TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Inspect the Left Rear Wheel Speed Sensor and Connector.
Is the Sensor or Connector Damaged?
All
Yes
→
Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Go To
4
4
Turn the ignition off.
Inspect the Tone Wheel for damaged or missing teeth, cracks, or looseness.
Note: The Tone Wheel Teeth should be perfectly square, not bent or nicked.
Is the Tone Wheel OK?
All
Yes
→
Go To
5
No
→
Replace the Tone Wheel.
Perform ABS VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Using a Feeler Gauge, measure the Wheel Speed Sensor Air Gap.
NOTE: The Air Gap should be checked in at least four places on the Tone
Wheel.
Is the Air Gap between 0.42 mm - 1.71 mm (0.017
9 - 0.0689) ?
All
Yes
→
Go To
6
No
→
Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Inspect the wheel bearings for excessive runout or clearance.
Note: Refer to the appropriate service information, if necessary, for proce-
dures or specifications.
Is the bearing clearance OK ?
All
Yes
→
Go To
8
No
→
Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
7
Turn the ignition off.
Visually inspect wheel speed sensor.
Visually inspect tone wheel.
Visually inspect wiring harness.
Visually inspect brakes for locking up due to lining contamination or overheating.
Inspect all Components for defects which may cause a Signal DTC to set.
Is any Component Damaged?
All
Yes
→
Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Go To
8
31
BRAKES (CAB)
LEFT REAR SENSOR SIGNAL FAILURE —
Continued