Important Preliminary Checks Before Starting
- Review the Keyless Entry System Description and Operation in order to familiarize yourself with the system functions. Refer to Keyless Entry System Description and Operation . Review the Garage Door Opener (GDO) System Description and Operation in order to familiarize yourself with the system functions. Refer to Garage Door Opener Description and Operation
- Perform the Diagnostic System Check - Vehicle
in Vehicle DTC Information before using the Symptom Tables in order to verify that all of the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data link.