Diagnostic System Check - Cruise Control

TEST DESCRIPTION

Steps 1-3:

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.
^ The ability of the control module(s) to communicate through the serial data circuit
^ The identification of any stored diagnostic trouble codes (DTCs) and their status
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
3. The symptom list in Symptoms will determine the correct diagnostic procedure to use.