wheel RENAULT TWINGO 2009 2.G Chasiss - Power Assisted Steering Owner's Manual

36B-36
MR-413-X44-36B000$804.mif
V2
36B
POWER – ASSISTED STEERING
Fault finding – Interpretation of parameters
PR001
TORQUE APPLIED TO THE STEERING WHEEL
NOTESNone.
This parameter indicates the torque applied by the driver to the steering column.
If the parameter does not conform with the values indicated in the Conformity check, consult the interpretation of
fault DF054 Torque sensor.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_PR001/DAE_V08_PR001
EPAS
Vdiag No.: 04 - 08
MR-413-X44-36B000$804.mif

36B-39
MR-413-X44-36B000$804.mif
V2
POWER – ASSISTED STEERING
Fault finding – Interpretation of parameters36B
EPAS
Vdiag No.: 04
PR121
STEERING WHEEL ANGLE
NOTESNone.
This parameter indicates the position of the steering wheel in relation to zero.
The steering wheel angle programming is performed automatically by the power-assisted steering computer
every time the vehicle is driven.
This parameter is positive to the right and negative to the left.
If the parameter does not correspond to the values indicated in the Conformity check, consult the interpretation
of fault DF038 Angle sensor.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_PR121

36B-40
MR-413-X44-36B000$804.mif
V2
POWER – ASSISTED STEERING
Fault finding – Interpretation of parameters
EPAS
Vdiag No.: 04 - 08
36B
PR129
PR131
MOTOR POWER (60 A)
CURRENT SETPOINT (60 A)
NOTESNone.
Parameter PR131 Current setpoint (60 A) indicates the current setpoint (power) sent by the EPAS computer to
the steering motor according to the torque applied to the steering wheel. Parameter PR129 Motor power (60 A)
indicates the electric current actually consumed by the EPAS motor.
The value of parameter PR131 Current setpoint (60 A) must be approximately equal to the value of parameter
PR129 Motor power (60 A).
If the parameters are not the same, contact the Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_PR129/DAE_V04_PR131/ DAE_V08_PR129/DAE_V08_PR131

36B-41
MR-413-X44-36B000$804.mif
V2
POWER – ASSISTED STEERING
Fault finding – Interpretation of parameters
EPAS
Vdiag No.: 04 - 08
36B
PR130
PR132
MOTOR POWER (45 A)
CURRENT SETPOINT (45 A)
NOTESNone.
Parameter PR130 Current setpoint (45 A) indicates the current setpoint (power) sent by the EPAS computer to
the steering motor according to the torque applied to the steering wheel. Parameter PR132 Motor power (45 A)
indicates the electric current actually consumed by the EPAS motor.
The value of parameter PR130 Current setpoint (45 A) must be approximately equal to the value of parameter
PR132 Motor power (45 A).
If the parameters are not the same, contact the Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_PR130/DAE_V04_PR132/ DAE_V08_PR130/DAE_V08_PR132

36B-42
MR-413-X44-36B000$871.mif
V2
36B
POWER – ASSISTED STEERING
Fault finding – Customer complaints
NO DIALOGUE WITH THE COMPUTER ALP 1
POOR VEHICLE HANDLINGALP 2
SUDDEN LOSS OF ASSISTANCE ALP 3
GRADUAL LOSS OF ASSISTANCE CHART 4
INTERMITTENT ASSISTANCE ALP 5
ASSISTANCE RETURN ALP 6
PERMANENT ASSISTANCEALP 7
EXCESSIVE PERMANENT ASSISTANCE ALP 8
STEERING WHEEL VIBRATION OR PULSATING ALP 9
NO ASSISTANCE ON START-UP ALP 10
WARNING LIGHT ON WITH NO FAULT ALP 11
STEERING WHEEL NOT RETURNING TO CENTRE POINT ALP 12
EPAS
Vdiag No.: 04 - 08
MR-413-X44-36B000$871.mif

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-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