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Cluster Lamp Failure: Testing

  1. Turn the ignition on. With the DRBIII®, read DTCs. Are there any instrument cluster or ABS DTCs present? Yes, Refer to the appropriate category for the related symptom(s). Perform ABS VERIFICATION TEST VER-1 . No, Go to next step.
  2. Turn the ignition off. Perform the key-on bulb check. Does the ABS warning indicator light and then go out after a few seconds? Yes, go to next step. No: Light remains after bulb check. Replace the Controller Anti-Lock Brake. Perform ABS VERIFICATION TEST VER-1 . No: Indicator never comes on. Go to step  4.
    3. NOTE: The DRBIII® communication with the CAB must be operational for the result of this test to be valid.
  3. Turn the ignition off. Remove ABS Valve fuse from PDC. Perform the Key-On Bulb Check. Does the ABS indicator remain on after the bulb check? Yes, test is complete. No, replace the Controller Anti-Lock Brake. Perform ABS VERIFICATION TEST VER-1 .
    4. NOTE: The following step will initiate the instrument cluster self-test.
  4. Turn the ignition off. Press and hold the odometer reset button. Turn the ignition to RUN. Observe the instrument cluster indicators. Release the odometer reset button. Did the ABS indicator illuminate during the instrument cluster self-test? Yes, replace the Controller Anti-Lock Brake. Perform ABS VERIFICATION TEST VER-1 . No, replace the instrument cluster. See appropriate GAUGES & INSTRUMENT PANELS article. Perform ABS VERIFICATION TEST VER-1 .
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