PETROL INJECTION
Fault finding - Fault summary table
17B
17B-33
PETROL INJECTION
Fault finding - Fault summary table
17B
17B-33V9 MR-372-J84-17B050$282.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
Tool faultAssociated
DTC codeDescriptionLevel 2 fault
warning light
(Red brake
warning light)Level 1 fault
warning light
(Orange
injection
warning light)No warning
light onOBD
warning light
DF404 C302Automatic gearbox
or sequential
gearbox CAN
connection1.DEF/2.DEF/
3.DEF
DF410 C155Instrument panel
connection1.DEF
DF436 0300Detection of engine
misfiring1.DEF/
2.DEF
3.DEF
DF455 0460Low fuel level
signal1.DEF/2.DEF
DF457 0315 Flywheel target1.DEF/
2.DEF
DF570 2600COOLANT PUMP
RELAYCO/CC.0
CC.1
DF601 0135Upstream O
2
sensor heating
power circuitCO.0/CC.1
1.DEF
DF602 0141Downstream O
2
sensor heating
power circuitCO.0/CC.1
1.DEF
DF623 C315Closing brake
signal1.DEF
DF624 C111UPC multiplex
connection1.DEF
2.DEF
DF635 1301LPG cylinder 1
combustion misfire1.DEF
2.DEF
DF636 1302LPG cylinder 2
combustion misfire1.DEF
2.DEF
DF637 1303LPG cylinder 3
combustion misfire1.DEF
2.DEF
DF638 1304LPG cylinder 4
combustion misfire1.DEF
2.DEF
DF639 1300Combustion misfire
in LPG mode1.DEF
2.DEF
3.DEF
DF650 2299Accelerator pedal
position signal1.DEF
DF1070 0534 Cold loop
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-74
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-74V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF093
PRESENT
OR
STOREDDOWNSTREAM OXYGEN SENSOR 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:
If faults DF011 Sensor feed voltage no. 1,
DF046 Battery voltage,
DF601 Upstream oxygen sensor heating power circuit,
DF084 Actuator relay control circuit,
are present or stored, deal with these first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– a road test driving smoothly after the fan unit has been running, and ET056 Double
richness loop is ACTIVE,
– a smooth driving road test after the fan assembly has been in operation, immediately
followed by a road test on a slope at no load (injection cut-off in the deceleration
phase).
Special note:
–OBD warning light illuminated.
Check the cleanliness and condition of the downstream oxygen sensor connections.
Repair if necessary.
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, connector C, track B2 track D of the downstream oxygen sensor
Computer, connector C, track A2 track C of the downstream oxygen 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_DF093/S3000_V54_DF093
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-85
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-85V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF126
PRESENT
OR
STOREDPASSENGER COMPARTMENT HEATING RESISTOR
1.DEF: Multiplex network
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present when the ignition is switched on.
Run a multiplex network test (see 88B, Multiplexing).
If the fault is still present, carry out fault finding on the UCH (see87B, Passenger compartment connection unit).
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.
S3000_V4C_DF126/S3000_V54_DF126
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-108
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-108V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF601
PRESENT
OR
STOREDUPSTREAM O2 SENSOR HEATING POWER 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:
Apply the procedure for dealing with faults DF046 Battery voltage or DF084
Actuators relay control circuit first if they are present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after a delay of 10 seconds with the engine running or
when command AC018 Upstream O2 sensor heating is activated.
Special note:
–OBD warning light illuminated.
CO/CC.1: Upstream O
2 sensor heating no longer working.
CO.1: Upstream O
2 sensor heating on permanently as soon as the ignition is switched
on: risk of irreparable damage to the sensor.
Check the cleanliness and condition of the upstream oxygen sensor connections.
Repair if necessary.
With the ignition on, check for + 12 V on track A of the upstream oxygen sensor connector.
Use the "Universal bornier" to check the insulation and continuity on the following connection:
Computer, connectorB, track M2 track A of the upstream oxygen sensor
Repair if necessary.
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 on the following connection:
Computer, connectorC, 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 9Ω ± 0.5Ω at 20°C.
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_DF601/S3000_V54_DF601
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-109
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-109V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF602
PRESENT
OR
STOREDDOWNSTREAM O2 SENSOR HEATING POWER 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:
Apply the procedure for dealing with faults DF046 Battery voltage or DF084
Actuators relay control circuit first if they are present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after a delay of 10 seconds with the engine running or
when command AC019 Downstream O2 sensor heating is activated.
Special note:
–OBD warning light illuminated.
CO/CC.1: Downstream O
2 sensor heating no longer working.
CO.1: Downstream O
2 sensor heating on permanently as soon as the ignition is
switched on: risk of irreparable damage to the sensor.
Check the cleanliness and condition of the downstream oxygen sensor connections.
Repair if necessary.
Check for + 12 V on track A of the downstream oxygen sensor connector with the ignition on.
Use the "Universal bornier" to check the insulation and continuity on the following connection:
Computer, connectorB, track M2 track A of the downstream oxygen sensor
Repair if necessary.
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 on the following connection:
Computer, connector C, track L3 track Bof 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 9Ω ± 0.5Ω at 20°C.
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_DF602/S3000_V54_DF602
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-119
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-119V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF1070
PRESENT
COLD LOOP
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present with the engine running and with a heating and air
conditioning system request.
Priorities when dealing with a combination of faults:
Deal with fault DF232 Refrigerant pressure sensor circuit first if it is present or
stored
When the fault is present or stored, the heating and air conditioning system is inhibited.
Check fuse F22 (10A) of the UPC and the condition of the air conditioning compressor connector.
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the air conditioning compressor wiring.
If the wiring is faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Manually check whether the compressor is jammed (turn the clutch plate manually to check that there is no point
of resistance). In the event of sticking, replace the air conditioning compressor (see MR 364 (Mégane II) or 370
(Scénic II), Mechanical, Heating and air conditioning system, 62A, Air conditioning, Compressor:
Removal - Refitting).
Top up with freon, check for any leaks and repair if necessary (see MR 364 (Mégane II) or 370 (Scénic II),
Mechanical, Heating and air conditioning system, 62A, Air conditioning, Refrigerant circuit: checks,
Refrigerant circuit: Draining - Filling).
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
S3000_V4C_DF1070P/S3000_V54_DF1070P
PETROL INJECTION
Fault finding - Conformity check
17B
17B-127
PETROL INJECTION
Fault finding - Conformity check
17B
17B-127V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
EMISSION CONTROL/OBD SUB-FUNCTION:
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
1
Oxygen sensorPR098:Upstream oxygen
sensor voltage50 mV < PR098
<800mVIn the event of a fault,
apply the
interpretation of
PR098 Upstream
oxygen sensor
voltage.
2 PR099:Downstream oxygen
sensor voltage50 mV < PR099
<800mVIn the event of a fault,
apply the
interpretation of
PR099 Downstream
oxygen sensor
voltage.
3
CanisterET050:Canister bleed
controlINACTIVEIn the event of a fault,
apply interpretation of
DF549 Canister
bleed circuit. 4 PR102:Canister bleed
solenoid valve OCR0%
Oxygen sensorAC018:Upstream O
2 sensor
heatingThe upstream
oxygen sensor
should heat upIn the event of a fault,
apply interpretation of
DF601 Oxygen
sensor heating
power circuit.
6AC019:Downstream O
2
sensor heatingThe downstream
oxygen sensor
should heat upIn the event of a fault,
apply interpretation of
DF602 Downstream
oxygen sensor
heating power
circuit.
PETROL INJECTION
Fault finding - Conformity check
17B
17B-128
PETROL INJECTION
Fault finding - Conformity check
17B
17B-128V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
EMISSION CONTROL / OBD SUBFUNCTION (cont.):
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
7
Oxygen sensorET052:Upstream O
2 sensor
heatingINACTIVEIn the event of a fault
apply the interpretation of
DF601 Upstream
oxygen sensor heating
power circuit.
8ET053:Downstream O
2
sensor heatingINACTIVEIn the event of a fault,
apply interpretation of
DF602 Downstream
oxygen sensor heating
power circuit.
9CanisterAC017:Canister bleed
solenoid valveThe canister
bleed solenoid
valve should be
heard running.In the event of a fault,
apply interpretation of
DF549 Canister bleed
circuit.
10
Fault findingET617:Upstream oxygen
sensor OBD fault
findingINACTIVE None
11 ET619:Fuel circuit OBD fault
findingINACTIVE None
12 ET581:Petrol combustion
misfire fault findingINACTIVE None
13 Fault finding ET340:Request by automatic
transmission to light
up the OBD warning
lightINACTIVEIf ACTIVE, apply the
interpretation of fault
DF099 Automatic
gearbox or sequential
gearbox connection via
the multiplex network.
14
RichnessET300:Richness regulationACTIVE
INACTIVEWITHOUT
15 ET056:Richness double loopACTIVE
INACTIVEIn the event of a fault,
apply the interpretation of
ET056 Double richness
loop.