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 MANUALSSAAB1993900 S, 2D HATCHBACK, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM/COMPONENT TESTSCOMPUTERIZED ENGINE CONTROLS (9000 SERIES TURBO)ELECTRONIC CONTROL MODULE (ECM)POWER CIRCUIT
1993 Saab 900 S, 2D Hatchback, Standard
Power Circuit
1993 Saab 900 S, 2D Hatchback, StandardSECTION Power Circuit
- Check for battery voltage at terminals No. 1 (Red wire) and 48 (Red wire). If battery voltage does not exist, repair Red wires between ECM and fuse panel.
- Turn ignition on. Check for battery voltage between ECM terminal No. 60 (Green/White wire) and ground. If battery voltage does not exist, repair open in Green/White wire.
RENDER: 1.0x
NO RELATED
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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.