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Home >> Plymouth >> 1999 >> Voyager Base, 0.0 >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Communications >> Identifying Vehicle Communication Problems >> No Response From TCM

No Response From TCM

NOTE: For connector terminal identification and wiring diagrams, see BODY CONTROL COMPUTER - INTRODUCTION article. Perform VERIFICATION TEST VER-1A  after each repair.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
  1. If transmission is operating correctly, go to next step. If transmission is not operating correctly, see appropriate AUTOMATIC TRANSMISSIONS article in lemon-25(R) TRANSMISSION SERVICE & REPAIR as needed.
  2. Turn ignition off. Disconnect Transmission Control Module (TCM). TCM is located on right fenderwell, next to washer reservoir. Turn ignition on. Connect jumper wire between ground and TCM connector terminal No. 43 (Violet/Brown wire). Using scan tool, select BODY, BODY COMPUTER, then SYSTEM TEST. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
  3. Move jumper wire to TCM connector terminal No. 4 (White/Black wire). Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Black wire. If scan tool displays BUS SHORT TO GROUND, replace TCM.
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