Action: Check the cables and connectors between central ECU and TCM (including check for chafing damage). Disconnect central ECU and TCM. Check the cables and connectors for the pressure sensor for short cuts and interruptions, resistance of TCM supply and pressure sensor supply should be less than 3 [Ohm]. If higher then there is an interruption on wire. Resistance between pressure sensor supply connection and all wires of different components on the same connector and to vehicle ground should be larger than 200 [kOhm]. If no fault is found, then replug cable again, activate Aftermarket diagnostic mode and check the voltages between the ECU pins (Voltage of TCM supply should be in range UB-3..UB+3 [V]. Voltage difference should be in range 4.5..5.5 [V] between TCM sensor supply and sensor ground). If the measured voltages are not in the given range replace TCM. If there a still an active fault (same fault code), replace the ECU.

Diagnostic depth