fuse RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual

DIESEL INJECTION
Fault finding – Introduction13B
13B - 4V3 MR-372-J84-13B250$045.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
4. FAULT FINDING PROCEDURE
Perform a pre-diagnostic on the
system*
Print the system fault finding log
(available on CLIP and in the
Workshop Repair Manual or
Technical Note)
Connect CLIP
no
Dialogue with
computer?
yes
Read faults
no
Faults
present
yes
Deal with present faults
Deal with stored faults
no
The cause is
still presentFault
solved
yes
Refer to ALP No. 1
Conformity check
no
The cause is
still presentFault
solved
yes
Use fault finding charts
(ALPs)
no
The cause is
still presentFault
solved
yes
Contact the Techline with the
completed fault finding log
* Check the battery charge, the condition of the fuses and
the level in the tank.

DIESEL INJECTION
Fault finding – Introduction13B
13B - 5V3 MR-372-J84-13B250$045.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
FAULT FINDING PROCEDURE (continued)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring harness may temporarily remove the cause of a fault.
Electrical measurements of voltage, resistance and insulation are generally correct, especially if the fault is not
present when the analysis is made (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Tactile inspection
While manipulating the wiring harness, use the diagnostic tool to note any change in fault status from stored to
present.
Make sure that the connectors are properly locked.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as the crimping (no crimping on
the insulating section).
Make sure that the clips and tabs are properly locked in the sockets.
Check that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or to another wire.
If a fault is detected, repair or replace the wiring harness.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-53V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF015
PRESENT
OR
STOREDMAIN RELAY control CIRCUIT
1.DEF : Relay cut off too soon
2.DEF : Relay cut off too late
NOTESConditions for applying the fault finding procedure to stored faults:
Only deal with this fault if it is stored.
Special notes:
The injection control unit supply relay (50A) is located on the relay plate in the
engine connection unit, under the Protection and Switching Unit.
If the fault is present, the level 1 warning light is lit.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
Check the Protection and Switching Unit connections.
Check the injection computer connections.
Repair if necessary.
Check the condition of the battery terminals making sure they are correctly tightened.
Check the condition of the injection supply relay and its mounting.
Check the 5D (5A) + after ignition feed injection fuse located on the UPC.
Repair if necessary.
Check the continuity, and absence of interference resistance of the following connection:
Injection computer brown 48-track connector B
track E1Track 2 injection supply relay mounting
Repair if necessary.
If the fault is still present, contact the Techline.
IMPORTANT!WARNING
If the UPC does not detect the injection computer frames the engine fan assembly 1
will be switched on until the battery is completely discharged.
In the event that engine cooling fan 1 is not working, GMV 2 will be supplied.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF015

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-54V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF017
PRESENT
OR
STOREDPRE-POSTHEATING UNIT CONTROL CIRCUIT
CC.1 : Short circuit to + 12 V
CC.0 : Open circuit or short circuit to earth
CO : Open circuit
1.DEF : Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after attempting to start the engine several times or after
an actuator command AC001 Preheating unit.
Special notes:
If the fault is present, it is difficult or even impossible to start the vehicle when cold.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
CC.1
NOTESNone
Check the pre-postheating unit connections and the heating plug supply cables.
Check the injection computer connections.
Repair if necessary.
Check the condition of the F2 (70A) supply fuse on the power supply fuse board.
Check the continuity and insulation against + 12 V of the following connections:
Injection computer grey 32-track connector C, track E2 Track 8 preheating unit
Injection computer grey 32-track connector C, track A4 Track 3 preheating unit
Repair if necessary.
If the fault is still present, replace the pre-postheating unit.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF017

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-55V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF017
CONTINUED
CC.0
CO
NOTESSpecial notes: If the preheating unit is short circuited to
earth, there is a possibility that the plugs will be permanently
activated.
The heater plugs and the engine may be damaged.
Check the pre-postheating unit connections and the heating plug supply cables.
Check the injection computer connections.
Repair if necessary.
Check the condition of the F2 (70A) supply fuse on the power supply fuse board.
Check the continuity and insulation to earth of the following connections:
Injection computer grey 32-track connector C, track A4 Track 3 preheating unit
Injection computer grey 32-track connector C, track E2 Track 8 preheating unit
Repair if necessary.
If the fault is still present, replace the pre-postheating unit.
1.DEF
NOTESNone
Check the pre-postheating unit connections and the heating plug supply cables.
Check the injection computer connections.
Repair if necessary.
Check the condition of the F2 (70A) supply fuse on the power supply fuse board.
Check the continuity and insulation to earth of the following connections:
Injection computer grey 32-track connector C, track A4 Track 3 preheating unit
Injection computer grey 32-track connector C, track E2 Track 8 preheating unit
Repair if necessary.
If the fault is still present, replace the pre-postheating unit.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-56V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF025
PRESENT
OR
STOREDPRE-POSTHEATING UNIT DIAGNOSTIC LINE
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after several attempts to start the engine, or following
actuator command AC001 Preheating unit.
Special notes:
It is difficult or even impossible to start the engine when cold.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
Check the pre-postheating unit connections.
Check the connections on all the heater plugs.
Repair if necessary.
Check fuse F2 (70A) on the power supply fuse board.
Check the resistance of the heater plugs:
Replace any plug whose resistance is not below 2 Ω at + 20˚C.
Check the continuity and absence of interference resistance of the following connections:
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.
Check for presence of + 12 V on track 4 of the pre-postheating unit (via fuse F2, 70A).
If the fault is still present,
Check the injection computer connections.
Check the following connections for continuity and make sure there is no extraneous resistance:
Injection computer grey 32-track connector C, track A4 track 3 preheating unit connector
Injection computer grey, 32-track connector C, track E2 track 8 of the preheating unit connector
If the fault is still present, replace the pre-postheating unit.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF025

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-72V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF047
PRESENT
OR
STOREDCOMPUTER SUPPLY VOLTAGE
1.DEF : Voltage outside permitted range of values
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after several starting attempts, or with the engine running.
Special notes:
Computer operating voltage: 9 V < operating voltage < 16 V.
Battery voltage that is too low can cause the level 1 fault warning light to come on
thereby causing other faults to appear.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
Check continuity and make sure there is no interference resistance on the following connection:
injection computer black 32-track connector A, track D1 track 1 UPC black connector
Repair if necessary.
Check fuse F5D (5A) located on the UPC.
Check the condition of the injection control unit supply relay (50A) located on the relay plate in the engine
connection unit under the Protection and Switching Unit (no false contacts, or oxidation on the relay mounting
clips).
Repair if necessary.
If the fault does not recur, start the engine and wait 1 min.
Carry out a road test and check the system faults.
If there are no faults, fault finding is complete.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF047

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-76V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF050
CONTINUED
Replace the switch if necessary.
Check the condition of fuse H 15A on the passenger compartment fuse and relay plate.
Replace the fuse if necessary.
Check the feeds to the switch:
+ 12 V after ignitiontrack 2 of the brake pedal switch connector
+ 12 V battery feedtrack 4 of the brake pedal switch connector
(via the UCH)
Replace the switch if necessary.
Check the continuity and insulation of the following connections:
Injection computer black 32-track
connector A, track E4Track 3 of the brake pedal switch connector
Repair if necessary.
2.DEF
NOTESNone
Check the brake pedal switch connections.
Check the condition and adjustment of the brake pedal switch.
Repair if necessary.
Check the continuity and the absence of interference resistance on the following connection:
Injection computer black 32-track connector A
track E4Track 3 of the brake switch
Repair if necessary.
Check the conformity of the switch by consulting the interpretation of statuses ET704 Brake switch no. 1 and
ET705 Brake switch no. 2.
If the fault is still present, carry out fault finding on the ABS computer.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -132V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF1070
PRESENT
OR
STOREDCOLD LOOP
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present with the engine running and with a heating and air
conditioning system request.
Priorities when dealing with a number of faults:
–DF049 Refrigerant sensor circuit if it is present or stored.
When the fault is present or stored, the heating and air conditioning system is inhibited.
Check fuse F22 (10A) of the UPC and the condition of the air conditioning compressor connector.
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the air conditioning compressor wiring.
If the wiring is faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Manually check if the compressor is jammed (turn the clutch plate manually to check that there is no point of
resistance). In the event of sticking, replace the air conditioning compressor (see MR 364 (Mégane II) or 370
(Scénic II), Mechanical, Heating and air conditioning system, 62A, Air conditioning, Compressor: Removal
- Refitting).
Top up the refrigerant, check for any leaks and repair if necessary (see MR 364 (Mégane II) or 370 (Scénic II),
Mechanical, Heating and air conditioning system, 62A, Air conditioning, Refrigerant circuit: check,
Refrigerant circuit: Draining - Filling).
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF1070

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 172V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Interpretation of statuses
ET001
COMPUTER + AFTER IGNITION FEED
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
ABSENT
NOTESIgnition on
Check the condition and conformity of supply fuse F5D (5A) of the Protection and Switching Unit.
Repair if necessary.
Check for an earth on the following connections:
Injection computer black, 32-track connector A,
Track G4Battery earth
Injection computer black 32-track connector A,
Track H4Battery earth
Injection computer black 32-track connector A,
Track H1Battery earth
Repair if necessary.
Check for + 12 V on track D1 of connector A of the injection computer.
If there is no voltage, check the continuity and insulation to earth of the following connection:
Injection computer black 32-track connector A,
track D1Track 1 of the UPC black connector
Repair if necessary.
PRESENT
NOTESIgnition on
Check that there is not a + 12 V with ignition switched off on track D1 of connector A of the injection computer.
Repair if necessary.
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
EDC16_V51_ET001
MR-372-J84-13B250$630.mif