With TCS/ABS 5.3

Wheel Sensor Rear Left. Signal Incorrect
Fault symptoms
ABS, brakes and central warning lamps are on.
TCS OFF indicator lamp is on.
No ABS or TCS function.

Conditions
^ Speed signal not present for longer than 10 ms when vehicle speed exceeds 40 km/h (25 mph).
^ Speed signal incorrect if vehicle speed exceeds 12 km/h (7.5 mph).

agnostic help
^ A reading of the rear left wheel speed sensor can be obtained with the diagnostic tool.
- Select "Read values".
- Select " Wheel Speed Rear Left".

Current wheel speed in km/h (mph) is displayed.
^ With the rear wheels of the car raised, the diagnostic tool should read approximately 5 km/h (3.1 mph) if the rear left wheel is rotated by hand at about 1 rev./second.

Diagnostic procedure
1. Checking Wheel Speed




^ Contact TC/ABS control module





^ Drive the car at a steady speed





^ Read Value:
Wheel Speed Rear Left TC/ABS control module

Is the value for the RL wheel speed correct?

YES
Go To Step

NO
Go To Step 2

2. Checking The Mechanical Quantities





^ Check that the tire pressure, wheel size and wheel bearing play are OK.

Is the function correct?

NO
Go To Step 3

YES
Go To Step 4

3. Rectify The Fault

When Repair is Complete
Go To Step 4

4. Final Check





^ Clear the diagnostic trouble codes in all systems.





^ Carry out a drive cycle
Drive the car at varying engine loads and engine rpm for five minutes.

^ Evaluate the drive cycle:





^ Check that the diagnostic trouble code has not recurred

Is the function correct?

YES
Go To Step 5

NO
Go To Step 6

5. Final Check
The steps taken to correct the fault were correct.
^ Diagnosis is complete.

6. Final Check
See Before changing a control module, refer to General Fault Diagnosis.
^ Diagnosis for this fault code is complete.