This table is used for all retained accessory power (RAP) relay and RAP serial data controlled accessories which remain active after RAP has timed out. The RAP relay system can malfunction separately from the serial data controlled RAP system and the serial data controlled RAP system can malfunction separately from the RAP relay. If multiple accessories are not exhibiting an "On After Time-out" symptom, either on the RAP relay controlled circuit or the serial data controlled circuit or both, the malfunction is in a particular device and not in the RAP control system. Refer to Control Module References .
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Power Moding Schematics Connector End View Reference: Master Electrical Component List This table will diagnose accessories that are controlled by the retained accessory power (RAP) system and will not power down after the RAP system has commanded them to enter the OFF power mode. | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 |
Does the data displayed on the scan tool correlate with an open or closed state? | Go to Step 3 | |
3 | Refer to Retained Accessory Power (RAP) Description and Operation . Do only the devices powered by the RAP relay exhibit this symptom? | Go to Step 5 | Go to Step 4 |
4 |
Does the scan tool display the RAP/Rap Unlock power mode for Twenty minutes then time-out and display Off-Awake or the OFF power mode? | Go to Diagnostic Aids | Go to Step 9 |
5 |
Do the power windows or sunroof operate? | Go to Step 6 | Go to Step 7 |
6 | Repair the short to battery positive voltage in the RAP relay output circuit . Refer to Wiring Repairs Did you complete the repair? | Go to Step 11 | -- |
7 | Using a test lamp, probe the RAP relay control circuit at the RAP relay socket. Does the test lamp illuminate? | Go to Step 9 | Go to Step 8 |
8 | Replace the RAP relay. Did you complete the replacement? | Go to Step 11 | -- |
9 | Check for lose connections and the proper terminal tension at the BCM harness connectors. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
10 |
Important: Perform the setup procedure for the new BCM. Refer to Control Module References Replace the BCM. Refer to Control Module References . Did you complete the replacement? | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |