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 MANUALSSAAB20029-3 SE, 2D CONVERTIBLE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSTEST READINGS, CONTROL MODULE CONNECTIONSELECTRONIC CONTROL MODULEGROUND CIRCUIT
2002 Saab 9-3 SE, 2D Convertible, Automatic
Ground Circuit
2002 Saab 9-3 SE, 2D Convertible, AutomaticSECTION Ground Circuit
- Turn ignition off. Measure resistance between specified ECM terminal and ground. See GROUND TERMINAL IDENTIFICATION . Resistance should be zero ohms. If resistance is as specified, go to next step. If resistance is not as specified, repair open circuit between ECM and ground. See WIRING DIAGRAMS article.
- Start engine. Measure voltage between specified ECM terminal and ground. See Figure. If one volt or more is present, inspect for open circuit, corrosion, or loose connection on appropriate circuit.
GROUND TERMINAL IDENTIFICATION
| Engine | Terminal (Wire Color) |
|---|---|
| 2.0L & 2.3L | No. 25 (Black), 47 (Black) & 62 (Black) |
| 3.0L | No. 25 (Black) & 47 (Black) |
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.