- If lost communication or voltage DTCs exist in the PSCM or other vehicle modules, possible sources can be:
- Fuse(s)
- Wiring, terminals or connectors
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Go to PINPOINT TEST A |
- If DTCs other than lost communication or voltage exist in the PSCM or other vehicle modules, the possible sources can be:
- Module internal fault - PSCM
- Module internal fault - other modules
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- REFER to the appropriate DTC Chart and CARRY OUT the diagnostics listed for the DTC.
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- If no DTCs are present in the PSCM or other vehicle modules, the concern could be indicated by a TSB or a SSM.
- TSBs existing for concern
- SSMs existing for concern
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- CHECK OASIS for associated TSBs and SSMs. FOLLOW all TSB and SSM instructions.
- If there are no DTCs present and there are no TSBs or SSMs associated with this concern and the concern cannot be verified, RETURN the vehicle to the customer.
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