Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Battery voltage must remain above 9.6 V for RAP to operate properly.
Radio RAP
- With all passenger doors closed, observe the courtesy lamps while opening and closing the driver door. The courtesy lamps should illuminate when the door is opened and turn off approximately 30 seconds after closing the door.
- If the courtesy lamp operation is incorrect from the drivers door, refer to Courtesy Lamps Malfunction .
- If courtesy lamp operation is correct, and the radio is the only RAP concern, replace the radio.
Relay RAP
- Ignition ON, observe the following scan tool parameters in the BCM while opening and closing each vehicle door. The reading should change appropriately between Door Closed/Door Ajar.
- Driver Door Ajar Sw.
- Left Rear Door Ajar Sw.
- Passenger Door Ajar Sw.
- Right Rear Door Ajar Sw.
- If any parameter does not change as specified, refer to Door Ajar Indicator Malfunction (w/o AN3) or Door Ajar Indicator Malfunction (w/AN3) .
- Command the scan tool Accy/RAP Relay OFF. Attempt to operate any RAP relay controlled component within 5 seconds. The component should not operate.
- Command the scan tool Accy/RAP Relay ON. Attempt to operate any RAP relay controlled component within 5 seconds. The component should operate.
- Ignition ON, all doors closed. Observe the scan tool parameter Accy/RAP Relay Command. Ignition OFF, key removed, the reading should remain ON for approximately 10 minutes then change to OFF.
- If the parameter does not respond as specified, replace the BCM.