR CIRCUIT
1.DEF: Abnormal voltage
2.DEF: Non-compliance with emission control standards
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present during a road test with a warm engine at an engine speed
above 1500 rpm.
Special note:
The wiring harness connecting the injection computer to the pinking sensor is
"shielded", from this a short circuit to + 12 V is improbable.
Check the cleanliness and condition of the pinking sensor and its connections.
Check the tightness of the pinking sensor.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Use the "Universal bornier" to check the insulation and continuity of the following connections:
Computer, connectorB, track B3 track 2 of the pinking sensor
Computer, connectorB, track B4 track 1of the pinking sensor
Computer, connectorB, track B2Pinking sensor screening
Repair if necessary.
Check the conformity of the fuel in the tank.
Check the conformity of the spark plugs.
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.
S3000_V4C_DF088/S3000_V54_DF088
Page 71 of 230

PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-71
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-71V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF089
PRESENT
OR
STOREDINLET MANIFOLD PRESSURE SENSOR CIRCUIT
1.DEF: Inconsistency of the signal
2.DEF: Abnormal voltage
3.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
Deal with fault DF011 Sensor feed voltage No. 1 as a priority if it is present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the ignition is switched off and back on again, then wait 10 seconds with the engine
running at idling speed.
Special note:
–OBD warning light and level 1 fault warning light comes on,
–Type 5 defect mode: ESP and the cruise control/speed limiter are deactivated and
the vehicle stalls at idle speed.
Check the cleanliness and condition of the manifold pressure sensor and its connections.
Repair if necessary.
If the fault is still present, check for + 5 V on track H2 and for earth on track H4 of connectorB of the injection
computer.
Contact the Techline if it is not correct.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Use the "Universal bornier" to check the insulation and continuity of the following connections:
Injection computer, connectorB, track H2 track C inlet manifold pressure sensor
Injection computer, connectorB, track H3 track B inlet manifold pressure sensor
Injection computer, connectorB, track H4 track A inlet manifold pressure sensor
Repair if necessary.
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.
S3000_V4C_DF089/S3000_V54_DF089
Page 72 of 230
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-72
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-72V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF091
PRESENT
OR
STOREDVEHICLE SPEED SIGNAL
1.DEF: Multiplex network
2.DEF: Non-compliance with emission control standards
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present with the engine running.
Special note:
–OBD warning light illuminated.
Run a multiplex network test (see88B, Multiplexing).
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the battery and the injection computer connections.
Repair if necessary.
If the fault is still present, carry out fault finding on the ABS - ESP system (see38C, Anti-lock braking system).
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF091/S3000_V54_DF091