13B-177
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 2
INACTIVE
Procedure to apply for Mégane II and Scénic II:
When the main switch is in rest position (or neutral), status ET042 is INACTIVE.
If CRUISE CONTROL or SPEED LIMITER appears despite the main switch being in
the rest (or neutral) position, carry out the following operations:
Check the connections of the cruise control/speed limiter main switch.
Check for + 12 V APC on the main switch connector.
– Connection code AP43 of component 1081 (Mégane II)
– Connection code AP43 of component 1546 (Scénic II)
Disconnect the main switch and with it in the rest position, check the insulation
between:
– Connection codes AP43 and 3FX of component 1081 (Mégane II)
– Connection codes AP43 and 3PD of component 1081 (Mégane II)
– Connection codes AP43 and 3FX of component 1546 (Scénic II)
– Connection codes AP43 and 3PD of component 1546 (Scénic II)
Check the continuity between connections AP43 and 3PD of component 1081
(Mégane II) and component 1546 (Scénic II) in the speed limiter position.
Check the continuity between connections AP43 and 3FX of component 1081
(Mégane II) and component 1546 (Scénic II) in the cruise control position.
If these checks are not in order, replace the switch.
Check the continuity, insulation and the absence of interference resistance on the
following connections:
– Connection code 3FX,
– Connection code3PD.
Between components 1081 and 120 (Mégane II)
Between components 1546 and 120 (Scénic II)
Also check the engine management computer connectors.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
13B-178
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 3
SPEED LIMITER
Procedure to apply for Laguna II:
When the driver presses the main switch in the speed limiter position, status ET042
becomes SPEED LIMITER.
If CRUISE CONTROL or INACTIVE appears although the switch was pressed in the
speed limiter position, carry out the following operations:
Check the connections of the cruise control/speed limiter main switch.
Check for + 12 V after ignition on the main switch connector.
●Connection code AP10 of component 1081.
Disconnect the main switch and with it in the rest position, check the insulation
between:
●Connection code AP10 and 3FX of component 1081.
●Connection code AP10 and 3PD of component 1081.
– Check the continuity between connections AP10 and 3PD of component 1081 in
the speed limiter position.
– Check the continuity between connections AP10 and 3FX of component 1081 in
the cruise control position.
If these checks show incorrect values, replace the main switch.
Check the insulation, continuity and the absence of interference resistance on the
following connections:
●Connection code 3FX,
●Connection code 3PD,
between components 1081 and 120.
Also check the engine management computer connectors.
If there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
13B-179
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 4
SPEED LIMITER
Procedure to apply for Mégane II and Scénic II:
When the driver presses the main switch in the speed limiter position, status ET042
becomes SPEED LIMITER.
If CRUISE CONTROL or INACTIVE appears although the switch was pressed in the
speed limiter position, carry out the following operations:
Check the connections of the cruise control/speed limiter main switch.
Check for + 12 V after ignition on the main switch connector.
●Connection code AP43 of component 1081 (Mégane II).
●Connection code AP43 of component 1546 (Scénic II).
Disconnect the main switch and with it in the rest position, check the insulation
between:
●Connection code AP43 and 3FX of component 1081 (Mégane II).
●Connection code AP43 and 3PD of component 1081 (Mégane II).
●Connection code AP43 and 3FX of component 1546 (Scénic II).
●Connection code AP43 and 3PD of component 1546 (Scénic II).
– Check the continuity between connections AP43 and 3PD of component 1081
(Mégane II) and component 1546 (Scénic II) in the speed limiter position.
– Check the continuity between connections AP43 and 3FX of component 1081
(Mégane II) and component 1546 (Scénic II) in the cruise control position.
If these checks show incorrect values, replace the main switch.
Check the insulation, continuity and the absence of interference resistance on the
following connections:
●Connection code 3FX,
●Connection code 3PD,
between components 1081 and 120 (Mégane II).
between components 1546 and 120 (Scénic II).
Also check the engine management computer connectors.
If there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
13B-180
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 5
CRUISE CONTROL
Procedure to apply for Laguna II:
When the driver presses the main cruise control button, status ET042 becomes
CRUISE CONTROL.
If SPEED LIMITER or INACTIVE appears although the driver pressed the switch in the
cruise control position, carry out the following operations:
Check the connections of the cruise control/speed limiter main switch.
Check for + 12 V after ignition on the main switch connector.
– Connection code AP10 of component 1081.
Disconnect the switch and when it is in the rest position, check the insulation between:
– Connection codes AP10 and 3FX of component 1081.
– Connection codes AP10 and 3PD of component 1081.
– Check the continuity between connections AP10 and 3PD of component 1081 in
the speed limiter position.
– Check the continuity between connections AP10 and 3FX of component 1081 in the
cruise control position.
If these checks show incorrect values, replace the main switch.
Check the insulation, continuity, and the absence of interference resistance on the
following connections:
– Connection code 3FX,
– Connection code3PD.
Between components 1081 and 120.
Also check the engine management computer connectors.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
13B-181
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 6
CRUISE CONTROL
Procedure to apply for Mégane II and Scénic II:
When the driver presses the main switch in the cruise control position, status ET042
becomes CRUISE CONTROL.
If SPEED LIMITER or INACTIVE appears even though the cruise control button is
pressed, carry out the following operations:
Check the connections of the cruise control/speed limiter main switch.
Check for + 12 V after ignition on the main switch connector.
●Connection code AP43 of component 1081 (Mégane II).
●Connection code AP43 of component 1546 (Scénic II).
Disconnect the switch and when it is in the rest position, check the insulation between:
●Connection code AP43 and 3FX of component 1081 (Mégane II).
●Connection code AP43 and 3PD of component 1081 (Mégane II).
●Connection code AP43 and 3FX of component 1546 (Scénic II).
●Connection code AP43 and 3PD of component 1546 (Scénic II).
– Check the continuity between connections AP43 and 3PD of component 1081
(Mégane II) and component 1546 (Scénic II) in the speed limiter position.
– Check the continuity between connections AP43 and 3FX of component 1081
(Mégane II) and component 1546 (Scénic II) in the cruise control position.
If these checks show incorrect values, replace the main switch.
Check the insulation, continuity, and the absence of interference resistance on the
following connections:
●Connection code 3FX,
●Connection code3PD.
Between components 1081 and 120 (Mégane II).
Between components 1546 and 120 (Scénic II).
Also check the engine management computer connectors.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
13B-189
MR-372-J84-13B200$504.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of statuses
ET143
LOW-SPEED FAN ASSEMBLY RELAY CONTROL
STATUS DEFINITIONACTVE: This status indicates that the low-speed fan assembly relay is actuated.
INACTIVE: This status indicates that the low-speed fan assembly relay is not actuated.
NOTESIf the vehicle is fitted with air conditioning, the fan assembly electrical circuit contains
2 relays. The fan assembly speed 1 relay will be actuated when the engine coolant
temperature exceeds 96° and will be dedicated to cooling the engine as long as the
engine coolant temperature does not exceed 99°.
If the engine coolant temperature exceeds 99°, fan assembly speed 2 relay will be
actuated and the engine cooling fan will run more quickly.
ACTIVE
When the coolant reaches 96°C, the diesel computer actuates the low-speed fan
assembly relay and status ET143 becomes ACTIVE.
The relay then supplies the fan assembly and the cooling fan begins to turn.
Run command AC038 Low-speed fan unit relay and check visually that the cooling
fan is turning.
If this is not the case, carry out the following operations:
– check the condition of fuse FM15 (60A) and the motor relay R09,
– disconnect the low-speed and high-speed relays, check their operation and the
condition of the connections.
– repair if necessary,
– check for a + 12 V on connection 3FB of the low speed relay when it is actuated
then check the continuity and the absence of interference resistance on connection
3JN 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.
INACTIVEIf the engine temperature is less than 96°C, the engine cooling fan cannot switch on
and the low-speed fan assembly relay cannot be actuated.
Sta tus ET143 becomes INACTIVE when the control relay and the engine cooling fan
are not supplied.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V18_ET143/EDC16_V1C_ET143/EDC16_V20_ET143EDC16
Program No: C1
Vdiag No: 18, 1C, 20
13B-190
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET144
HIGH-SPEED FAN ASSEMBLY RELAY CONTROL
STATUS DEFINITIONACTIVE: This status indicates that the high-speed fan assembly relay is actuated.
INACTIVE: This status indicates that the high-speed fan assembly relay is not
actuated.
ACTIVE
When the coolant reaches 99°C, the diesel computer activates the high-speed fan
assembly relay and status ET144 becomes ACTIVE.
The relay then supplies the fan assembly and the cooling fan begins to turn.
Run command AC039 High-speed fan unit relay and visually check that the cooling
fan is turning. If this is not the case, carry out the following operations:
– check the condition of fuse FM15 (60A) and the motor relay R10,
– disconnect the fan unit relays, check their operation and the condition of the
connections,
– repair if necessary,
– check for a + 12 V on connection 49B of components 597 and 262, when the high-
speed relay is actuated.
Check the continuity and the absence of interference resistance on the following
connections:
–Connection codes 3JP and 49B between components 120, 957 and 262.
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.
INACTIVEIf the engine temperature is less than 99°C, the engine cooling fan cannot switch on
and the high-speed fan assembly relay should not be actuated.
Status ET144 becomes INACTIVE when the control relay and the engine cooling fan
are not supplied.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V18_ET144/EDC16_V1C_ET144/EDC16_V20_ET144
13B-194
MR-372-J84-13B200$540.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of statuses
ET405
CLUTCH PEDAL SWITCH
STATUS DEFINITION"Inactive": this status indicates that the switch is released.
"Active": this status indicates that the switch is pressed.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
The clutch pedal is present depending on the gearbox type.
ACTIVE and clutch
pedal released
INACTIVE and
clutch pedal
depressed
Check the condition and fitting of the clutch pedal switch,
Remove the clutch pedal switch and check that it is functioning correctly.
Continuity between
connectionsInsulation between
connections
Switch pressed (Clutch
pedal released)MAM and 86D
Switch released (Clutch
pedal depressed)MAM and 86D
Replace the switch if necessary.
Check the condition and fitting of the clutch pedal switch,
Check the continuity and the absence of interference resistance on connection 86D
between components 120 and 675.
If the connection or connections are defective 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 an earth on connection MAM of the clutch switch.
Repair if necessary.
Remove the clutch pedal switch and check that it is functioning correctly.
Continuity between
connectionsInsulation between
connections
Switch pressed (Clutch
pedal released)MAM and 86D
Switch released (Clutch
pedal depressed)MAM and 86D
Replace the clutch pedal switch if necessary.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_ET405/EDC16_V58_ET405/EDC16_V5C_ET405/EDC16_V18_ET405/EDC16_V1C_ET405/EDC16_V20_ET405 EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
MR-372-J84-13B200$540.mif