2009 RENAULT TWINGO RS diagram

36B-43
MR-413-X44-36B000$938.mif
V2
36B
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
ALP 1 No dialogue with the computer
NOTESUse the Technical Note wiring diagram for New Twingo.
Try to establish dialogue with a computer on another vehicle to check that the diagnostic tool is not faulty.
If the tool is not faulty and no dialogue is established with any other computer of the same vehicle, check the
tightness and condition of the battery terminals (see 80A, Battery).
Check the charging circuit (see 16A, Starting - Charging).
With connector A of component 502 and the connector of components 1222 and 1094 disconnected, check the
continuity and insulation of connection HK between components 502 and 225.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, check the conformity of components 1022 and 1094.
Check the condition and the position of the 80 A fuse in the engine fuse and relay box.
Check the condition and the position of fuse F3 (15 A) in the passenger compartment fuse box.
With the ignition on and the engine stopped, check for a voltage equal to the battery voltage on connections BP81
and AP23 against earth ML.
Connectors of component 502 disconnected, check the condition and conformity of the connectors and clips.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
With the connectors of components 597 and 1016 disconnected:
Check the continuity and insulation of connection BP81 between components 502 and 597.
Check the continuity and insulation of connection AP23 between components 502 and 1016.
Check the continuity and insulation of connection ML of component 502.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, check the conformity of components 597 and 1016.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_ALP1/ DAE_V08_ALP1
EPAS
Vdiag No.: 04 - 08
MR-413-X44-36B000$938.mif

36B-45
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 3 SUDDEN LOSS OF ASSISTANCE
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Use the Technical Note wiring diagram for New Twingo.
Connectors of component 502 disconnected, check the condition and conformity of the connectors and clips.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
With the connector of component 597 disconnected:
Check the continuity and insulation of connection BP81 between components 502 and 597.
Check the continuity and insulation of connection ML of component 502.
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, perform a conformity check of component 597.
Check the pressure and condition of the tyres, the steering, joints and the front axle geometry.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a check using the diagnostic tool.
DAE_V04_ALP3/ DAE_V08_ALP3

36B-46
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
CHART 4 GRADUAL LOSS OF ASSISTANCE
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Use the Technical Note wiring diagram for New Twingo.
Connectors of component 502 disconnected, check the condition and conformity of the connectors and clips.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
With the connector of component 1016 disconnected:
Check the continuity and insulation of connection AP23 between components 502 and 1016.
Check the continuity and insulation of connection ML of component 502.
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, perform a conformity check of component 1016.
Check the pressure and condition of the tyres, the condition of the joints and the front axle geometry.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a check using the diagnostic tool.
DAE_V04_ALP4/ DAE_V08_ALP4

36B-47
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 5 INTERMITTENT ASSISTANCE
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Use the wiring diagram Technical Note for New Twingo.
Connectors of component 502 disconnected, check the condition and conformity of the connectors and clips.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
With the connector of component 1016 disconnected:
Check the continuity and insulation of connection AP23 between components 502 and 1016.
Check the continuity and insulation of connection ML of component 502.
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, perform a conformity check of component 1016.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a check using the diagnostic tool.
DAE_V04_ALP5/ DAE_V08_ALP5

36B-48
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 6 ASSISTANCE RETURN WHILE DRIVING
NOTESOnly address this customer complaint after a complete check with the
diagnostic tool.
Use the wiring diagram Technical Note for New Twingo.
Connectors of component 502 disconnected, check the condition and conformity of the connectors and clips.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
With the connector of component 597 disconnected:
Check the continuity and insulation of connection BP81 between components 502 and 597.
Check the continuity and insulation of connection ML of component 502.
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, perform a conformity check of component 597.
Check the pressure and condition of the tyres, the condition of the joints and the front axle geometry.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_ALP6/ DAE_V08_ALP6

36B-51
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 9 STEERING WHEEL VIBRATION OR PULSATING
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Use the Technical Note wiring diagram for New Twingo.
Connectors of component 502 disconnected, check the condition and conformity of the connectors and clips.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
With the connector of component 1016 disconnected:
Check the continuity and insulation of connection AP23 between components 502 and 1016.
Check the continuity and insulation of connection ML of component 502.
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, perform a conformity check of component 1016.
Check the conformity of PR001 Torque applied to steering wheel (see Conformity check).
If the value of this parameter changes drastically without any movement of the steering wheel, contact the
Techline
Check the conformity of PR129 Motor power (60 A) or PR130 Motor power (45 A) (see Conformity check).
If the value of this parameter changes drastically without any movement of the steering wheel, contact the
Techline.
If the incident is still present, contact the Techline.
AFTER REPAIRPerform a check using the diagnostic tool.
DAE_V04_ALP9/ DAE_V08_ALP9

36B-52
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 10 NO ASSISTANCE ON START-UP
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Use the Technical Note wiring diagram for New Twingo.
Connectors of component 502 disconnected, check the condition and conformity of the connectors and clips.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
With the connector of component 1016 disconnected:
Check the continuity and insulation of connection AP23 between components 502 and 1016.
Check the continuity and insulation of connection ML of component 502.
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, perform a conformity check of component 1016.
Check the battery voltage and carry out any operations necessary to obtain a correct voltage
(10 V < battery voltage < 16 V, see MR 411 Mechanical systems, 16A, Starting - Charging).
Apply the fault finding procedure for fault DF028 No engine speed.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_ALP10 /DAE_V08_ALP10

36B-53
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 11 WARNING LIGHT ON WITH NO FAULT
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Use the Technical Note wiring diagram for New Twingo.
With the connectors of components 502 and 247 disconnected, check the continuity and insulation of connection
109H between components 502 and 247.
If the connection is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the checks reveal no faults, perform a conformity check of component 247.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_ALP11/DAE_V08_ALP11