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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 7 (CRUISE CONTROL SYSTEM)SELF-DIAGNOSTIC SYSTEMDIAGNOSTIC SYSTEM CHECK
2000 Saturn SC2 Automatic, MP6
Diagnostic System Check
2000 Saturn SC2 Automatic, MP6SECTION Diagnostic System Check
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.
- Ensure battery condition, cold cranking amperage and reserve capacity meet specifications. Replace as necessary. Install scan tool. If scan tool powers up, go to next step. If scan tool does not power up, see BODY CONTROL MODULES -- CORVETTE article.
- Turn ignition on, engine off. Try to establish scan tool communication with Powertrain Control Module (PCM) and Body Control Module (BCM). If communication with PCM and BCM is established, go to next step. If communication with PCM and BCM is not established, see BODY CONTROL MODULES article.
- Select display DTC function for BCM and then PCM. Record all displayed DTCs, status of displayed DTCs, and module that set DTC. If DTCs are displayed, go to next step. If no DTCs are displayed, go to CRUISE CONTROL INOPERATIVE under SYMPTOM TESTS.
- If any DTCs are displayed beginning with "U", see BODY CONTROL MODULES - CORVETTE article. If no "U" type DTCs are displayed, go to next step.
- If DTC B0605 is displayed, see BODY CONTROL MODULE DIAGNOSTIC SYSTEM CHECK in BODY CONTROL MODULES - CORVETTE article. If DTC B0605 is not displayed, go to next step.
- If any DTCs are displayed beginning with "P", see SELF-DIAGNOSTICS -- GASOLINE -- 5.7L "F" & "Y" BODIES article in ENGINE PERFORMANCE.
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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.