Test Requirement
- The fuses OK.
- A CAN-Bus malfunction was recognized.
- The Transmission Control Module (TCM) -J743- fuses OK.
- Battery voltage at least 12.5 volts.
- All electrical consumers such as, lights and rear window defroster, switched OFF.
- Vehicles with automatic transmission, shift selector lever into position "P" or "N".
- A/C switched OFF.
- Ground connections between engine/transmission/chassis OK.
- Ignition switched OFF.