POWER ASSISTED STEERING
Fault finding - Fault Finding Chart
36B
36B - 54V6 MR-366-X84-36B000$924_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
ALP9The Service indicator light and the Check Steering message
come on straight away
NOTESApply the fault finding procedure only on Vdiag 06 and 12.
Check the conformity of the battery voltage and carry out fault finding on the charge circuit if necessary.
Check the condition and conformity of the ABS computer connector and its clips.
Check that the ABS computer has an electrical feed (see wiring diagram for the ABS fitted on the vehicle).
Disconnect the 8-track electric power assisted steering computer connector.
Check the condition and conformity of the connector and its clips.
If there is a repair procedure (see Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
Carry out fault finding on the multiplex network (see 88B, Multiplexing).
Check the insulation, continuity and the absence of interference resistance on the following connections:
Electric power-
assisted steering
computer (8-track
connector)UCH
(PE2 40-track
connector)Protection and
Switching Unit (CT1
12-track connector)
track 7 track 8
track 5 track 18
track 6 track 8
track 16 track 1
track 3 ABS computer
track 2 ABS computer
(see wiring
diagram of the ABS
system installed in
the vehicle)
If there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the connections previously checked are correct, contact the Techline.
AFTER REPAIRCarry out a check using the diagnostic tool.
DAETRW_V04_ALP09/DAETRW_V06_ALP09/DAETRW_V08_ALP09/DAETRW_V0C_ALP09/
DAETRW_V12_ALP09
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
