2012 RENAULT SCENIC wiring

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.

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.

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.

13B-455V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC225RAIL PRESSURE REGULATOR
NOTESPerform this fault finding procedure:
– following interpretation of an unresolved fault
– following an inconsistency recorded in the parameters,
– following a customer complaint (starting problems, engine speed instability, injection
noise).
STEP 1
Check the continuity and absence of interference resistance on the following connection:
•3RG between the components 120 and 1198.
Check the + 12 V after relay supply to the rail pressure regulator (DRV) of the following connection:
•3FB of component 1198.
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.
Run command AC225, if you can hear a slight whistling noise and rattling from the pressure regulator, go to step
2, otherwise, check the operation of the computer output stage:
Vehicle under + after ignition feed, clear the faults displayed by the diagnostic tool.
With the voltmeter in the direct current position:
With the rail pressure regulator connected, connect the voltmeter earth lead to connection3RG of
component1198 and the positive lead to connection3FB of component1198. Run command AC225, the
voltmeter should display four successive voltages between 2 V and 2.4 V.
If the measurement is not correct, contact the Techline.
STEP 2
EDC16CP33_V18_AC225 / EDC16CP33_V1C_AC225 / EDC16CP33_V54_AC225 / EDC16CP33_V20_AC225 / EDC16CP33_V58_AC225 /
EDC16CP33_V5C_AC225 / EDC16CP33_V24_AC225 / EDC16CP33_V04_AC225 / EDC16CP33_V08_AC225 / EDC16CP33_V44_AC225 /
EDC16CP33_V4C_AC225 / EDC16CP33_V34_AC225 / EDC16CP33_V38_AC225 / EDC16CP33_V74_AC225 / EDC16CP33_V28_AC225 /
EDC16CP33_V62_AC225 / EDC16CP33_V26_AC225 / EDC16CP33_V60_AC225
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.

13B-457V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC226PUMP PRESSURE REGULATOR
NOTESPerform this fault finding procedure:
– following interpretation of an unresolved fault
– following an inconsistency recorded in the parameters,
– following a customer complaint (starting problems, engine speed instability, injection
noise).
STEP 1
Check the continuity and absence of interference resistance on the following connection:
•3HI between the components 120 and 1105.
Check the + 12 V after relay supply to the pump pressure regulator (MPROP) of the following connection:
•3FB of component 1105.
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.
Run command AC226, if you can hear a slight whistling noise and rattling from the pressure regulator, go to step
2, otherwise, ensure that the computer output stage is functioning correctly:
Vehicle under + after ignition feed, clear the faults displayed by the diagnostic tool.
With the voltmeter in the direct current position:
With the pump pressure regulator connected, connect the voltmeter earth lead to connection3HI of
component1105 and the positive lead to connection3FB of component1105. Run command AC226, the
voltmeter must display four successive voltages between 2 V and 2.4 V.
If the measurement is not correct, contact the Techline.
STEP 2
EDC16CP33_V18_AC226 / EDC16CP33_V1C_AC226 / EDC16CP33_V54_AC226 / EDC16CP33_V20_AC226 / EDC16CP33_V58_AC226 /
EDC16CP33_V5C_AC226 / EDC16CP33_V24_AC226 / EDC16CP33_V04_AC226 / EDC16CP33_V08_AC226 / EDC16CP33_V44_AC226 /
EDC16CP33_V4C_AC226 / EDC16CP33_V34_AC226 / EDC16CP33_V38_AC226 / EDC16CP33_V74_AC226 / EDC16CP33_V28_AC226 /
EDC16CP33_V62_AC226 / EDC16CP33_V26_AC226 / EDC16CP33_V60_AC226
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.

13B-462V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
MT001
CONTINUED 3
Fault finding procedure Monitool no. 1:
– Check the fitting of the air flowmeter (direction of fitting to be observed).
– Check the tightness of the different air flowmeter clips.
– Check the + 5 V supply of connection 3KJ of component 799.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
– Check that there are no air leaks between the air flowmeter and the turbocharger.
– Run Test 5 Air flowmeter: check that there is no dust on the sensors.
If the checks do not reveal any non-conformity and the fault is still present, change the air flowmeter. Attach a
screen copy of the Monitool results.
Monitool no. 2 fault finding procedure:
– Measure the internal resistance of the turbocharger control solenoid valve by applying the interpretation of
DF054 Turbocharging solenoid valve control circuit.
– Check the connection of all the air hoses and the tightness of the clips.
– Check the condition of the air filter and replace it if necessary.
– Check that the exhaust pipe is not clogged, run Test 1 Exhaust pipe check.
–Apply Test 7 Variable geometry turbocharger control.
– Check that there are no leaks around the exhaust manifold.
– Check that there is no clogging obstructing the air refrigerant.
– Check that there are no air leaks on the engine (compression test).
If the checks do not reveal any non-conformity and the fault is still present, replace the turbocharger. Attach a
screen copy of the Monitool results.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 44
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-463V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
MT001
CONTINUED 4
Monitool no. 3 fault finding procedure:
– Check the + 5 V supply of connection 3KJ of component 799.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
– Run Test 5 Air flowmeter: check that there is no dust on the sensors.
If the checks do not reveal any non-conformity and the fault is still present, change the air flowmeter. Attach a
screen copy of the Monitool results.
Monitool no. 4 fault finding procedure:
– Check that there are no air leaks between the turbocharger and the inlet manifold.
– Check the tightness of the different clips.
– Check that there are no air refrigerant leaks.
If the checks do not reveal any non-conformity and the fault is still present, change the turbocharging pressure
sensor. Attach a screen copy of the Monitool results.
Monitool no. 5 fault finding procedure:
– Check the turbocharging pressure sensor by interpreting the conformity check for PR041 Turbocharging
pressure.
If the checks do not reveal any non-conformity and the fault is still present, change the turbocharging pressure
sensor. Attach a screen copy of the Monitool results.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 44
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-467V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
MT001
CONTINUED 8
Monitool no. 7 fault finding procedure:
– Check the fitting of the air flowmeter (direction of fitting to be observed).
– Check the tightness of the different air flowmeter clips.
– Check the + 5 V supply of connection 3KJ of component 799.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
– Check that there are no air leaks between the air flowmeter and the turbocharger.
– Run Test 5 Air flowmeter: check that there is no dust on the sensors.
If the checks do not reveal any non-conformity and the fault is still present, change the air flowmeter. Attach a
screen copy of the Monitool results.
Monitool no. 8 fault finding procedure:
– Measure the internal resistance of the turbocharger control solenoid valve by applying the interpretation of
DF054 Turbocharging solenoid valve control circuit.
–Apply Test 7 Variable geometry turbocharger control.
If the checks do not reveal any non-conformity and the fault is still present, replace the turbocharger. Attach a
screen copy of the Monitool results.
If all the checks do not allow the vehicle to be repaired, contact the Techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 44
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.