2011 RENAULT SCENIC wiring

13B-241
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR064
CONTINUED
Sensor electrical conformity.
Check the continuity and absence of interference resistance on the following connections:
– connection code3C,
– connection code 3JK.
Between components 120 and 244.
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.
Measure the resistance between connections 3C and 3JK of component 244.
Replace the sensor if the resistance is not:
11332 Ω < PR064 < 13588 Ω at - 10°C
2140 Ω < PR064 < 2364 Ω at + 25°C
772 Ω < PR064 < 850 Ω at + 50°C
275 Ω < PR064 < 291 Ω at + 80°C
112 Ω < PR064 < 118 Ω at + 110°C
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.

13B-256
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR132
CONTINUED
Sensor electrical conformity.
Test the air inlet circuit (from the air filter inlet to the inlet manifold tracts,
apply test 4 Turbocharged air inlet circuit check):
– air filter unit inlet not blocked and filter not clogged,
–visual inspection only, run test 4 Turbocharged air inlet circuit check for ALP2 Starting difficult or
impossible,
– oil vapour recirculation circuit connected correctly,
–absence of leaks or blockages in the low and high pressure air circuits: ducts, presence and tightness of the
mounting clips, mounting of the turbocharging pressure sensor, intercooler, etc.
– check that the damper valve is not jammed.
Carry out the necessary repairs.
Check the electrical conformity of the air flowmeter:
Check the + 5 V supply to the air flowmeter on connection 3KJ between components 120 and 799.
Check the + 12 V after relay supply to the air flowmeter on connection 3B between components 120 and 799.
Check the continuity and the absence of interference resistance on the following connections:
– connection code 3DV,
– connection code 3DW.
Between components 120 and 799.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
With the flow meter connected, the vehicle ignition on and engine stopped:
Measure the voltage between connections 3DV and 3DW between components 120 and 799.
Replace the air flowmeter if its voltage is not approximately 0.5 V < PR073 Air flowmeter supply voltage < 0.7 V.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-302
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC001
PRE-POSTHEATING UNIT
NOTESThis command is only run if fault DF025 Preheating unit diagnostic line or DF017
Preheating unit control circuit is present or stored and if no other faults are present.
Refer to the Wiring Diagrams Technical Note for the vehicle to locate the fuses and
relays concerned.
Switch on the ignition and connect the diagnostic tool.
with the pre-postheating unit connected:
– connect the negative terminal of the voltmeter to connection 3FF of component 257,
– connect the positive terminal of the voltmeter to the + 12 V battery,
– run command AC001.
If the voltmeter does not indicate the battery voltage while the command is running (ten 1-second ON/OFF
cycles):
1- Check the condition of the preheating unit supply fuse F01 (70A).
Replace it if necessary.
2- Check the continuity and the absence of interference resistance of the following connections:
– connection code 3FF,
– connection code 3FY.
Between components 120 and 257.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Repair if necessary.
3- Check the connections on the preheating unit, heater plugs and injection computer.
Repair if necessary.
4- Measure the resistance of the heater plugs. If this resistance is greater than 2 Ω, replace the faulty plug(s).
5- Check the continuity and the absence of interference resistance between the following connections:
– connection code 37AB,
– connection code 37Z,
– connection code 37AC,
– connection code 37AA.
Between components 257, 680, 681, 682 and 683.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
6- Check for + 12 V on connectionBP35 of component257.
if the fault is still present, replace the preheating unit
EDC16_V50_AC001/EDC16_V58_AC001/EDC16_V5C_AC001/EDC16_V18_AC001/EDC16_V1C_AC001/EDC16_V20_AC001

13B-303
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC004
TURBOCHARGING SOLENOID VALVE
NOTESthis command is used to check the turbocharging circuit.
This command checks that the turbocharger and the control circuit are working properly.
Introduction
1- check the sealing of the high-pressure air circuit:
Pipes not joined or pierced, pressure sensor disconnected or poorly fitted (seal present), intercooler pierced. To
check the intercooler: with the vehicle stopped, stabilise the engine speed between 3500 rpm < X < 4000 rpm
and check that there are no leaks.
Check the resistance of the turbocharging pressure relief solenoid valve between connections 3FB and 3MG.
Replace the solenoid valve if its resistance is not: 14.7 Ω < X < 16.1 Ω at 20°C.
Check the injection computer connections.
Check the continuity and absence of interference resistance of connection 3MG between components 120
and 1475.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check for + 12 V after relay on connection 3FB of component 1475.
2- turbocharger control circuit check
– with the engine stopped, check that the control rod is (in the rest position the control rod is retracted),
– start the engine and check that the control rod disengages and pulls on the turbocharger geometry (when the
engine is stopped, the control rod should return to the rest position).
– if the control rod does not move correctly, carry out the following checks:
1) Vacuum pressure command check:
– Disconnect the solenoid valve inlet hose and connect it to a pressure gauge.
– Start the engine and run it at a stable idle speed.
– if the vacuum is not between 700 mbar < X < 900 mbar, check the vacuum circuit from the vacuum pump.
– Stop the engine, reconnect the inlet hose and go to step no. 2.
2) Solenoid valve control check:
– Disconnect the solenoid valve outlet hose.
– Start the engine and run it at a stable idle speed.
– Place your hand on the solenoid valve and block the outlet union with your thumb.
– If there is no perceptible vibration of the solenoid valve, check that the computer output is working correctly
(step 5) and check solenoid valve operation:
– Connect the pressure gauge to the solenoid valve outlet union.
– Start the engine and run it at a stable idle speed.
if the vacuum is not between 700 mbar < X < 900 mbar, replace the solenoid valve.
EDC16_V50_AC004/EDC16_V58_AC004/EDC16_V5C_AC004/EDC16_V18_AC004/EDC16_V1C_AC004/EDC16_V20_AC004

13B-305
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
*ocr: opening cyclic ratioAC011
RAIL PRESSURE REGULATOR
NOTESthis command is used to check:
– the operation of the pressure regulator,
– and the high pressure injection circuit.
Step 1:
Measure the resistance of the pressure regulator between connections 3HI and 3FB.
- Replace the regulator if its resistance is not 2.5 Ω < X < 3.5 Ω at 20°C.
Check the continuity and absence of interference resistance of the following connections:
– connection code 3HI,
– connection code 3FB.
Between components 120 and 11 0 5.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If, when running command AC011, you can hear a slight whistling noise and a clicking noise from the pressure
regulator, go to step 2. Otherwise, check that the computer output stage is functioning correctly:
→Using a voltmeter:
With the solenoid valve connected, connect the voltmeter earth lead to connection 3HI of component 1105 and
the positive lead to connection 3FB (Laguna II and Mégane II) or 3FB1 (Scénic II). Clear any fuel pressure
solenoid valve faults, then run command AC011:
The voltmeter should display two successive voltages: ~2.5V for an OCR* of 20%, then ~8.75V for an OCR* of
70% (ten cycles)
→Or using an oscilloscope (range 5 V/division and time base 1 ms/division):
With the solenoid valve connected, connect the oscilloscope earth to the battery earth and the positive test pin to
connection 3HI of component 11 05; clear any fuel pressure solenoid valve faults then run command AC011:
The oscilloscope should display a square wave signal of 12.5 V in amplitude at a frequency of 185 Hz (with an
OCR* passing successively from 20 to 70%).
if the measurement is correct, replace the regulator.
If the measurement is not correct, contact the Techline.
EDC16_V50_AC011/EDC16_V58_AC011/EDC16_V5C_AC011/EDC16_V18_AC011/EDC16_V1C_AC011/EDC16_V20_AC011

13B-307
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC012
DAMPER VALVE
NOTESCarry out this interpretation:
–after DF226 Damper valve,
– or after a customer complaint (starting faults, poor performance).
Ignition on and engine stopped.
Check the continuity, insulation and absence of interference resistance on the following connections:
– connection code NT (Laguna II) between component 1461 and the earth NT.
– connection code N (Scénic II and Mégane II) between component 1461 and the earth N.
– connection code 3FB (Laguna II) between components 1461 and 597.
– connection code 3FB2 (Scénic II) between components 1461 and 1337.
– connection code 3FB (Mégane II) between components 1461 and 1337.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check for + 12 V on connection 3FB (Laguna II and Mégane II) or 3FB2 (Scénic II) of component 1461.
Repair if necessary.
Check for earth on connection N (Scénic II and Mégane II) or NT (Laguna II) of component 1461.
Repair if necessary.
Check that the damper valve is open.
If not, clean or replace the air vent unit.
Actuate the valve using command AC012 and check its travel and rest position.
Check the operation of the computer output stage with a voltmeter:
Actuate the valve with command AC012.
If the solenoid valve opens (vacuum pump pressure gauge returns to atmospheric pressure), go to step C.
Otherwise, with the solenoid valve connected, check the operation of the computer output stage with a voltmeter
between connections 3FB (Laguna II and Mégane II) or 3FB2 (Scénic II) and N (Scénic II and Mégane II) or
NT (Laguna II) of component 1461.
The voltmeter should display three ON-OFF cycles (12.5 V then return to 0 V).
If the measurement is correct, replace the damper valve.
If the measurement does not show any operation, contact the Techline.
EDC16_V50_AC012/EDC16_V58_AC012/EDC16_V5C_AC012/EDC16_V18_AC012/EDC16_V1C_AC012/EDC16_V20_AC012

13B-308
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC031
THERMOPLUNGER NO. 3 RELAY
(check that the computer is correctly configured)
NOTESThere must be no present or stored faults.
Perform this fault finding procedure if there is a fault in the command menu, or a
passenger compartment heating/demisting fault.
Refer to the Wiring diagrams Technical Note for the vehicle to locate the fuses and
relays concerned.
vdiag 50, 58, 5C:
If the additional heater no. 3 relay does not operate when running command AC031:
check the engine management computer connections.
Check the connections of thermoplunger no. 3.
Repair if necessary.
Check for + 12 V after ignition supply on connections 3FB and 3JAB of component 1069.
If there is no + 12 V supply, refer to the interpretation of fault DF015 Main relay control circuit.
Repair if necessary.
Check the continuity, absence of interference resistance and insulation to earth of connection 3JAB
between components 120 and 597.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check for + 12 V after ignition supply between connections 3FB and BP9 of component 1069 and connection
3JAC of component 1074.
Measure the resistance of thermoplunger no. 3.
Replace thermoplunger no. 3 if the resistance is greater than 2 Ω.
Replace the water heater interface unit if necessary.
Using a test light, check that the water heater interface unit is properly earthed on connections 3FB and
3JAB between components 120 and 1069.
If the fault is still present, contact the techline.
EDC16_V50_AC031/EDC16_V58_AC031/EDC16_V5C_AC031/EDC16_V18_AC031/EDC16_V1C_AC031/EDC16_V20_AC031

13B-309
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC031
CONTINUED
vdiag 18, 1C, 20:
If the additional heater no. 3 relay does not operate when running command AC031:
Check the additional heater no. 3 relay mounting.
check the engine management computer connections.
Repair if necessary.
if the fault is still present, check as follows that this relay is controlled by the engine management computer:
Disconnect the additional heater no. 3 relay, fit a 50 to 100Ω resistor on the mounting in place of the coil and
connect a voltmeter as follows:
Positive terminal to +12 V battery.
Negative terminal to connection 3JAB of the additional heater no. 3 relay mounting.
Clear the fault and actuate the relay using command AC031.
If the voltmeter shows the battery voltage (two, 2-second ON-OFF cycles), replace the additional heater no. 3
relay.
If the voltmeter does not show the battery voltage (two 2 second ON-OFF cycles), contact the Techline.
If the additional heater no. 3 relay is supplied by command AC031, but there is still a fault with the passenger
compartment heating and demisting, check using a wiring diagram:
– the conformity of the thermoplunger maxi-fuse,
– the presence of + 12 V battery on connection BP9 of the additional heater no. 3 relay mounting,
– the conformity of the additional heater relay 3;
– the continuity between connection 3JAC of the additional heater no. 3 relay mounting and the supply terminal
for thermoplunger no. 3.
– the conformity of the thermoplunger resistance: 0.4 Ω < X < 0.5 Ω at 20 °C,
– the presence of earth at the water chamber (thermoplunger mounting).
Also check the level of the cooling circuit and that there are no leaks.
Carry out the necessary repairs.