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Home >> Volvo >> 1995 >> 850 GLT, 4D Sedan, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Controls - Tests W/Codes - Non-Turbo (M/T) - MOTRONIC 4.4) >> Circuit Tests >> DTC 335 - Fault In Wiring Between TCM & ECM

DTC 335 - Fault In Wiring Between TCM & ECM

WARNING: This page is about a different car, the 1996 Volvo 850. However, it is still accessible from the selected car via links, so may be relevant.
  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 connector 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 connector 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 connector terminal B26 and TCM terminal B15 for an intermittent short circuit to voltage or an intermittent open circuit. If fault is intermittent and signal is too low, check wiring between ECM connector terminal B26 and TCM terminal B15 for an intermittent short circuit to ground.
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