PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-42V12 MR-372-J84-17B000$315.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF061
CONTINUED
Combustion
misfires on all
four cylinders
(see DF060, DF061
and DF062)
The fault is probably due to a component affecting all the cylinders:
– check that the correct fuel is being used,
– check the condition and conformity of the spark plugs.
– Carry out the steps "according to the repair".
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 flywheel/sensor air gap
– check the cylinder compressions,
– check the complete fuel supply system (see Workshop Repair Manual 364 Mechanics, 13A, Fuel supply),
– check the entire ignition system (see MR 364, Mechanics, 17A, Ignition),
– check the hydraulic tappets if there is camshaft noise (seeMR 364 Mechanics, 11A, Top and front of engine).
– Carry out the steps "according to the repair".
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIREnsure that all the faults have been dealt with.
Clear the stored faults. Do not clear the programming.
To check that the system has been properly repaired:
– there must be no further electrical faults,
– programming has been carried out,
– warm engine (minimum 75°C).
– running at idle speed with all electrical consumers drawing power for 15 minutes.
– if the fault is still absent, check that the catalytic converter is in good condition. Use
command SC006 Run OBD Test: Catalytic converter.
JSAA741.0
PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-44V12 MR-372-J84-17B000$315.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF062
CONTINUED
Combustion
misfires on all
four cylinders
(see DF060, DF061
and DF062)
The fault is probably due to a component affecting all the cylinders:
– check that the correct fuel is being used,
– check the condition and conformity of the spark plugs.
– Carry out the steps "according to the repair".
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 flywheel/sensor air gap
– check the cylinder compressions,
– check the complete fuel supply system (see Workshop Repair Manual 364 Mechanics, 13A, Fuel supply),
– check the entire ignition system (see MR 364, Mechanics, 17A, Ignition),
– check the hydraulic tappets if there is camshaft noise (seeMR 364 Mechanics, 11A, Top and front of engine).
– Carry out the steps "according to the repair".
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIREnsure that all the faults have been dealt with.
Clear the stored faults. Do not clear the programming.
To check that the system has been properly repaired:
– there must be no further electrical faults,
– programming has been carried out,
– warm engine (minimum 75°C).
– running at idle speed with all electrical consumers drawing power for 15 minutes.
– if the fault is still absent, check that the catalytic converter is in good condition. Use
command SC006 Run OBD Test: Catalytic converter.
JSAA741.0
PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-45V12 MR-372-J84-17B000$315.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF065
PRESENT
OR
STOREDCOMBUSTION MISFIRES
1.DEF : destructive misfiring
2.DEF : pollutant misfiring
NOTESPriority for dealing with a combination of faults:
– ignition: DF072, DF073, DF074 and DF075.
– fuel supply system: DF026, DF027, DF028, DF029 and DF085.
– engine flywheel signal: DF005 and DF125.
– cylinder misfires: DF059, DF060, DF061 and DF062.
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),
– idling with all the electrical consumers activated for 15 minutes.
Special note:
–OBD warning light illuminated.
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 flywheel/sensor air gap
– check the cylinder compressions,
– check the complete fuel supply system (see Workshop Repair Manual 364 Mechanics, 13A, Fuel supply),
– check the entire ignition system (see MR 364, Mechanics, 17A, Ignition),
– check the hydraulic tappets if there is camshaft noise (seeMR 364 Mechanics, 11A, Top and front of engine).
– Carry out the steps "according to the repair".
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIREnsure that all the faults have been dealt with.
Clear the stored faults. Do not clear the programming.
To check that the system has been properly repaired:
- there must be no further electrical faults,
- programming has been carried out,
- the engine should be warm (minimum temperature 75°C),
- running at idle speed with all the electrical consumers activated for 15 minutes,
- if the fault is still absent, check that the catalytic converter is in working order. Use
command SC006 Run OBD Test: Catalytic converter.
JSAA741.0
PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-51V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF079
PRESENT
OR
STORED
MOTORISED THROTTLE VALVE SERVO
1.DEF : motorised throttle stop search fault
2.DEF : motorised throttle rest position programming error
3.DEF : motorised throttle servo fault
4.DEF : the position memory function does not work
5.DEF : when the throttle bounces off the lower stop, a relatively large permanent
discrepancy can be seen between the set position and actual position of the throttle.
The bounce detection is based on this error. The oscillation fault, after N oscillations
detected, activates the Limp Home defect mode.
6.DEF : when there is a micro-break on gang 1 of the sensor, the voltage delivered
is minimal (0V), which broadly corresponds to complete throttle closure. We can then
see the gang 1 signal lapse in relation to the gang 2 signal, which remains correct.
This lapse speed of one gang in relation to another is used to detect micro-breaks.
The micro-break fault does not activate any defect mode or illuminate any warning
lights.
7.DEF : non-compliance with emission control standards
NOTESPriority for dealing with a combination of faults:
Apply the procedure for dealing with faults DF011 Sensor supply voltage no. 1,
DF078 Throttle potentiometer control circuit, DF095 Throttle potentiometer
circuit gang 1 and DF096 Throttle potentiometer circuit gang 2 first if they are
present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– A change in engine speed.
– the air temperature must be between 5°C and 105°C inclusive.
Special note:
If 1 DEF, 2.DEF or 3.DEF:
– the OBD warning light is lit,
– throttle valve defect mode types 1, 2 and 6.
If 4.DEF or 5.DEF:
– the OBD warning light is lit,
– Throttle valve defect mode types 1, 2, 4 and 6.
Check the cleanliness, condition and fitting of the throttle valve.
Repair if necessary.
If the fault is still present, manually check that the throttle valve rotates correctly.
Repair if necessary.
If the fault is still present, manipulate the harness in order to note a change in fault status (present stored).
Look for possible damage to the wiring harness, check the condition and the connection of the connectors of the
injection computer and motorised throttle valve.
Repair if necessary.
JSAA741.0
PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-53V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF080
PRESENT
OR
STORED
CAMSHAFT DEPHASER CIRCUIT
CO : open circuit
CC.0 : short circuit to earth
CC.1 : short circuit to + 12 V
1.DEF : programming deviation
2.DEF : programming inconsistency
3.DEF : camshaft dephaser position fault
4.DEF : dephaser automatic control outside the limits
5.DEF: non-compliance with emission control standards
NOTESIf faults DF046 or DF084 are present or stored, deal with them first.
If faults DF154 Engine speed sensor circuit, DF119 Camshaft sensor signal and
DF080 are all present, ignore DF080 and deal with the other 2 faults first.
Conditions for applying the fault finding procedure to stored faults:
The fault is considered present after a change in the engine speed.
See Technical Note 6506A, Injection fault finding, camshaft dephaser.
If the fault is still present, contact the Techline.
AFTER REPAIRApply the Stored fault diagnostic application conditions:
– If the fault is present, continue to deal with the fault.
– If the fault is stored, ignore it.
Deal with any other faults.
Clear the stored faults.
S3000_V44_DF080/S3000_V48_DF080JSAA741.0
PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-55V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF082
PRESENT
OR
STOREDUPSTREAM OXYGEN SENSOR HEATING CIRCUIT
CO.0 : open circuit or short circuit to earth
CC.1 : short circuit to + 12 V
NOTESPriority for dealing with a combination of faults:
Deal with faults DF084 Actuator relay control circuit or DF046 Battery voltage first
if they are present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault appears after the engine has been running for a timed period of 10 seconds.
Special note:
–OBD warning light illuminated.
Check the cleanliness and condition of the upstream oxygen sensor connections.
Repair if necessary.
Check for + 12 V feed on track A of the upstream oxygen sensor connector, with the ignition on.
If +12V is not present:
– disconnect the battery,
– disconnect the connector marked PPM1 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 PPM1 connector track A of the upstream oxygen sensor
Repair if necessary.
Reconnect the Protection and Switching Unit connector and reconnect the battery.
If the + 12 V feed is still not present on track A of the upstream oxygen sensor connector with the ignition on,
there is a fault with the Protection and Switching Unit.
Contact the Techline.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Using the Universal bornier, check the insulation and continuity on the following connection:
Computer, connector C, track L2 Track B of the upstream oxygen
sensor
Repair if necessary.
Measure the heating resistance between tracks A and B of the upstream oxygen sensor.
Replace the upstream oxygen sensor if the resistance is not approximately 9 at 20°C.
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
JSAA741.0
PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-56V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF083
PRESENT
OR
STOREDDOWNSTREAM OXYGEN SENSOR HEATING CIRCUIT
CO.0 : open circuit or short circuit to earth
CC.1 : short circuit to + 12 V
NOTESPriority for dealing with a combination of faults:
Deal with faults DF084 Actuator relay control circuit or DF046 Battery voltage first
if they are present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault appears after the engine has been running for a timed period of 10 seconds.
Special note:
–OBD warning light illuminated.
Check the cleanliness and condition of the downstream oxygen sensor connections.
Repair if necessary.
Check for the + 12 V feed on track A of the downstream oxygen sensor connector with the ignition on.
If +12V is not present:
– disconnect the battery,
– disconnect the connector marked PPM1 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 PPM1 connector track A of the downstream oxygen sensor
Repair if necessary.
Reconnect the Protection and Switching Unit connector and reconnect the battery.
If the + 12 V feed is still not present on track A of the downstream oxygen sensor connector with the ignition on,
there is a fault with the Protection and Switching Unit.
Contact the Techline.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Using the Universal bornier, check for insulation and continuity on the following connection:
Computer, connector C, track L3 track B of the downstream oxygen sensor
Repair if necessary.
Measure the heating resistance between tracks A and B of the downstream oxygen sensor.
Replace the downstream oxygen sensor if the resistance is not approximately 9 at 20°C.
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
JSAA741.0
PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-60V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF088
PRESENT
OR
STOREDPINKING SENSOR CIRCUIT
1.DEF : pinking signal fault
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present in a warm engine road test at an engine speed of more
than 2500 rpm.
Special note:
–OBD warning light illuminated.
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.
Using the universal bornier, check for insulation and continuity on the following connections:
Computer, connector B, track B3 Track 2 of the pinking sensor
Computer, connector B, track B4 Track 1 of the pinking sensor
Computer, connectorB, track B2 Shielding of the pinking sensor
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 to the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
JSAA741.0