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 MANUALSSAAB19939000 CD, 2.3 B, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGIGNITION CHECKSEZK IGNITION SYSTEM (900 SERIES)HALL EFFECT SENSOR
1993 Saab 9000 CD, 2.3 B, Standard
Hall Effect Sensor
1993 Saab 9000 CD, 2.3 B, StandardSECTION Hall Effect Sensor
- Make all checks at back of electrical connectors for ignition Electronic Control Module (ECM) with ignition on.
- To test sensor supply voltage, connect voltmeter between terminals No. 10 and 4 of ECU on 900 Series, or terminals No. 6 and 15 on 9000 Series. See th eWIRING DIAGRAMS article in this section. Battery voltage should exist.
- To test signal from Hall Effect sensor to ECM, connect voltmeter between terminals No. 10 and 24 of ECM on 900 Series, or terminals No. 15 and 23 on 9000 Series. See the WIRING DIAGRAMS article in this section. Slowly turn engine by hand. Voltmeter indication should vary from 0.4-3.0 volts as Hall Effect sensor shutter opens and closes.
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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.