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 MANUALSSAAB19959000 CS, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 12 (ENGINE CONTROLS - SYSTEM/COMPONENT TESTS)COMPUTERIZED ENGINE CONTROLSELECTRONIC CONTROL MODULE (ECM) (9000 SERIES WITH MOTRONIC SYSTEM)GROUND CIRCUIT
1995 Saab 9000 CS, Standard
Ground Circuit
1995 Saab 9000 CS, StandardSECTION Ground Circuit
WARNING: This page is about a different car, the 1996 Saab 9000. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Connect negative lead of ohmmeter to ground. Backprobe ECM terminals No. 28, No. 34, No. 55 and No. 71 (Black wires). Resistance should be zero ohms for each wire. If resistance is as specified, go to next step. If resistance is not as specified, repair open circuit to ground.
- Connect negative lead of DVOM to a good ground. Backprobe each terminal specified in step 1). With vehicle running, DVOM should indicate less than one volt. If voltage is not as specified, inspect for open circuit, corrosion, or loose connection on appropriate ground lead.
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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.