pr099 RENAULT SCENIC 2010 J95 / 3.G Petrol Injection S3000 Injection Workshop Manual

Page 127 of 230

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% <PR102 <100%
5
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.

Page 151 of 230

PETROL INJECTION
Fault finding - Conformity check
17B
17B-151
PETROL INJECTION
Fault finding - Conformity check
17B
17B-151V9 MR-372-J84-17B050$517.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
EMISSION CONTROL/OBD SUB-FUNCTION:
NOTESOnly perform this conformity check after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine warm, idling.
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 voltagePR099≈ 480 mVIn 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% <PR102 <100%
5
Oxygen sensorAC018:Upstream O
2 sensor
heatingThe upstream
oxygen sensor
should heat upIn the event of a fault
apply the
interpretation of
DF601 Upstream
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.

Page 202 of 230

PETROL INJECTION
17B
17B - 202
17B
17B - 202V9 MR-372-J84-17B050$658.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54PETROL INJECTION
Fault finding - Parameter summary table
* OCR: Opening Cycle Ratio
* appli.: applicationTool parameter Diagnostic tool title
PR010Idling speed regulation setpoint
PR014Idling speed correction
PR018Estimated air flow
PR030Accelerator pedal position
PR035Atmospheric pressure
PR037Refrigerant pressure
PR055Engine speed
PR058Air temperature
PR064Coolant temperature
PR074Battery voltage
PR089Vehicle speed
PR090Idling speed regulation programming value
PR091OCR* Theoretical idle speed regulation
PR093Camshaft dephaser measured position
PR095Anti-pinking correction
PR096Motorised throttle upper stop programmed value
PR097Motorised throttle lower stop programmed value
PR098Upstream oxygen sensor voltage
PR099Downstream oxygen sensor voltage
PR101Duration of injection
PR102Canister bleed solenoid valve OCR*
PR103Instantaneous fuel consumption
PR105OBD fault warning light lit mileage counter
PR106Mileage counter fault warning light lit
PR111Motorised throttle position corrected value
PR113Throttle lower stop after offset appli.*
PR116Motorised throttle corrected position setpoint
MR-372-J84-17B050$658.mif

Page 210 of 230

PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 210
PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 210V9 MR-372-J84-17B050$705.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
PR099
DOWNSTREAM OXYGEN SENSOR VOLTAGE
NOTESThere must be no present or stored faults.
Check the cleanliness and condition of the downstream oxygen sensor connections.
Repair if necessary.
Disconnect the battery and the injection computer.
Using the Universal bornier, check the insulation and continuity of the following connections:
Injection computer, connectorC, track A2 track C of the downstream oxygen sensor
Injection computer, connectorC, track B2 track D of the downstream oxygen sensor
Repair if necessary.
Check the tightness of the downstream oxygen sensor.
Repair if necessary.
If the vehicle is driven frequently in town, carry out the unclogging procedure (oxygen sensors and catalytic
converter clogging).
Check that the exhaust pipe is completely leak free.
Repair if necessary.
AFTER REPAIRRepeat the conformity check from the start.
S3000_V4C_PR099/S3000_V54_PR099

Page 211 of 230

PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 211
PETROL INJECTION
Fault finding - Interpretation of parameters
17B
17B - 211V9 MR-372-J84-17B050$705.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
PR099
CONTINUED
Replace the downstream oxygen sensor.
If the fault is still present, the catalytic converter is certainly damaged.
If the catalytic converter is defective, determine the cause of the destruction, otherwise the new catalytic
converter may be damaged in turn.
Remove the catalytic converter.
Various things may destroy a catalytic converter:
–deformation (impact),
–thermal shock (cold water splashed onto a hot catalytic converter can damage it),
–defective injector or ignition: the catalytic converter is damaged by contact with fuel (coil fault, coil control fault,
injector jammed open),
–injector leak,
–abnormal oil or coolant consumption (defective cylinder head gasket),
–use of a fuel additive or other equivalent product (obtain information from the customer because this type of
product can contaminate the catalytic converter and render it useless sooner or later).
Look up the service history of the vehicle or, if this is not possible, ask the customer if the vehicle has had injection
or ignition faults.
If the cause of the catalytic converter damage has been found and the fault has disappeared, replace the
catalytic converter.
AFTER REPAIRRepeat the conformity check from the start.