Initial Inspection and Diagnostic Overview

A Diagnostic System Check - Remote Kayless Entry:

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
2. Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition.
4. The presence of DTCs which begin with U indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed.
5. At this point you have determined all DTCs applicable to the Remote Keyless Entry System. Refer to Remote Keyless Entry System Inoperative Symptom Related Diagnostic Proceduresfor further Remote Keyless Entry diagnosis. Any other body control module DTCs displayed do not apply to Remote Keyless Entry and should be diagnosed in their applicable section.