Pinpoint Test
- CHECK THE C-CM DTCs
- Using a scan tool, clear the DTCs from the C-CM .
- Operate the system and check for normal operation.
- Using a scan tool, perform the C-CM self-test.
Is DTC U3000:66 recorded?
- Yes: If other C-CM DTCs
are present follow those DTCs
first.
Otherwise, GO to 2 .
- No: The system is operating correctly at this time. The DTC may have been set due to an intermittent fault condition.
- CHECK FOR ABS AND PCM DTCs
- Using a scan tool, perform the ABS module self-test and the PCM KOEO self-test.
Are any DTCs recorded?
- Yes: For ABS module DTCs
, REFER to DTC CHART: ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
.
For PCM DTCs , REFER to DTC CHART: POWERTRAIN CONTROL MODULE (PCM) .
- No: GO to 3 .
- CHECK FOR CORRECT C-CM
OPERATION
- Disconnect and inspect the C-CM connector.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the C-CM connector. Make sure it seats and latches correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
- Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new C-CM . REFER to Cruise Control Module (C-CM)
- No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.