Page 44 of 56
POWER ASSISTED STEERING
Fault finding - Parameter interpretation
36B
36B - 44V6 MR-366-X84-36B000$792_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
PR121
STEERING WHEEL ANGLE
NOTESNone
The steering wheel angle, positive to the right or negative to the left, is the position of the steering wheel relative
to the zero value set when the steering wheel angle sensor is programmed.
If the parameter is not in line with the conformity check values (- 580˚ < X < 580˚), consult interpretation of faults
DF038 or DF059 Angle sensor.
Note:
If the angle remains 0˚:
–The steering wheel angle sensor has not been calibrated (status ET020 at status 1 or 2),
–the procedure to apply after disconnecting the battery was not observed,
–a fault is present. Deal with this fault.
AFTER REPAIRCarry out a road test, followed by a check with the diagnostic tool.
DAETRW_V04_PR121/DAETRW_V08_PR121/DAETRW_V06_PR121/DAETRW_V0C_PR121 /
DAETRW_V12_PR121
Page 49 of 56
POWER ASSISTED STEERING
Fault finding - Fault Finding Chart
36B
36B - 49V6 MR-366-X84-36B000$924_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
ALP4The steering wheel does not return by itself to the centre at low
vehicle speed: steering wheel self-centring inactive
NOTES
Check the condition and pressure of the tyres, the condition of the joints and the axle geometries.
Check the vehicle's battery voltage.
Repair if necessary.
Check that the steering wheel angle sensor is correctly calibrated and consistent with the position of the steering
wheel (status ET020 at status 3 or 4 and PR121 at 0˚ ± 5˚ with wheels set straight ahead).
Program the steering wheel angle again if necessary (see VP004 Steering wheel angle sensor programming).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
DAETRW_V04_ALP04/DAETRW_V08_ALP04/DAETRW_V06_ALP04/DAETRW_V0C_ALP04/
DAETRW_V12_ALP04
Page 53 of 56
POWER ASSISTED STEERING
Fault finding - Fault Finding Chart
36B
36B - 53V6 MR-366-X84-36B000$924_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
ALP8Assistance available but Check steering warning message
displayed and Service warning light lit continuously or flashing
at 8 Hz
NOTESNone
Check the vehicle battery voltage and the condition of the system's connections.
Repair if necessary.
Check the steering wheel angle sensor programming (ET020 = STATUS 4)
If the sensor is not calibrated, program the steering wheel angle sensor (procedure VP004 Steering wheel angle
sensor programming).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
DAETRW_V04_ALP08/DAETRW_V08_ALP08/DAETRW_V08_ALP08/DAETRW_V0C_ALP08/
DAETRW_V12_ALP08
Page 55 of 56

POWER ASSISTED STEERING
Fault finding - Fault Finding Chart
36B
36B - 55V6 MR-366-X84-36B000$924_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
ALP10 The vehicle pulls to the right or to the left
NOTESNone
Check that the casing under the steering wheel does not rub on the steering column or steering wheel.
Check the tyre pressures and the condition of the joints and the steering geometry.
Repair if necessary.
Check status ET020 Steering wheel angle sensor programming, which must be STATUS 4.
Position the vehicle wheels in the straight line driving position (steering centre point).
Consult parameter PR121 Steering wheel angle which must be between - 10d˚ < X < 10d˚.
Turn the steering wheel to full right lock then to full left lock, and check that the parameter varies within the
tolerances given in the Conformity check.
Check the position of the steering wheel on the splines of the steering column.
If parameter PR121 Steering wheel angle and status ET020 Steering wheel angle sensor programming listed
above are not correct:
Place the vehicle on a front axle adjusting bench.
Position the vehicle wheels in the straight line driving position (steering centre point).
Program the steering wheel angle using command VP004 Steering wheel angle sensor programming (see
Configuration and programming).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
DAETRW_V04_ALP10/DAETRW_V08_ALP03/DAETRW_V06_ALP10/DAETRW_V0C_ALP10/
DAETRW_V12_ALP10
Page:
< prev 1-8 9-16 17-24