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 Contact resistance and oxidation .
Check the power supply cable between control module terminal #A59 (#A59) and transmission connector terminal #A2. Check for an open-circuit according to Open-circuit, permanent faults . Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .
Check the signal cable between control module terminal #A41 (#A41) and transmission connector terminal #A1. Check for an open-circuit according to Open-circuit, permanent faults . Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .
HINT: With the control module connected, the ignition on and a voltmeter connected between transmission connector terminals #A2 and #A1 (control module side), the voltage must be 1-3 V below Ubat.
Remedy as necessary.
Other information:
- To connect the breakout box, see Connecting the breakout box
- To disconnect the control module, see Transmission control module (TCM), replacing
- To disconnect the transmission connectors, see Connectors, transmission, disconnecting / connecting
- To check and replace the transmission speed sensor, see Replacing the transmission input speed sensor and the transmission output speed sensor
- For information about signals, see Signal description. Transmission control module (TCM) .
- Continue
Refer to Verification