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)BRAKESTRACTION CONTROLTRACTION CONTROL SYSTEMDIAGNOSIS & TESTINGRETRIEVING CODES (TC/ABS SYSTEM)BRAKE FLUID LIGHT
1993 Saab 9000 CD, 2.3 B, Standard
BRAKE FLUID Light
1993 Saab 9000 CD, 2.3 B, StandardSECTION BRAKE FLUID Light
- Check if light is working by turning ignition switch to a position between START and DRIVE. If light does not come on, check bulb. If light does not come on if pressure is low, go to next step. If light does not come on when fluid level is low, go to step 4).
- Disconnect brake fluid pressure warning switch. Turn ignition on. Check for battery voltage at pressure switch connector terminal No. 2 (White wire). If voltage is not present, check White wire for continuity between pressure switch connector terminal No. 2 and instrument panel connector terminal No. 11.
- If voltage is present at pressure switch connector terminal No. 2, turn ignition off and depressurize system. Ensure continuity is present between pressure warning switch connector terminals No. 1 and 2. If continuity is not present, replace switch. If continuity is present and switch is okay, check Black wire between pressure switch connector terminal No. 1 and ground.
- Ensure level warning switch connector is disconnected. See Fig 1. Turn ignition on. Check for battery voltage at reservoir switch connector terminal No. 4 (White wire). If voltage is not present, check White wire between reservoir switch connector terminal No. 4 and instrument panel connector terminal No. 11. If voltage is present, turn ignition off and go to next step.
- Check level switch by ensuring circuit is closed when float is pressed down, and circuit is open when float is up. If float does not operate to specification, install new reservoir. If float does operate to specification, check Black wire at terminal No. 3 for good continuity to ground.
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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.