Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSATURN2000LS1 AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 17 (BODY CONTROL MODULES)SELF-DIAGNOSTIC SYSTEMRETRIEVING DIAGNOSTIC TROUBLE CODES (DTCS)USING SCAN TOOLBODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE DEFINITIONS
2000 Saturn LS1 Automatic
Body Control Module Diagnostic Trouble Code Definitions
2000 Saturn LS1 AutomaticSECTION Body Control Module Diagnostic Trouble Code Definitions
WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODE DEFINITIONS
| DTC | Description | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| B0432 | Rear Defogger Relay Circuit (Open Or Short To Ground) | ||||||||
| B0433 | Rear Defogger Relay Circuit (Short To Voltage Or BCM Open) | ||||||||
| B0502 | Right Daytime Running Lights Relay Circuit (Open Or Short To Ground) | ||||||||
| B0503 | Right Daytime Running Lights Relay Circuit (Short To Voltage Or BCM Open) | ||||||||
| B0507 | Left Daytime Running Lights Relay Circuit (Open Or Short To Ground) | ||||||||
| B0508 | Left Daytime Running Lights Relay Circuit (Short To Voltage Or BCM Open) | ||||||||
| B0605 | BCM Internal Memory Malfunction | ||||||||
| B1000 | ECU Malfunction | ||||||||
| B2403 | Front Foglight Switch Circuit (Short To Voltage) | ||||||||
| B2408 | Rear Foglight Switch Circuit (Short To Voltage) | ||||||||
| B2482 | Back-Up Light Relay Circuit (Open Or Short To Ground) | ||||||||
| B2483 | Back-Up Light Relay Circuit (Short To Voltage Or BCM Open) | ||||||||
| B2527(1) | Horn Relay Circuit (Open Or Short To Ground) | ||||||||
| B2528(1) | Horn Relay Circuit (Short To Voltage Or BCM Open) | ||||||||
| B2567(2) | Folding Top Release Switch Circuit (Convertible Only) | ||||||||
| B2573(2) | Hatch Release Switch Circuit (Short To Voltage) | ||||||||
| B2578 | Right Front Turn Signal Monitor Circuit (Short To Voltage) | ||||||||
| B2583 | Left Front Turn Signal Monitor Circuit (Short To Voltage) | ||||||||
| B2587(1) | Column Lock/Unlock Drive "A" (Open Or Short To Ground) | ||||||||
| B2588(1) | Column Lock/Unlock Drive "A" (Open Or Short To Voltage) | ||||||||
| B2592(1) | Column Lock/Unlock Drive "B" (Open Or Short To Ground) | ||||||||
| B2593(1) | Column Lock/Unlock Drive "B" (Open Or Short To Voltage) | ||||||||
| B2597 | Traction Control/Suspension Switch Circuit (Short To Ground) | ||||||||
| B2647 | Ambient Light Sensor Circuit Low | ||||||||
| B2648 | Ambient Light Sensor Circuit High | ||||||||
| B2721(3) | PASS-Key® Detection Circuit (Out Of Range) | ||||||||
| B2722(3) | PASS-Key® Detection Circuit (Short To Ground) | ||||||||
| B2723(3) | PASS-Key® Detection Circuit (Short To Voltage Or Open) | ||||||||
| B2735(3) | PASS-Key® Programming Mode Active | ||||||||
| U1000 & U1255 | Class 2 Communication Malfunction | ||||||||
| U1001-U1254 | (4) Loss Of Communication With XXX | ||||||||
| U1300 | Serial Data Line Short To Ground | ||||||||
| U1301 | Serial Data Line Short To Battery | ||||||||
|
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.