2006 RENAULT SCENIC ABS

POWER ASSISTED STEERING
Fault finding - Parameter interpretation
36B
36B - 39V6 MR-366-X84-36B000$792_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12POWER ASSISTED STEERING
Fault finding - Parameter interpretation
PR003
VEHICLE SPEED
NOTESThis signal is sent by the ABS computer to the multiplex network.
The vehicle speed signal can adapt the steering assistance to the vehicle speed.
PR003 must be equal to the actual vehicle speed, within 6 mph (10 km/h).
If the parameter does not match the actual vehicle speed:
–run fault finding on the multiplex network using the diagnostic tool,
–consult the interpretation of faults DF033 Multiplex network and DF057 Vehicle speed multiplex signal.
If the fault is still present, contact the Techline.
Note:
If the vehicle speed multiplex signal is absent or invalid, the value displayed on the tool is 0 or a fixed value
(depending on the configuration).
AFTER REPAIRCarry out a road test, followed by a check with the diagnostic tool.
DAETRW_V04_PR003/DAETRW_V08_PR003/DAETRW_V06_PR003/DAETRW_V0C_PR003 /
DAETRW_V12_PR003
MR-366-X84-36B000$792_eng.mif

POWER ASSISTED STEERING
Fault finding - Parameter interpretation
36B
36B - 40V6 MR-366-X84-36B000$792_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
PR012
CURRENT ABSORBED BY THE MOTOR
NOTESNone
Parameter PR013 indicates the stipulated current setpoint for the steering motor.
This current depends:
–on the vehicle speed,
–on the torque applied to the steering wheel.
Parameter PR012 indicates the current actually consumed by the steering motor.
The value of parameter PR013 Setpoint for current absorbed by motor should be almost equal to the value of
parameter PR012 Current absorbed by motor.
If the parameters do not match the values indicated in the Conformity check, consult the interpretation of fault
DF035 Variable power assisted steering motor.
AFTER REPAIRCarry out a road test, followed by a check with the diagnostic tool.
DAETRW_V04_PR012/DAETRW_V08_PR012/DAETRW_V06_PR012/DAETRW_V0C_PR012 /
DAETRW_V12_PR012

POWER ASSISTED STEERING
Fault finding - Parameter interpretation
36B
36B - 41V6 MR-366-X84-36B000$792_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
PR013
SETPOINT FOR CURRENT ABSORBED BY THE MOTOR
NOTESNone
Parameter PR013 indicates the stipulated current setpoint for the steering motor.
This current depends:
–on the vehicle speed,
–on the torque applied to the steering wheel.
Parameter PR012 indicates the current actually consumed by the steering motor.
The value of parameter PR013 Setpoint for current absorbed by motor should be almost equal to the value of
parameter PR012 Current absorbed by motor.
If the parameters do not match the values indicated in the Conformity check, consult the interpretation of fault
DF035 Variable power assisted steering motor.
AFTER REPAIRCarry out a road test, followed by a check with the diagnostic tool.
DAETRW_V04_PR013/DAETRW_V08_PR013/DAETRW_V06_PR013/DAETRW_V0C_PR013 /
DAETRW_V12_PR013

POWER ASSISTED STEERING
36B
36B - 46V6 MR-366-X84-36B000$924_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12POWER ASSISTED STEERING
Fault finding - Fault Finding Chart
ALP1 No dialogue with the computer
NOTESNone
Check the vehicle's battery voltage.
Repair if necessary.
Try the diagnostic tool on another computer on the same vehicle, or on a different vehicle.
Check the condition of the 5A fuse on the UPC (shared between Electric power-assisted steering and Airbag) and
attempt to run fault finding on the system.
If the condition of the fuse is not the cause, carry out the following operations:
–activate forced + after ignition feed or have the engine running,
–disconnect the Electric Power Assisted Steering power connector,
–check the connection by pushing and pulling the connector,
–try running fault finding again using the tool,
–if dialogue can be established the fault is repaired,
–if the fault is still present, apply the following procedure.
Check the electric power-assisted steering and engine compartment fuses (70A) and the passenger compartment
fuse (5A).
Check the continuity and absence of interference resistance on the wiring harness between the battery and
the variable power assisted steering computer:
Black 2-track connector track 1 + Battery
Black 2-track connector track 2 Battery 0 V
Black 8-track connector track 8 + After ignition
If there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise change the wiring.
Run fault finding on the multiplex network.
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_ALP01/DAETRW_V08_ALP01/DAETRW_V06_ALP01/DAETRW_V0C_ALP01/
DAETRW_V12_ALP01
MR-366-X84-36B000$924_eng.mif

POWER ASSISTED STEERING
Fault finding - Fault Finding Chart
36B
36B - 47V6 MR-366-X84-36B000$924_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
ALP2 Loss of vehicle assistance without warning
NOTES–apply the ALP after a complete check with the diagnostic tool,
–check the conformity of ET026 Computer calibration.
The vehicle loses the assistance function if the electric power assisted steering fuse is broken or the power supply
is lost.
The driver will feel the loss of the assistance on the steering wheel. Steering will then be the same as for unassisted
steering, manoeuvrable when driving even at low speed, but very difficult to manoeuvre when stationary.
Without its power supply, the power-assisted steering computer can no longer illuminate the warning light, and so
the driver is not made aware of the fault.
Check the electric power-assisted steering and engine compartment fuses (70A) and the passenger compartment
fuse (5A).
Change the fuses if necessary.
Check the computer supply voltage:
Black 2-track connector track 1 Vehicle earth
Black 8-track connector track 8 Vehicle earth
If there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise change the wiring.
Run a multiplex network test, and interpret any faults.
Check that the steering column and steering rack are in sound mechanical condition.
Repair if necessary.
Check that the front axle components, such as the track rod ends and shock absorber base plates, are in sound
mechanical condition.
Repair if necessary.
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_ALP02/DAETRW_V08_ALP02/DAETRW_V06_ALP02/DAETRW_V0C_ALP02/
DAETRW_V12_ALP02

POWER ASSISTED STEERING
Fault finding - Fault Finding Chart
36B
36B - 52V6 MR-366-X84-36B000$924_eng.mif
PAS
Vdiag No.: 04, 06, 08, 0C
and 12
ALP7 Assistance available for 5 minutes after switching off the ignition
NOTESThis fault may occur if the engine operating status multiplex signal is defective.
Check the vehicle's battery voltage.
Repair if necessary.
Test the multiplex network.
Check the integrity of the multiplex network (see 88B, Multiplexing).
Deal with any faults.
Check the conformity of ET023 and PR003.
Run fault finding on the injection and ABS.
Repair if necessary.
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_ALP07/DAETRW_V08_ALP07/DAETRW_V06_ALP07/DAETRW_V0C_ALP07/
DAETRW_V12_ALP07

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