Circuit/System Verification
- Verify that the vehicle key is correct for the vehicle. This can be accomplished by comparing the part number printed on the key to the appropriate part number in the parts catalog.
- If the vehicle key is incorrect
Replace the vehicle key.
- Go to next step: If the vehicle key is correct
- If the vehicle key is incorrect
- Verify the K77 Remote Control Door Lock Receiver scan tool 5 V Ignition Switch parameter displays OFF.
- If the 5 V Ignition Switch parameter does not display OFF
Refer to Vehicle Will Not Change Power Mode .
- Go to next step: If the 5 V Ignition Switch parameter displays OFF
- If the 5 V Ignition Switch parameter does not display OFF
- Operate the transmitter while observing the scan tool Key Fob Function parameter for the appropriate transmitter.
- Verify the K77 Remote Control Door Lock Receiver scan tool Key Fob Function parameter corresponds with the function selected on the transmitter.
- If the Key Fob Function parameter does not correspond with the transmitter selection
- Replace the vehicle key.
- Operate the new transmitter while observing the K77 Remote Control Door Lock Receiver scan tool Key Fob Function parameter for the transmitter.
- Verify the K77 Remote Control Door Lock Receiver scan tool Key Fob Function parameter correspond with the function selected on the transmitter.
- If the Key Fob Function parameter does not correspond with the transmitter selection
Perform Circuit/System Testing.
- Go to next step: If the Key Fob Function parameter corresponds with the transmitter selection
- If the Key Fob Function parameter does not correspond with the transmitter selection
- All OK.
NOTE:Before replacing the transmitter, inspect the transmitter battery contacts for any corrosion or damage. If no corrosion or damage is found, replace the transmitter battery and retest before replacing the transmitter.
- Go to next step: If the Key Fob Function parameter corresponds with the transmitter selection
- All OK.