With TCS/ABS 5.3
Wheel Sensor Front Right. 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).
Diagnostic help
^ A reading of the front right wheel speed sensor can be obtained with the diagnostic tool.
- Select "Read values".
- Select " Wheel Speed Front Right".
Current wheel speed in km/h (mph) is displayed.
- With the front of the car raised, the diagnostic tool should read approximately 5 km/h (3.1 mph) if the front right wheel is rotated by hand at about 1 rev./second.
Diagnostic procedure
1. Checking wheel speed
^ Contact TC/ABS control module
Go to Step 2
2. Checking wheel speed
^ Drive the car at a steady speed.
^ Read value: Wheel Speed Front Right (TC/ABS control module).
Is the displayed FR wheel speed correct?
NO
Go To Step 3
YES
Go To Step 7
3. Checking mechanical quantities
^ Check that the tire pressure. wheel size, wheel-bearing play and toothed wheel are OK.
Is the function correct?
NO
Go To Step 4
YES
Go To Step 5
4. Checking mechanical quantities
Rectify the fault.
When repair is complete
Go to step 7
5. Checking The Toothed Wheel Air Gap
^ The air gap between the toothed wheel and the sensor should be 0.3 - 1.3 mm.
6. Checking The Toothed Wheel Air Gap
Rectify the fault.
When repair is complete
Go to step 7
7. 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 8
NO
Go To Step 9
8. Final Check
The steps taken to correct the fault were correct.
^ Diagnosis is complete.
9. Final Check
See Before changing a control module, refer to General Fault Diagnosis.
^ Diagnosis for this fault code is complete.