CONNECTOR A RENAULT SCENIC 2012 J95 / 3.G Engine And Peripherals EDC16CP33 Workshop Manual

Page 448 of 510

13B-448V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC064THERMOPLUNGER No. 2 RELAY
NOTESThere must be no present or stored faults.
Perform this fault finding procedure if there is a fault with the passenger compartment
heating - demisting.
Consult the "Wiring diagrams" Technical Note to locate the relevant fuses and relays.
Special notes:
The thermoplunger no. 2 relay or the additional heater interface unit supplies
thermoplungers 2 and 3 in parallel.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
If the thermoplunger no. 2 relay does not operate during command AC064.
Check the condition of the thermoplunger 2 relay mounting on the engine fuse box or the additional heater
interface unit (see Wiring Diagram Technical Note, Vehicle, component code 1068 or 1550).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Vehicle, component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
if the fault is still present, check as follows that this relay is controlled by the engine management computer:
Disconnect the thermoplunger no. 2 relay, fit a 50 Ω to 100 Ω resistor on its mounting instead of the coil, and
connect a voltmeter as follows:
– positive terminal to + 12 V battery,
– negative terminal on connection 3JAA of component 1068 or 1550.
Run command AC064.
If the voltmeter shows the battery voltage (4 ON-OFF cycles of 10 seconds), replace the thermoplunger no. 2
relay.
If the voltmeter does not show the battery voltage (4 ON-OFF cycles of 10 seconds), contact the Techline.
EDC16CP33_V18_AC064 / EDC16CP33_V1C_AC064 / EDC16CP33_V54_AC064 / EDC16CP33_V20_AC064 / EDC16CP33_V58_AC064 /
EDC16CP33_V5C_AC064 / EDC16CP33_V24_AC064 / EDC16CP33_V04_AC064 / EDC16CP33_V08_AC064 / EDC16CP33_V44_AC064 /
EDC16CP33_V4C_AC064 / EDC16CP33_V34_AC064 / EDC16CP33_V38_AC064 / EDC16CP33_V74_AC064 / EDC16CP33_V28_AC064 /
EDC16CP33_V62_AC064 / EDC16CP33_V26_AC064 / EDC16CP33_V60_AC064
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

Page 452 of 510

13B-452V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
Laguna II ph2, Vel Satis ph2, Espace IV ph2 only.
AC153HIGH SPEED FAN ASSEMBLY
NOTESThere must be no present or stored faults:
Perform this fault finding after an engine cooling fault.
Engine stopped.
Use the Wiring Diagram Technical Note for Laguna II ph2, Vel Satis ph2, Espace
IV ph2.
If command AC153 does not actuate the high speed fan assembly relay.
Check the condition of the high speed fan assembly relay mounting connectors (see Wiring Diagram
Technical Note, Vehicle, component code 597).
If the connector or connectors are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
If the fault is still present, check that the relay is actuated by the engine management computer as follows:
Disconnect the high speed fan assembly relay, fit a 50 Ω to 100 Ω resistor on its mounting in place of the coil, and
connect a voltmeter as follows:
– positive terminal to + 12 V battery,
– negative terminal to connection 3JP of component 234.
Run command AC153.
If the voltmeter shows the battery voltage (4 ON-OFF cycles of 10 seconds), replace the relay.
If the voltmeter does not show the battery voltage (4 ON-OFF cycles of 10 seconds), contact the Techline.
If the high speed fan assembly relay is supplied using command AC153, but there is still a fan assembly
actuation fault, use the wiring diagram to check:
The conformity of the fan assembly maxi-fuse.
– Check the + 12 V battery supply to connection BP71 of component 234.
– Check the conformity of the high speed fan assembly relay.
– Check the continuity of connection 49B between components 234 and 362.
– Check the conformity of the fan assembly.
– Check for complete earthing on connection MAS of component 162.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
EDC16CP33_V18_AC153 / EDC16CP33_V1C_AC153 / EDC16CP33_V54_AC153 / EDC16CP33_V20_AC153 / EDC16CP33_V58_AC153 /
EDC16CP33_V5C_AC153 / EDC16CP33_V24_AC153 / EDC16CP33_V04_AC153 / EDC16CP33_V08_AC153 / EDC16CP33_V44_AC153 /
EDC16CP33_V4C_AC153 / EDC16CP33_V34_AC153 / EDC16CP33_V38_AC153 / EDC16CP33_V74_AC153 / EDC16CP33_V28_AC153 /
EDC16CP33_V26_AC153
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

Page 453 of 510

13B-453V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
Laguna II ph2, Vel Satis ph2, Espace IV ph2 only.
AC154LOW-SPEED FAN ASSEMBLY
NOTESThere must be no present or stored faults.
Perform this fault finding after an engine cooling fault or air conditioning fault.
Engine stopped.
Use the Wiring Diagram Technical Note for Laguna II ph2, Vel Satis ph2, Espace
IV ph2.
If, when running command AC154, the low speed fan assembly relay does not operate:
Check the condition of the low speed fan assembly relay mounting connectors (see Wiring Diagram Technical
Note, Vehicle, component code 597).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
If the fault is still present, check that the relay is actuated by the engine management computer as follows:
Disconnect the low speed fan assembly relay, fit a 50 Ω to 100 Ω resistor on the relay mounting in place of the
coil, and connect a voltmeter as follows:
– positive terminal to + 12 V battery,
– negative terminal to connection 3JN of component 700.
Run command AC154.
If the voltmeter shows the battery voltage (4 ON-OFF cycles of 10 seconds), replace the relay.
If the voltmeter does not show the battery voltage (4 ON-OFF cycles of 10 seconds), contact the Techline.
If the low speed fan assembly relay is supplied using command AC154, but there is still a fan assembly actuation
fault, use the wiring diagram to check:
The conformity of the fan assembly maxi-fuse.
– Check the continuity of connection 49L between components 700 and 321.
– Check the low speed resistor (resistance and connections).
– Check the continuity of connection 49B between components 262 and 321.
– Check for complete earthing on connection MAS of component 162.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
EDC16CP33_V18_AC154 / EDC16CP33_V1C_AC154 / EDC16CP33_V54_AC154 / EDC16CP33_V20_AC154 / EDC16CP33_V58_AC154 /
EDC16CP33_V5C_AC154 / EDC16CP33_V24_AC154 / EDC16CP33_V04_AC154 / EDC16CP33_V08_AC154 / EDC16CP33_V44_AC154 /
EDC16CP33_V4C_AC154 / EDC16CP33_V34_AC154 / EDC16CP33_V38_AC154 / EDC16CP33_V74_AC154 / EDC16CP33_V28_AC154 /
EDC16CP33_V26_AC154
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

Page 454 of 510

13B-454V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
ac195electric coolant pump
NOTESthis command allows you to check the operation of the electric coolant pump.
Check the connection and condition of the coolant pump relay connector, component code 573 and the injection
computer connector, component code 120.
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
Check the insulation, continuity and the absence of interference resistance on the following connections:
•3AAZ between components 573 and 120,
•3VH between components 573 and 369,
•3FB between components 573 and 983,
•3FB1 between components 573 and 983.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, contact the techline.
EDC16CP33_V18_AC195 / EDC16CP33_V1C_AC195 / EDC16CP33_V54_AC195 / EDC16CP33_V20_AC195 / EDC16CP33_V58_AC195 /
EDC16CP33_V5C_AC195 / EDC16CP33_V24_AC195 / EDC16CP33_V28_AC195 / EDC16CP33_V62_AC195 / EDC16CP33_V26_AC195 /
EDC16CP33_V60_AC195
EEDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

Page 468 of 510

13B-468V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
VP036INHIBIT FUEL SUPPLY
NOTESThis command enables you to disable the supply to the injectors.
This command is carried out with the engine switched off, and ignition on.
This command allows the injectors to be locked, so that starting is not possible.
Command VP036 allows the engine compressions to be checked in complete safety without disconnecting the
connectors of the injectors or the TDC sensor.
Procedure to follow (cylinder no. 1 is located on the timing end):
– Remove all of the heater plugs, connect the compression gauge with the M9R flexible end piece, part no.
MOT 1772, to a cylinder.
– Position the gear lever in neutral (manual gearbox) or to position P (automatic/sequential gearbox).
– Depress the brake pedal and keep it in this position throughout the test.
– Activate command VP036.
– Attempt to start the vehicle (within 10 seconds of activating command VP036).
If the vehicle does not start, check the cylinder compressions.
Start the procedure again on another cylinder.
WARNING:
Keep the brake pedal depressed for the length of the test.
This command is inhibited automatically after 10 seconds.
EDC16CP33_V18_VP036 / EDC16CP33_V1C_VP036 / EDC16CP33_V54_VP036 / EDC16CP33_V20_VP036 / EDC16CP33_V58_VP036 /
EDC16CP33_V5C_VP036 / EDC16CP33_V24_VP036 / EDC16CP33_V04_VP036 / EDC16CP33_V08_VP036 / EDC16CP33_V44_VP036 /
EDC16CP33_V4C_VP036 / EDC16CP33_V34_VP036 / EDC16CP33_V38_VP036 / EDC16CP33_V74_VP036 / EDC16CP33_V28_VP036 /
EDC16CP33_V62_VP036 / EDC16CP33_V26_VP036 / EDC16CP33_V60_VP036
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

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