wiring RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Owner's Guide

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 202V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET703
CRUISE CONTROL/SPEED LIMITER BUTTONS
NOTESSpecial notes:
Carry out these checks if the statuses do not correspond with system operation
programming.
INACTIVEStatus ET703 becomes INACTIVE when none of the cruise control/speed limiter buttons
is pressed. These buttons are located on the steering wheel.
If status ET703 does not display INACTIVE,
- check the condition of the cruise control/speed limiter “+/-” button and the condition of
its connector.
check the condition of the cruise control/speed limiter "R/0" button and the condition of
its connector.
INCREASEStatus ET703 becomes “PLUS” when the cruise control/speed limiter “+” button is
pressed. This button is on the steering wheel, on the left-hand side.
If status ET703 does not display PLUS, check the condition of the cruise control/speed
limiter “+/-” button, and the condition of its connector. Repair if necessary.
To carry out these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see MR 364 (Mégane) or 370
(Scénic), Mechanical, 88C, Airbag and seat belt pretensioners, Driver's front
airbag, Removal - Refitting).
Measure the resistance of the following connections while pressing the + button
(on the button tracks):
●Connection code 86G, of component 331.
●Connection code 86M of component 331.
If the resistance is not approximately 300 Ω, check the continuity of the connection when
the button is in the rest position.
If there is continuity, replace the +/- control button.
If there is a repair method (See Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic tool
EDC16_V51_ET703

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 203V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET703
(CONTINUED 1)
DECREASEStatus ET703 becomes MINUS when the cruise control/speed limiter - button is pressed.
This button is on the steering wheel, on the left-hand side.
If status ET703 does not change to MINUS, check the condition of the cruise control/
speed limiter “+/-” button, and the condition of its connector. Repair if necessary.
To carry out these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see 364 (Mégane) or 370
(Scénic), Mechanical, 88C, Airbag and seat belt pretensioners, Driver's front
airbag, Removal - Refitting).
Measure the resistance of the following connection whilst pressing the - button (on
the button tracks):
●Connection code 86G, of component 331.
●Connection code 86M of component 331.
If the resistance is not approximately 100 Ω, check the continuity of the connection when
the button is in the rest position.
If there is continuity, replace the +/- control button.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring
SUSPENDStatus ET703 becomes “SUSPEND” when the cruise control/speed limiter “0” button is
pressed. This button is located on the steering wheel, to the right.
If status ET703 does not change to SUSPEND, check the condition of the cruise control/
speed limiter “R/0” button, and the condition of its connector.
To carry out these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see 364 (Mégane) or 370
(Scénic), Mechanical, 88C, Airbag and seat belt pretensioners, Driver's front
airbag, Removal - Refitting).
Measure the resistance of the following connection whilst pressing the 0 button
(on the button tracks):
●Connection code 86G, of component 331.
●Connection code 86M of component 331.
If the resistance is not approximately 0Ω, replace the R/0 control button.
If there is continuity, replace the R/0 control button.
If there is a repair method (See Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 204V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET703
(CONTINUED 2)
RESUMEStatus ET703 becomes RESUME when the cruise control/speed limiter R button is
pressed. This button is located on the steering wheel, to the right.
If status ET703 does not become RESUME, check the condition of the cruise control/
speed limiter R/0 button and the condition of its connector. Repair if necessary.
To carry out these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see MR 364 (Mégane) or 370
(Scénic), Mechanical, 88C, Airbag and seat belt pretensioners, Driver's front
airbag, Removal - Refitting).
Measure the resistance of the following connection whilst pressing the R button
(on the button tracks):
●Connection code 86G, of component 331.
●Connection code 86M of component 331.
If the resistance is not approximately 900 Ω, check the continuity of the connection when
the button is in the rest position.
If there is continuity, replace the R/0 control button.
If there is a repair method (See Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 205V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET704
ET705
BRAKE CONTACT No. 1
BRAKE CONTACT No. 2
NOTESSpecial note:
Only perform the tests if the statuses do not correspond with the system programming
functions.
Note:
Statuses ET704 and ET705 should change at the same time. If they are not consistent, refer to the interpretation
of fault DF050 Brake switch circuit.
ACTIVE
or
INACTIVEIf the brake lights are working:
–check the continuity and make sure there is no interference resistance on the
following connection:
●connection code 5A,
between components 160 and 120/645/119.
If there is a repair method (See Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the brake lights are not operational, check:
–the condition and fitting of the brake switch,
–the condition and conformity of the brake lights fuse,
–the conformity of the values in the following table:
disconnect the switch and carry out the following checks:
for MEGANE II and SCENIC II with ESP:
Continuity between
connectionsInsulation between
connections
Switch engaged
(Brake pedal released)5A and BPT 65G and SP17
Switch released
(Brake pedal depressed)65G and SP17 5A and BPT
For MEGANE II and SCENIC II without ESP
Continuity between
connectionsInsulation between
connections
Switch engaged
(Brake pedal released)5A and BPT 65A and SP17
Switch released
(Brake pedal depressed)65G and SP17 5A and BPT
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
EDC16_V51_ET704/EDC16_V51_ET705

DIESEL INJECTION
Fault finding – Interpretation of commands13B
13B -215V3 MR-372-J84-13B250$765.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
AC001
PREHEATING UNIT
NOTESThis command is only carried out if the fault DF025 Preheating unit fault finding
connection, or DF017 Preheating unit control circuit is present or stored and if no
other fault is present.
Refer to the Wiring diagrams Technical Note for the vehicle to locate the fuses and
relays concerned.
Connect the diagnostic tool and turn on the ignition.
With the preheating unit connected:
–connect the negative terminal of the voltmeter to track 8 of the preheating unit,
–connect the positive terminal of the voltmeter to the + 12 V battery,
–run command AC001 Preheating unit.
if the voltmeter does not indicate the battery voltage while the command is running (ten 1 second ON/OFF cycles):
1Check the condition of the preheating unit supply fuse F01 (70A).
Replace it if necessary.
2Check the following connections for continuity and the absence of interference resistance:
Injection computer connector C track E2 track 8 of the preheating unit connector
Injection computer connector C track A4 Track 3 of the preheating unit connector
Repair if necessary.
3Check the connections on the pre-postheating unit, heater plugs and injection computer.
Repair if necessary.
4Measure the resistance of the heater plugs. If this resistance is greater than 2 Ω replace the faulty plug(s).
5Check the continuity and absence of interference resistance between:
preheating unit track 1 cylinder 3 heater plug
preheating unit track 2 cylinder 1 heater plug
preheating unit track 6 cylinder 4 heater plug
preheating unit track 7 cylinder 2 heater plug.
6Then check for + 12 V supply on track 4 of the preheating relay connector.
If the fault is still present, replace the preheating unit.
EDC16_V51_AC001

DIESEL INJECTION
Fault finding – Fault Finding Chart13B
13B -223V3 MR-372-J84-13B250$855.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Fault Finding Chart
ALP1 No dialogue with engine management computer
Try to establish dialogue with a computer on another vehicle to make sure that the diagnostic tool is not faulty.
Check the battery voltage and make the necessary adjustments to obtain a correct voltage (9.5 V < Battery
voltage < 17.5 V).
If the tool is not at fault, and dialogue cannot be established with any other computer on the same vehicle, the cause
could be a faulty computer interfering on the multiplex network.
disconnect the engine management computer.
try to establish dialogue with another computer.
if the fault is still present, reconnect the computer and proceed by elimination by successively disconnecting all the
following computers (according to wiring diagram and equipment): air conditioning, airbag, abs and esp, uch,
instrument panel, central communication unit, proximity sensor.
Try to establish dialogue after disconnecting each line:
if, after a disconnection, you manage to establish dialogue, perform the fault finding procedure for the relevant
computer.
perform fault finding on the multiplex network using the diagnostic tool.
Check for the presence and the condition of the injection fuses on the UPC, and/or the engine fuse box.
check the connection of the computer connectors and the condition of its connections.
Check the injection computer earths (quality, oxidation, earth bolts secure on the battery terminal).
Check that the supply to the computer is correct:
Earth on tracks H1, G4 and H4 of black 32-track connector A.
+ after ignition feed on track D1 of black 32 track connector A.
Check that the power supply to the diagnostic socket is correct:
+ before ignition feed on track 16.
+ after ignition feed on track 1.
Earth on tracks 4 and 5.
If dialogue has still not been established after these checks, contact the techline.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V51_ALP1

DIESEL INJECTION
Fault finding – Fault Finding Chart13B
13B -233V3 MR-372-J84-13B250$855.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
ALP7 Rough idle
NOTESBefore dealing with this customer complaint, check that there are no faults, and
the conformity (or otherwise) of the parameters and statuses using the
diagnostic tool.
If the customer complaint is not eliminated, perform the following checks.
Check the sealing and condition of the inlet circuit: apply test 3 Turbocharged air circuit check.
Check the low pressure circuit: apply test 2 Low pressure circuit check.
check the engine parameters:
–check the update of the engine management computer calibration (last calibration).
–Check the conformity of the IMA codes (using the Identification screen on the Clip diagnostic tool).
–Check the charging circuit (see Technical Note 6014A Checking the charging circuit)
–To ensure the conformity of the engine speed signal, check:
●The wiring.
●The flywheel position and the condition of the flywheel teeth.
●The position and tightness of the engine speed sensor.
–Check the fuel flow correction from station to station: apply Test 8 Incorrect injector operation.
AFTER REPAIRcarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V51_ALP7

DIESEL INJECTION
Fault finding – Fault Finding Chart13B
13B -234V3 MR-372-J84-13B250$855.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
ALP7
CONTINUED
Check the connections and wiring of the injectors.
Check the connections and wiring of the engine management computer to the injectors.
Repair if necessary.
Check the high pressure circuit (external leaks) (see the end of ALP6 Fuel circuit external leaks)
Check the timing setting (and the position of the high pressure pump pinion)
Check the lower engine:
–Check the compressions using the Compression Test on the CLIP diagnostic tool or the special tool.
–Only check the engine stand if there is noise or excessive vibration when idling.
If the checks are correct, contact the Techline.
AFTER REPAIRcarry out a road test followed by a complete check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Test13B
13B -250V3 MR-372-J84-13B250$900.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
TEST5
CONTINUED 2
Visual inspection of the solenoid valve electrical connector
Switch off the engine.
Note:
The requested checks are entirely visual.
1- Check that the connector is correctly connected and locked.
2- Check that the electric wires are not damaged where they leave the insulation.
Disconnect the connector to continue the checks.
3- Check that there is no heat damage to the unit and mechanical damage to the lock.
4- Check that the contacts (clips and tabs) are not deformed.
5- Check the sealing of the connector.
Do the visual inspections highlight any damage?
NO YES
If there is a repair procedure (see Technical
Note 6015A, Electrical wiring repair, Wiring:
Precautions for repair), repair the connector,
otherwise replace the wiring.
After repair, restart the test from the beginning.
C
1

DIESEL INJECTION
Fault finding – Test13B
13B -257V3 MR-372-J84-13B250$900.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
TEST8 Incorrect injector operation
Section A: Fuel regulation balance check for each injector (individual correction):
–In the CLIP diagnostic tool, choose the Fuel circuit subfunction.
–With the engine idling and the fuel temperature > 50˚C, display the flow correction values of each injector
(individual correction), i.e.:
–PR364 Cylinder no. 1 fuel flow correction.
–PR405 Cylinder no. 2 fuel flow correction.
–PR406 Cylinder no. 3 fuel flow correction.
–PR365 Cylinder no. 4 fuel flow correction.
A flow correction value greater than or equal to 5 mg/st absolute value can indicate an injector fault or cylinder
sealing fault.
–If this has not already been carried out, check the injector connections and wiring.
–Check the connections and wiring of the engine management computer to the injectors.
–Repair if necessary.
–Check the IMA injector codes, comparing the IMA codes on the injectors (the IMA codes must be read from left
to right) and the IMA codes read in the CLIP diagnostic tool.
–If the IMA codes are correct, continue the fault finding procedure,
–If not, change the incorrect IMA codes using command SC002 Enter injector codes (see Interpretation of
commands).
To confirm the repair, consult part B of this test.
CASE No. 1: If at least one of the values is greater than or equal to + 5 mg/st
–Check the valve clearance.
–Check the condition of the engine and the compressions (using the Clip diagnostic tool or a compression
gauge).
–If the compression test reveals a cylinder fault, carry out the necessary repairs.
–If the compression is correct, check the fitting conformity of the injector (see MR 364 (Mégane II) or 370 (Scénic
II), 13B, Diesel injection, Diesel injector: Removal - Refitting)
In particular, check that each injector has one compression washer.
Check the fuel regulation again for each injector (individual correction).
–If not, replace the injector and check for the sealing washer. Modify the IMA code using command SC002 Enter
injector codes (see Interpretation of commands).
–Apply Part B of this test to confirm the fault finding.
CASE No. 2: If at least one of the values is less than or equal to - 5 mg/st
–Check the valve clearance.
–Check the level and condition of the engine oil.
–Remove the injector with the largest correction.
–If there is diesel fuel contamination, check the condition of the cylinder concerned (cylinder, piston, valves).
Use an endoscope if possible.
–Only replace the removed injector, and modify the IMA code using command SC002 Enter injector codes
(see Interpretation of commands).
–Apply Part B of this test to confirm the fault finding.
EDC16_V51_TEST8