2007 RENAULT SCENIC sensor

POWER-ASSISTED STEERING
Fault finding – Interpretation of parameters
36B
36B-41V5 MR-372-J84-36B000$792_fra.mif
EPAS
Vdiag no.: 05, 09,
0DPOWER-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. It is positive when the steering
wheel is turned to the right and negative when it is turned to the left.
If the parameter does not conform with the values indicated in the Conformity check, refer to the interpretation of
fault DF054 Torque sensor.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V05_PR001/DAE_V09_PR001/DAE_V0D_PR001
MR-372-J84-36B000$792_fra.mif

POWER-ASSISTED STEERING
Fault finding – Interpretation of parameters
36B
36B-43V5 MR-372-J84-36B000$792_fra.mif
EPAS
Vdiag no.: 05, 09
PR007
STEERING WHEEL ANGLE DRIFT COMPENSATION
NOTESNone.
This parameter shows the correction of the angle value, implemented automatically by the EPAS computer. When
driving, if the steering wheel angle in the straight-ahead driving position is not 0˚, this parameter varies (offset from
the steering wheel angle value).
If the value of the parameter is different to 0 d˚ (± 10 d˚), check the value of parameter PR121 Steering wheel
angle with straight wheels, if PR121 > ± 10 d˚ program the steering wheel angle using command VP004 Steering
wheel sensor programming (see Configuration and programming, section C).
If PR121 < ± 10 d˚ and the vehicle is fitted with ESP, place the vehicle on a geometry test bench (front axle test
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).
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V05_PR007/DAE_V09_PR007

POWER-ASSISTED STEERING
Fault finding – Interpretation of parameters
36B
36B-46V5 MR-372-J84-36B000$792_fra.mif
EPAS
Vdiag no.: 05, 09
PR121
STEERING WHEEL ANGLE
NOTESNone.
This parameter shows the steering wheel position in relation to the programmed zero (performed by command
VP004 "Steering wheel angle sensor programming").
This parameter is positive to the right and negative to the left.
If the angle remains at 3696˚, either:
–the steering wheel angle programming has not been carried out (ET020 Steering wheel angle programming
is STATUS 1 or STATUS 2),
–or the steering wheel is outside the range ± 120 d˚ (ET020 Steering wheel angle programming is STATUS 3),
when the APC is switched on, therefore the angle is valid; the angle is STATUS 4 only if the steering wheel is
within the range ± 120 d˚. As the sensor's coverage is not complete, it needs to come within this zone to detect
its position.
Thus, when the APC is switched on, if the steering wheel is not within the range ± 120 d˚ then the angle is invalid
(ET020 Steering wheel angle programming is STATUS 3). Simply rotating the steering wheel so that it is in the
± 120 d˚ range will allow a valid angle to be found (ET020 Steering wheel angle programming is STATUS 4),
when the EPAS is operating correctly,
–the sensor is faulty DF038 Angle sensor.
If the angle remains at 3696˚, with action on the steering wheel and status ET020 Steering wheel angle
programming is STATUS 4, contact the Techline.
If the parameter does not correspond to the values shown in the Conformity check, place the vehicle on a
geometry test bench (front axle 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).
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V05_PR121/DAE_V09_PR121

POWER-ASSISTED STEERING
Fault finding – Fault Finding Chart
36B
36B-48V5 MR-372-J84-36B000$924_fra.mif
EPAS
Vdiag no.: 05, 09,
0DPOWER-ASSISTED STEERING
Fault finding – Fault Finding Chart
ALP1 No dialogue with the computer
NOTESNone.
Run fault finding on the multiplex network.
Check the voltage of the vehicle battery (the EPAS system only reacts between 10 V and 18 V).
Repair if necessary.
Try the diagnostic tool on another vehicle.
Check:
–the connection between the diagnostic tool and the diagnostic probe (lead in good condition),
–the connection between the diagnostic sensor and the diagnostic socket (lead in good condition).
Check the condition of the EPAS fuses and their contacts:
80A BP81 Power fuse in the engine fuse box.
5A AP44 + after ignition fuse on the UPC.
Check for the presence of + 12 V battery feed on track 16, and + 12 V after ignition feed on track 1 and an earth
on track 5 and on track 4 of the diagnostic socket.
Repair if necessary.
Disconnect the two EPAS computer connectors.
Check the condition and conformity of the connectors and their clips.
Check the conformity of the electrical supplies (they must be equal to the battery voltage).
Electric Power Assisted Steering Computer Connector:
2-track connector track 1+ battery feed
2-track connector track 2Earth
8-track connector track 8+ After ignition
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the wiring harness between
the diagnostic socket and the Electric Power Assisted Steering computer connector.
Electric Power Assisted Steering Computer Connector:
8-track connector track 5 track 14 Diagnostic socket
8-track connector track 7 track 6 Diagnostic socket
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V05_ALP1/DAE_V09_ALP1/DAE_V0D_ALP1
MR-372-J84-36B000$924_fra.mif

POWER-ASSISTED STEERING
Fault finding – Fault Finding Chart
36B
36B-51V5 MR-372-J84-36B000$924_fra.mif
EPAS
Vdiag No.: 05, 09
ALP4The steering wheel does not return by itself to the centre at low
speed: steering wheel return to centre point inactive
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
Check that the casing under the steering wheel does not rub on the steering column or steering wheel.
Check the pressure and condition of the tyres, the condition of the joints and the front axle geometry.
Check the vehicle battery voltage.
Check the charge circuit if necessary.
Refer to 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).
Refer to parameters PR121 Steering wheel angle which must be in the range - 10 d˚ < X < 10 d˚ and PR007
Steering wheel angle offset compensation which must be in the range - 10 d˚ < X < 10 d˚.
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".
If parameters PR121, PR007 and status ET020 listed above are not in conformity:
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 REPAIRPerform a test using the diagnostic tool.
DAE_V05_ALP4/DAE_V09_ALP4

POWER-ASSISTED STEERING
Fault finding – Fault Finding Chart
36B
36B-55V5 MR-372-J84-36B000$924_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
ALP8Assistance available but Check Steering warning message
displayed and Service indicator light continuously lit
NOTESNone.
Check the vehicle battery voltage and the condition of the electric power-assisted steering connector.
Repair and check the charge circuit if necessary.
Vdiag 05 and 09: Check status ET020 Steering wheel angle programming which should be STATUS 4. If not,
program the steering wheel angle sensor VP004 Steering wheel angle programming (see Configuration and
programming).
If the fault is still present, contact the Techline.
AFTER REPAIRPerform a test using the diagnostic tool.
DAE_V05_ALP8/DAE_V09_ALP8/DAE_V0D_ALP8

POWER-ASSISTED STEERING
Fault finding – Fault Finding Chart
36B
36B-56V5 MR-372-J84-36B000$924_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
ALP9 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 pressure and condition of the tyres, the condition of the joints and the front axle geometry.
Repair if necessary.
Vdiag 05 and 09:
Refer to 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).
Refer to parameters PR121 Steering wheel angle which must be in the range - 10 d˚ < X < 10 d˚ and PR007
Steering wheel angle offset compensation which must be in the range - 10 d˚ < X < 10 d˚.
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 parameters PR121, PR007 and status ET020 listed above are not in conformity:
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 REPAIRPerform a test using the diagnostic tool.
DAE_V05_ALP9/DAE_V09_ALP9/DAE_V0D_ALP9