Circuit/System Verification
- Ignition ON.
- Verify all available keys/transmitters are correct for the vehicle. This can be accomplished by comparing the part number that is laser etched on the key/transmitter to the part number listed in the parts catalog.
- If a key/transmitter is not correct
Replace the appropriate key/transmitter.
- If all keys/transmitters are correct
- If a key/transmitter is not correct
- Verify the scan tool Key Part Number parameter displays a Key Part Number when turning the ignition ON with each key/transmitter.
- If a Key Part Number is not read
Replace the appropriate key/transmitter.
- If a Key Part Number is read for each key/transmitter
- If a Key Part Number is not read
- All OK.