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 MANUALSSAAB1995900 S, 2D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 12 (ANTI-LOCK BRAKE SYSTEM)DIAGNOSTIC TESTSDTC B1540
1995 Saab 900 S, 2D Hatchback, Automatic
DTC B1540
1995 Saab 900 S, 2D Hatchback, AutomaticSECTION DTC B1540
WARNING: This page is about a different car, the 1996 Saab 900. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect ABS ECM connector. Turn ignition on. Check voltage between battery positive terminal and ABS ECM connector terminals No. 17 and 18. See Figure . If .5 volts or less is present, go to next step. If greater than .5 volts is present, repair Red wire between ABS ECM terminals No. 17 and 18, and fuse No. 2.
- Erase DTC. Test drive vehicle at various speeds for 5 minutes. If DTC reoccurs, replace ABS ECM.
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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.