warning lights RENAULT SCENIC 2007 J84 / 2.G Power Assisted Steering Workshop Manual
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Page 49 of 59
POWER-ASSISTED STEERING
Fault finding – Fault Finding Chart
36B
36B-49V5 MR-372-J84-36B000$924_fra.mif
EPAS
Vdiag no.: 05, 09,
0D
ALP2 Loss of vehicle assistance without warning
NOTESOnly consult this customer complaint after a complete check with the diagnostic tool.
The vehicle is no longer assisted if the Electric Power Steering fuse is damaged or supply is lost. The steering is
equivalent to manual steering, manoeuvrable when driving even at low speeds, but very difficult to manoeuvre
when stopped.
Since it is no longer being supplied, the EPAS computer is not capable of lighting the warning light, but the
instrument panel lights the STOP warning light + Message 4 seconds after the loss of the feed causing the loss
of assistance.
The driver will only become aware of the fault through noticing the loss of assistance at the steering wheel.
Check the fuses for the electric power-assisted steering:
Power fuse 80A BP81 in the engine fuse box.
5A AP44 + after ignition fuse on the UPC.
Check the condition of the electric power-assisted steering connectors and repair if necessary.
Check that the electrical feeds to the computer are correct:
2-track connector track 2vehicle earth
2-track connector track 1+ battery feed
8-track connector track 8+ after ignition feed
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the connections between the electric
power-assisted steering computer and the instrument panel.
8-track connector track 6 track 30 of the instrument panel
8-track connector track 4 track 29 of the instrument panel
Check that the steering column and steering rack are in sound mechanical condition.
Repair if necessary.
Make sure 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 REPAIRPerform a test using the diagnostic tool.
DAE_V05_ALP2/DAE_V09_ALP2/DAE_V0D_ALP2