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 MANUALSSATURN2000SC2 AUTOMATIC, MP6REPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULESSELF-DIAGNOSTIC SYSTEMBODY CONTROL MODULE DIAGNOSTIC SYSTEM CHECK
2000 Saturn SC2 Automatic, MP6
Body Control Module Diagnostic System Check
2000 Saturn SC2 Automatic, MP6SECTION Body Control Module Diagnostic System Check
- If vehicle on-board diagnostic system check has been performed, go to next step. If vehicle on-board diagnostic system check has not been performed, see VEHICLE ON-BOARD DIAGNOSTIC SYSTEM CHECK .
- Connect all disconnected components. Connect scan tool to DLC. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, perform TEST B: NO COMMUNICATION ON CLASS 2 DATA LINK under SYSTEM TESTS.
- Using scan tool, select DISPLAY DTC function for BCM. If no DTCs are retrieved, go to next step. If any DTCs are retrieved, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .
- Using scan tool, review any history BCM DTCs and clear all DTCs. Turn ignition switch to LOCK position. Turn ignition switch to RUN position. Using scan tool, retrieve BCM DTCs. If no DTCs are retrieved, system is okay at this time. If any DTCs are retrieved, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .
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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.