Section 388 (Retained Accessory Power System)
WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Retained Accessory Power
- Diagnostic System Check - Retained Accessory Power
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B1477: BCM Detects No Voltage at RAP Relay Control Circuit
- DTC B1478: Short To Battery In RAP Relay Control Circuit
- Symptoms - Retained Accessory Power
- Retained Accessory Power (RAP) On After Timeout
- Retained Accessory Power (RAP) Inoperative
- Description and Operation