Diagnostic Procedure
- Turn ignition off. Disconnect TCM harness connector. See Fig 1 . Disconnect ECM harness connector. See Figure or Figure . Check continuity of Purple/White wire between TCM harness connector terminal No. 5 and ECM harness connector terminal No. 26, and Pink/Black wire between TCM harness connector terminal No. 6 and ECM harness connector terminal No. 27. See Figure and Fig 2 . Also, check circuits for short to ground and short to voltage. If problem is found, repair as necessary. If problem is not found, go to next step.
- No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.