2009 RENAULT TWINGO RS Chasiss - Power Assisted Steering Workshop Manual

36B-49
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 7 PERMANENT ASSISTANCE
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Check the conformity of the computer and the steering column (45 or 60 A) in relation to the table below:
Left-hand drive Right-hand drive
Torque sensor wiring harness blue black
Motor wiring 45 A green black
Motor wiring 60 A blue grey
45 A 60 A
ECU label yellow white
In the event of non-conformity, consult RENAULT NET to repair the vehicle according to the technical vehicle
definition.
Check that the configuration reading LC002 Strategy number corresponds to the vehicle equipment.
Configure the computer correctly using the diagnostic tool, if necessary (see Configuration).
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_ALP7/ DAE_V08_ALP7

36B-50
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
ALP 8 EXCESSIVE PERMANENT ASSISTANCE
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Check that the configuration reading LC002 Strategy number corresponds to the vehicle equipment.
Configure the computer correctly using the diagnostic tool, if necessary (see Configuration and Programming).
Apply the fault finding procedure for fault DF043 Vehicle speed.
If the fault is still present, contact Techline.
AFTER REPAIRPerform a check using the diagnostic tool.
DAE_V04_ALP8/ DAE_V08_ALP8

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

36B-54
MR-413-X44-36B000$938.mif
V2
POWER – ASSISTED STEERING
Fault finding – Fault finding Chart
EPAS
Vdiag No.: 04 - 08
36B
CHART 12 STEERING WHEEL NOT RETURNING TO CENTRE POINT
NOTESOnly consult this customer complaint after a complete check with the
diagnostic tool.
Conditions:
The steering automatic return function is effective within a speed range of 5 and
20 mph (8 to 32 km/h).
Carry out a complete check of the axle assemblies on an axle adjustment bench (see MR 411, 30A,
General information, for the checking values).
If the fault is still present, contact Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_ALP12 /DAE_V08_ALP12