Renault Scenic 3 Chassis. Manual - part 24

36B

-

1

POWER ASSISTED STEERING

Description

36B

Assistance varies according to vehicle speed.

Electric power steering computer

101938

3

2

1

5

4

(1)

Electric power assisted steer ing
computer  fitted with torque and
angle sensor

(2)

Electric stepper motor with worm
screw

(3)

Reducer sprocket

(4)

Inter mediate shaft

(5)

Steering column universal joint
in passenger compartment

IMPORTANT

- Never carry out work on the constituent compo-

nents of the electric power assisted steering
column assembly.

- If a mechanical fault finding procedure on the func-

tion requires two people, the battery must be dis-
connected.

103746

3

11

2

10

1

9

7

8

6

5

4

36B

-

2

POWER ASSISTED STEERING

Description

36B

Reference

Description

Inputs

1

Vehicle speed signal (sent by the ABS system computer)

2

Heat engine status signal (running, stationary, under starter or stalled)

3

CAN bus status signal

4

Diagnostic socket

5

+ after ignition feed

6

Power supply (permanent +)

Outputs

7

Angle sensor signal (electronic stability program signal)

8

Instrument panel signals

9

Diagnostic socket

Reference

Description

10

CAN connection

11

Wire connection

WARNING

In the event of a malfunction, the onboard computer 
displays the warning messages:

- « Check steering » message, with the « Service »

warning light lit continuously,

- « Faulty  steering » message, with the « Stop »

warning light lit continuously,

- flashing (at a frequency of 8 Hz) of the « Service »

warning light indicates that the steering wheel
angle is not calibrated (blank computer).

Note:

During fault finding, the « Service » warning light
flashes at a frequency of 2 Hz.

36B

-

3

POWER ASSISTED STEERING

Steering rack

36B

REMOVAL

Remove the front axle sub-frame (see  Front axle
assembliesSection).

Remove the steering rack.

REFITTING

Torque tighten the steering rack - sub-frame
mounting bolts  (10.5 daNm).

Proceed in the reverse order to removal.

Equipment required

Diagnostic tool

Tightening torques

m

steering rack - sub-
frame mounting bolts 

10.5 daNm

IMPORTANT

Do not grip lower arm with a lifting system.

WARNING

- The sub-frame, arm and steering rack moun-

tings must be replaced.

- Position a 10 mm thick shim between the radia-

tor cross member and the sub-frame to tighten
the radiator cross member mountings to the
recommended torque.

WARNING

Connect the battery; carry out the necessary pro-
gramming ( BatterySection).

Adjust the axle assemblies ( General Vehicle
InformationSection).

Program the torque and angle sensor using the
Diagnostic tool (see fault finding manual).

Note:

Be sure to initialise the discharge bulb system (if
fitted on vehicle; Section Electrical equipment).

36B

-

4

POWER ASSISTED STEERING

Intermediate shaft

36B

CHECKING

These vehicles are fitted with a non-removable
« intermediate shaft - steering wheel shaft - steering
column » assembly. If it is not possible to fit the uni-
versal joint eccentric bolt, or after an impact, check
that the length of the shaft is correct.

If the length of the intermediate shaft is incorrect, re-
place the steering column assembly, (Section Power
assisted steering, Steering column,  page 36B-5).

Check that: L = 313.90 +/- 1 mm

WARNING

Never pull the intermediate shaft (after an
impact).

92218