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Home >> Volvo >> 1995 >> 850 Base, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Turbo >> Diagnostic Trouble Code Testing >> MOTRONIC 4.3 Control System >> Code 3-3-5: Fault In Wiring Between TCM and ECM
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Code 3-3-5: Fault In Wiring Between TCM and ECM

  1. Check status message on Volvo Scan Tool (998-8686 ). If status message is PERMANENT FAULT, SIGNAL TOO HIGH or PERMANENT FAULT, SIGNAL TOO LOW, go to next step. If status message is INTERMITTENT FAULT, SIGNAL TOO HIGH or INTERMITTENT FAULT, SIGNAL TOO LOW, go to step 3).
  2. If fault is permanent and signal is too high, check wiring between ECM terminal B26 and Transmission Control Module (TCM) terminal B15 for a short circuit to voltage. If fault is permanent and signal is too low, check wiring between ECM terminal B26 and TCM terminal B15 for a short circuit to ground.
  3. If fault is intermittent and signal is too high, check wiring between ECM terminal B26 and TCM terminal B15 for an intermittent short circuit to voltage. If fault is intermittent and signal is too low, check wiring between ECM terminal B26 and TCM terminal B15 for an intermittent short circuit to ground.
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