2009 RENAULT TWINGO RS Chasiss - Power Assisted Steering Workshop Manual

36B-25
MR-413-X44-36B000$536.mif
V2
36B
POWER – ASSISTED STEERING
Fault finding – Conformity check
MAIN SCREEN
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Application conditions: ignition on, engine stopped, no movement of
the steering wheel, front wheels set straight ahead.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
Wire informationPR003:Vehicle speedX = 0 mph (km/h)In the event of a fault, apply the
interpretation of parameter
PR003.
PR004: Engine speed0 = rpmIn the event of a fault, apply the
interpretation of parameter
PR004.
AssistancePR001: Torque applied
to the steering
wheel0 Nm (+ 0.2 Nm)In the event of a fault, apply the
interpretation of parameter
PR001.
Steering wheel
angle
(Vdiag 04 only)PR121:Steering wheel
angle- 5˚ < X < 5˚In the event of a fault, apply the
interpretation of parameter
PR121.
EPAS
Vdiag No.: 04 - 08
MR-413-X44-36B000$536.mif
DAE_V04_CCONF/DAE_V08_CCONF

36B-26
MR-413-X44-36B000$536.mif
V2
POWER – ASSISTED STEERING
Fault finding – Conformity check
EPAS
Vdiag No.: 04 - 08
36B
SUB-FUNCTION: ASSISTANCE
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Application conditions: ignition on, engine stopped, no movement of
the steering wheel, front wheels set straight ahead.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
Power supplyPR032:Feed voltage0 VIn the event of a fault on this
parameter, apply the fault finding
procedure of DF037 Battery voltage.
Wire informationPR003:Vehicle speed0 mphIn the event of a fault, apply the
interpretation of parameter PR003.
PR004:Engine speed0 rpmIn the event of a fault, apply the
interpretation of parameter PR004.
Steering wheel
angle
(Vdiag 04 only)ET020:Steering
wheel angle
sensor
programmingNot programmedIn the event of a fault, apply the
interpretation of status ET020.
PR121:Steering
wheel angle- 5˚ < X < 5˚In the event of a fault, apply the
interpretation of parameter PR121.
FaultsET021:Motor thermal
protection
indicatorNot activeIn the event of a fault, apply the
interpretation of status ET021.
ET025:Fault indicatorOffIn the event of a fault, apply the
interpretation of status ET025.

36B-27
MR-413-X44-36B000$536.mif
V2
POWER – ASSISTED STEERING
Fault finding – Conformity check
EPAS
Vdiag No.: 04 - 08
36B
SUB-FUNCTION: ASSISTANCE (CONTINUED)
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Application conditions: ignition on, engine stopped, no movement of the
steering wheel, front wheels set straight ahead.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
AssistancePR001:Torque applied
to the steering
wheel0 Nm (+ 0.2 Nm)In the event of a fault, apply the
interpretation of parameter
PR001.
OutputPR132:Current setpoint
(45 A)0 A
Note: these two
parameters must be
approximately the
same.In the event of a fault, apply the
interpretation of parameters
PR132 and PR130.
PR130:Motor power
(45 A)
PR131:Current setpoint
(60 A)0 A
Note: these two
parameters must be
approximately the
same.In the event of a fault, apply the
interpretation of parameters
PR131 and PR129.
PR129:Motor power
(60 A)

36B-28
MR-413-X44-36B000$536.mif
V2
POWER – ASSISTED STEERING
Fault finding – Conformity check
EPAS
Vdiag No.: 04 - 08
36B
MAIN SCREEN
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Application conditions: engine at idle speed, no movement of the steering
wheel, front wheels straight ahead.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
Wire informationPR003:Vehicle speed0 mphIn the event of a fault, apply the
interpretation of parameter
PR003.
PR004:Engine speed850 +/- 50 rpmIn the event of a fault, apply the
interpretation of parameter
PR004.
Assistance PR001:Torque applied
to the steering
wheel0 Nm (+ 0.2 Nm)In the event of a fault, apply the
interpretation of parameter
PR001.
Steering wheel
angle
(Vdiag 04 only)PR121:Steering wheel
angle- 5˚ < X < 5˚In the event of a fault, apply the
interpretation of parameter
PR121.

36B-29
MR-413-X44-36B000$536.mif
V2
POWER – ASSISTED STEERING
Fault finding – Conformity check
EPAS
Vdiag No.: 04 - 08
36B
SUB-FUNCTION: ASSISTANCE
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Application conditions: engine at idle speed, no movement of the steering
wheel, front wheels straight ahead.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
Power supplyPR032:Feed voltage12 < X < 16 VIn the event of a fault on this
parameter, apply the fault finding
procedure of DF037 Battery
voltage.
Wire informationPR003: Vehicle speed0 mphIn the event of a fault, apply the
interpretation of parameter
PR003.
PR004:Engine speed850 +/- 50 rpmIn the event of a fault, apply the
interpretation of parameter
PR004.
Steering wheel
angle (Vdiag 04
only)ET020:Steering wheel
angle sensor
programmingNot programmedIn the event of a fault, apply the
interpretation of status ET020.
PR121:Steering wheel
angle- 5˚ < X < 5˚In the event of a fault, apply the
interpretation of parameter
PR121.
FaultsET021:Motor thermal
protection
indicatorNot activeIn the event of a fault, apply the
interpretation of status ET021.
ET025:Fault indicatorOffIn the event of a fault, apply the
interpretation of status ET025.

36B-30
MR-413-X44-36B000$536.mif
V2
POWER – ASSISTED STEERING
Fault finding – Conformity check
EPAS
Vdiag No.: 04 - 08
36B
SUB-FUNCTION: ASSISTANCE (CONTINUED)
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
Application conditions: engine at idle speed, no movement of the steering
wheel, front wheels straight ahead.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
AssistancePR001:Torque applied
to the steering
wheel0 Nm (+ 0.2 Nm)In the event of a fault, apply the
interpretation of parameter
PR001.
OutputPR132: Current setpoint
(45 A)0 A
Note: these two
parameters must be
approximately the
same.In the event of a fault, apply the
interpretation of parameters
PR132 and PR130.
PR130: Motor power (45
A)
PR131: Current setpoint
(60 A)0 A
Note: these two
parameters must be
approximately the
same.In the event of a fault, apply the
interpretation of parameters
PR131 and PR129.
PR129: Motor power (60
A)

36B-31
MR-413-X44-36B000$603.mif
V2
36B
POWER – ASSISTED STEERING
Fault finding – Status summary table
Tool status Diagnostic tool title
ET020Steering wheel angle programming
ET021Motor thermal protection indicator
ET025Fault indicator
EPAS
Vdiag No.: 04 - 08
MR-413-X44-36B000$603.mif

36B-32
MR-413-X44-36B000$670.mif
V2
36B
POWER – ASSISTED STEERING
Fault finding – Interpretation of statuses
ET020
PROGRAMMING THE STEERING WHEEL ANGLE SENSOR
NOTESNote:
Deal first with DF038 Angle sensor.
Special note:
Every time the ignition is switched on, status ET020 is NOT PROGRAMMED.
Programming is performed automatically each time the vehicle is driven.
Drive the vehicle, then switch off the ignition and check that status ET020 is PROGRAMMED.
If status ET020 remains NOT PROGRAMMED after the vehicle is driven, carry out the fault finding procedure for
fault DF038 Angle sensor.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V04_ET020
EPAS
Vdiag No.: 04
MR-413-X44-36B000$670.mif