Diagnostic Procedure
TCM MESSAGES NOT RECEIVED SYMPTOM CHART
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | With the DRBIII®, erase DTCs. Cycle the ignition switch from on to off and then back to on. Turn the Navigation System on and try to select a location. With the DRBIII®, read DTCs. Does the DRBIII® display TCM MESSAGES NOT RECEIVED? No --> The condition is not present at this time. Monitor DRBIII® parameters while wiggling the related wire harness. Refer to any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wiring harness and connector terminals. Perform BODY VERIFICATION TEST - VER 1 . Yes --> Go To 2 |
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| 2 |
NOTE:
Diagnose and repair any TCM DTCs before proceeding with this test. Turn the ignition on, engine not running.With the DRBIII®, monitor the Park/Neutral Position Switch input state.Move the gear selector through all gear positions.Does the DRBIII® display Park/Neutral and Drive/Reverse in the correct gear positions?Yes --> Replace the Navigation Unit in accordance with the Service Information.Perform BODY VERIFICATION TEST - VER 1
.No --> Refer to *CHECKING PARK/NEUTRAL SWITCH OPERATION in the TRANSMISSION - NGC article.Perform BODY VERIFICATION TEST - VER 1
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