Checking Wiring and Sensors

Checking wiring and sensors







- Ignition off.

Check the transmission control module (TCM) and transmission input speed sensor connectors. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent faults.

Check the power supply cable between control module terminal #11 and terminal #2 on the black 2-pin transmission connector. Check for an open-circuit according to Checking wiring and terminals. Permanent faults. Check for a short-circuit to ground according to Checking wiring and terminals. Permanent faults.

Check the signal cable between control module terminal #12 and terminal #1 on the black 2-pin transmission connector (control module side). Check for an open-circuit according to Checking wiring and terminal. Permanent faults. Check for a short-circuit to ground according to Checking wiring and terminals. Permanent faults.

Remedy as necessary.

Other information:
- To connect the breakout box, see Connecting the breakout box.
- To disconnect the control module, see Replacing the transmission control module (TCM).
- To disconnect the transmission connectors, see Transmission connectors.
- To check and replace the transmission speed sensor, see Replacing the engine speed (RPM) sensor.
- For information about signals, see Signal description. Transmission control module (TCM).

Continue with Next Procedure. Verification