Diagnostic System Check
DIAGNOSTIC SYSTEM CHECK - ACCESSORY DELAY MODULETEST DESCRIPTION
Step 1:
Steps 2-4:
Steps 5-8:
The numbers below refer to the step numbers 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.
3. This step tests for valid system power moding in all ignition switch positions.
4. The presence of DTCs indicate a malfunction within the modules that control the retained accessory power (RAP) feature.
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.
6. The presence of the following DTCs indicate an internal module malfunction within the modules that control the RAP feature:
- B1000
- B1652
- B1656
- B1658
7. The presence of DTCs B1982 or B1983 indicate a high or low voltage condition.
8. A fault with a door switch will prevent the RAP system from functioning properly.