
13B-275V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 2
"INACTIVE"
When the main button is in rest position (or Neutral), status ET042 Cruise control/
speed limiter 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 after ignition on the switch connector on the following connections:
•AP10 of component 1081 (for Vel Satis ph 2, Laguna II ph2 and Espace IV ph2),
•AP43 of component 1081 (for Mégane II ph2),
•AP43 of component 1546 (for Scénic II ph2).
Disconnect the main switch, and when it is in the rest position, check the insulation
between the following connections:
•AP10 and 3FX of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP10 and 3PD of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3FX of component 1081 (for Mégane II ph2),
•AP43 and 3PD of component 1081 (for Mégane II ph2),
•AP43 and 3FX of component 1546 (for Scénic II ph2),
•AP43 and 3PD of component
1546 (for Scénic II ph2).
With speed limiter selected, check the continuity between the following connections:
•AP10 and 3PD of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3PD of component 1081 (for Mégane II ph2),
•AP43 and 3PD of component 1546 (for Scénic II ph2).
With cruise control selected, check the continuity between the following connections:
•AP10 and 3FX of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3FX of component 1081 (for Mégane II ph2),
•AP43 and 3FX of component 1546 (for Scénic II ph2).
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-276V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 3
"INACTIVE"
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, insulation and the absence of interference resistance of
the following connections:
•3FX and 3PD between components 1081 and 120 (for Vel Satis ph2, Laguna II
ph2, Espace IV ph2 and Mégane II ph2),
•3FX and 3PD between components 1546 and 120 (for Scénic II ph2).
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.
Also check:
The engine management computer connections.
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.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-277V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 4
LIMITER
When the driver presses the main switch to the speed limiter position, status ET042
Cruise control / speed limiter 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 switch connector on the following connections:
•AP10 of component 1081 (for Vel Satis ph2, Laguna II ph2 and Espace IV ph2),
•AP43 of component 1081 (for Mégane II ph2),
•AP43 of component 1546 (for Scénic II ph2).
Disconnect the main switch, and when it is in the rest position, check the insulation
between the following connections:
•AP10 and 3FX of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP10 and 3PD of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3FX of component 1081 (for Mégane II ph2),
•AP43 and 3PD of component 1081 (for Mégane II ph2),
•AP43 and
3FX of component 1546 (for Scénic II ph2),
•AP43 and 3PD of component 1546 (for Scénic II ph2).
With speed limiter selected, check the continuity between the following connections:
•AP10 and 3PD of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3PD of component 1081 (for Mégane II ph2),
•AP43 and 3PD of component 1546 (for Scénic II ph2).
With cruise control selected, check the continuity between the following connections:
•AP10 and 3FX of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3FX of component 1081 (for Mégane II ph2),
•.AP43 and 3FX of component 1546 (for Scénic II ph2).
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.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-278V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 5
LIMITER
Check the continuity, insulation and the absence of interference resistance of
the following connections:
•3FX and 3PD between components 1081 and 120 (for Vel Satis ph2, Laguna II
ph2, Espace IV ph2 and Mégane II ph2)
•3FX and 3PD between components 1546 and 120 (for Scénic II ph2).
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.
Also check:
The engine management computer connections.
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.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-279V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 6
CRUISE
CONTROL
When the driver presses the cruise control switch, status ET042 Cruise control/
speed limiter 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 switch connector on the following connections:
•AP10 of component 1081 (for Vel Satis ph2, Laguna II ph2 and Espace IV ph2).
•AP43 of component 1081 (for Mégane II ph2).
•AP43 of component 1546 (for Scénic II ph2).
Disconnect the main switch, and when it is in the rest position, check the insulation
between the following connections:
•AP10 and 3FX of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP10 and 3PD of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3FX of component 1081 (for Mégane II ph2),
• AP43 and 3PD of component 1081 (for Mégane II ph2),
•
AP43 and 3FX of component 1546 (for Scénic II ph2),
•AP43 and 3PD of component 1546 (for Scénic II ph2).
With speed limiter selected, check the continuity between the following connections:
•AP10 and 3PD of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3PD of component 1081 (for Mégane II ph2),
•AP43 and 3PD of component 1546 (for Scénic II ph2).
With cruise control selected, check the continuity between the following connections:
•AP10 and 3FX of component 1081 (for Vel Satis ph2, Laguna II ph2 and
Espace IV ph2),
•AP43 and 3FX of component 1081 (for Mégane II ph2),
•.AP43 and 3FX of component 1546 (for Scénic II ph2).
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-280V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET042
CONTINUED 7
CRUISE
CONTROL
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, insulation and the absence of interference resistance of
the following connections:
•3FX and 3PD between components 1081 and 120 (for Vel Satis ph2, Laguna II
ph2, Espace IV ph2 and Mégane II ph2),
•3FX and 3PD between components 1546 and 120 (for Scénic II ph2).
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.
Also check:
The engine management computer connections.
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.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-286V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET143LOW-SPEED FAN ASSEMBLY RELAY CONTROL
STATUS
DEFINITIONThis status indicates whether the low speed fan assembly is active.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
If the vehicle is fitted with air conditioning, the fan assembly electrical circuit includes
2 relays. The 1
st speed fan assembly relay will be actuated when the engine coolant
temperature exceeds 99°C and its function is to cool the engine so that the engine
temperature does not exceed 102°C. If the engine coolant temperature exceeds 102°C,
the 2
nd speed fan assembly relay will be actuated and the fan will rotate faster.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
IMPORTANT:
If the vehicle is equipped with air conditioning, the engine cooling fan will operate at 1
st speed as soon as the air
conditioning compressor is activated.
Conformity check with engine stopped and ignition on.
"INACTIVE"Engine cold and air conditioning switched off
In the event of a fault, consult the interpretation of fault DF018 Low speed fan
assembly control circuit.
EDC16CP33_V18_ET143 / EDC16CP33_V1C_ET143 / EDC16CP33_V54_ET143 / EDC16CP33_V20_ET143 / EDC16CP33_V58_ET143 /
EDC16CP33_V5C_ET143 / EDC16CP33_V24_ET143 / EDC16CP33_V04_ET143 / EDC16CP33_V08_ET143 / EDC16CP33_V44_ET143 /
EDC16CP33_V4C_ET143 / EDC16CP33_V34_ET143 / EDC16CP33_V38_ET143 / EDC16CP33_V74_ET143 / EDC16CP33_V28_ET143 /
EDC16CP33_V26_ET143
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 74

13B-287V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET143
CONTINUED 1
Conformity check with the engine running and engine coolant temperature > 80°C
INACTIVE or ACTIVE, depending on the engine temperature (air conditioning switched off).
In the event of a fault, refer to the interpretation of fault DF018.
Sensor electrical conformity
"ACTIVE"When the coolant reaches 99°C, the injection 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.
If status ET143 is ACTIVE, but the cooling fan is not running, perform the following
operations:
Check the condition of fuse FM15 (60 A) in the engine fuse and relay box (see MR364
(Mégane II ph2), MR370 (Scénic II ph2), MR 395 (Laguna II ph2), 402 (Vel Satis
ph2), 405 (Espace IV ph2) Mechanical, 81C, Fuses, Fuses: List and location of
components).
Disconnect the low speed and high speed relays, check that they are operating
correctly and check the condition of the relay mounting connectors (see Wiring
Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II
ph2, Scénic II ph2, component code 597).
If one of the connectors is faulty and there is a repair procedure (see Technical
Note 6015A, Electrical wiring repair, wiring: precautions for repair), repair the
connector, otherwise replace the wiring.
Check the + 12 V after relay supply to the low speed fan assembly relay on the
following connection:
•3FB of component 700.
Check the continuity and absence of interference resistance of the following
connections:
•49L between components 700 and 321,
•49B between components 262 and 321,
•3JN between components 700 and 120.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 74