1 3 B - 111V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF086
CONTINUED
CO.0NOTESNone.
Check the condition of the electric coolant pump relay connector (A 20A) (see Wiring Diagram Technical Note
for Mégane II ph2, Scénic II ph2, component code 573) and check that it operates correctly.
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Mégane II ph2, Scénic II ph2, 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.
Check the insulation, continuity and the absence of interference resistance on the following connections:
– connection codes 32A and 32B between components 688 and 1337,
– connection codes 47Q and 115A between components 688 and 120.
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.
Check for connection code M earth on the turbocharger bearing coolant pump component code 369.
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, contact the Techline.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-188
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check using the diagnostic tool.
V9 MR-372-J84-13B450$104.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF778
CONTINUED
Check the turbine upstream temperature sensor connections.
check the engine management computer connections.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Check the continuity, absence of interference resistance and insulation from + 5 V and + 12 V of the following
connections:
– Connection code 3ABS,
– Connection code 3ABT,
between components1589 and 120.
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.
Check the continuity, the absence of interference resistance, and the insulation against earth of the following
connection:
– Connection code 3ABS between components 1589 and 120.
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 for the earth on the connector of the turbine upstream temperature sensor:
– Connection code 3ABT of component 1589.
Apply TEST 4 Turbocharged air inlet circuit check.
If the fault is still present, warm up the engine until parameter PR064 coolant temperature = 80°C.
Then run the engine at fast idle speed: PR055 engine speed = 1500 rpm for 2 minutes.
If PR667 Turbine upstream temperature remains fixed at 200°C, replace the turbine upstream temperature
sensor.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-205V9 MR-372-J84-13B450$131.mif
13B
ET001COMPUTER + AFTER IGNITION FEED
STATUS DEFINITIONPRESENT: This status indicates that the + after ignition feed is active.
"ABSENT": This status indicates that the + after ignition is not active.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Use the Mégane II ph2, Scénic II ph2 Wiring Diagram Technical Note.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
PRESENTIgnition on and engine running warm at idle speed with the + after ignition feed
activated.
In the event of a fault, apply the interpretation of DF046 Battery voltage or DF151
Main relay circuit.
EDC16C36_V44_ET001/EDC16C36_V4C_ET001/EDC16C36_V48_ET001/EDC16C36_V50_ET001/EDC16C36_V54_ET001/
EDC16C36_V58_ET001
DIESEL INJECTION
Fault finding – Interpretation of statuses
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-207V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET003ENGINE IMMOBILISER
STATUS DEFINITIONACTIVE: This status indicates that the immobiliser is active.
INACTIVE: This status indicates that the immobiliser is not active.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
ACTIVERefer to the fault finding note for the UCH (see 87B, Passenger compartment
connection unit).
INACTIVERefer to the fault finding note for the UCH (see 87B, Passenger compartment
connection unit).
EDC16C36_V44_ET003/EDC16C36_V4C_ET003/EDC16C36_V48_ET003/EDC16C36_V50_ET003/EDC16C36_V54_ET003/
EDC16C36_V58_ET003
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-208V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET004AIR CONDITIONING AUTHORISATION
STATUS DEFINITIONYES: This status indicates that the air conditioning is active.
NO: This status indicates that the air conditioning is inactive.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
YES
or
NOIf the air conditioning is authorised or the compressor actuated (see 62A, Air
conditioning).
EDC16C36_V44_ET004/EDC16C36_V4C_ET004/EDC16C36_V48_ET004/EDC16C36_V50_ET004/EDC16C36_V54_ET004/
EDC16C36_V58_ET004
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-210V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET007PRE-POSTHEATING UNIT CONTROL
STATUS DEFINITIONACTIVE: when the heater plugs are activated according to the temperature of the
engine coolant.
INACTIVE: after the engine has been running for a certain period.
In the event of a fault, consult the interpretation of fault DF017 Preheating unit control
circuit.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Use the Mégane II ph2, Scénic II ph2 Technical Note wiring diagram.
Conformity check with engine stopped and ignition on
ACTIVEWhen the ignition is switched on, the status ET007 must have an ACTIVE status for a
time that varies depending on the temperature of the engine coolant. Both the relay
and the heater plugs are supplied.
After starting, the status should remain ACTIVE for a time that varies depending on
the engine temperature. This is the postheating phase.
If ET007 is INACTIVE when the ignition is switched on, check:
– The supply fuse FM12 (70A) in (597) the engine fuse and relay box.
– The feed to the heater plugs after relay actuation, and the connections of the heater
plugs.
IMPORTANT
On this engine, the plug supply voltage is variable.
EDC16C36_V44_ET007/EDC16C36_V4C_ET007/EDC16C36_V48_ET007/EDC16C36_V50_ET007/EDC16C36_V54_ET007/
EDC16C36_V58_ET007
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-211V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET007
CONTINUED
ACTIVE
The continuity and absence of interference resistance on the following
connections:
– Connection code 37AB between components 257 and 683,
– Connection code 37AA between components 257 and 680,
– Connection code 37Z between components 257 and 681,
– Connection code 37AC between components 257 and 682.
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 the wiring.
Check the status of the preheating unit and that they are connected correctly (see
Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2, Component code
257).
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 vehicle starts, postheating has ended and status ET007 remains ACTIVE during
the engine operating phase, consult the interpretation of faults DF017 'Preheating
unit control circuit'' and DF025 Preheating unit diagnostic line (see
Interpretation of faults).
INACTIVEIf the vehicle does not start, the status remains INACTIVE and preheating was not
executed when the ignition was switched on or during the starting phase.
Check the continuity and absence of interference resistance on the following
connections:
– Connection code 3FY, between components 120 and 257.
– Connection code 3FF between components 120 and 257.
Check the + 12 V battery supply to the pre-postheating unit.
– Connection code BP35 of component 257.
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 the wiring.
Conformity check with engine running, engine coolant temperature > 80°C
ACTIVE
then
INACTIVEAfter the engine has been running for a certain period, the status changes from
ACTIVE to INACTIVE.
In the event of a fault, consult the interpretation of fault DF017 Preheating unit
control circuit.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-212V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET014FAN ASSEMBLY NO. 1 CHECK
STATUS DEFINITIONRUNNING: This status indicates that the fan assembly is engaged.
STOPPED: This status indicates that the fan assembly is not engaged.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system operation
programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
RUNNINGThe low-speed engine fan is supplied in three scenarios:
– the engine coolant temperature is greater than 89°C,
–the air conditioning is operating,
– the injection computer has system faults that could lead to the engine overheating.
When the low-speed fan assembly is supplied:
–status ET014 Fan assembly 1 check becomes RUNNING.
–status ET143 Low speed fan unit relay control becomes ACTIVE.
Conformity check with engine stopped and ignition on
STOPPEDThe low-speed fan assembly stops when:
– the engine coolant temperature is less than 89°C,
– the air conditioning is not switched on by the driver.
EDC16C36_V44_ET014/EDC16C36_V4C_ET014/EDC16C36_V48_ET014/EDC16C36_V50_ET014/EDC16C36_V54_ET014/
EDC16C36_V58_ET014
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58