Diagnostic System Check

DIAGNOSTIC SYSTEM CHECK

TEST DESCRIPTION

Steps 1-4:

Steps 5-7:

The numbers 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 symptoms list in Symptoms will determine the correct diagnostic procedure to use.
5. 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.
7. The presence of either of these DTCs indicates lack of power being supplied through Retained Accessory Power (RAP), that will inhibit sunroof operation.
The specified procedure will compile all the available information before tests are performed.