Question about 1991 Porsche 944
My 1990 944 Turbo has the same symptom. Porsche checked the ABS system using the link to the onboard computer - They identified the right rear sensor - I changed that and it still failed. Turns out it is probably the ABS pump right rear actuator. If I take off fast in a straight line I can prevent the ABS from failing.
Posted on Jan 11, 2010
Suspect abs fault. to check this use a multi-meter on voltage ac because the sesnors generates alternating current jack the vehicle up locate the sensor wires spin the wheel and see if you get voltage, do this to all four wheels. the one with no voltage is faulty. Or you can can the resistance in the winding. no resistance open circuit. hope this helps
Posted on Aug 19, 2009
The ABS sensors need replaced. they are located at each wheel
Posted on Jun 28, 2009
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Posted on Jan 02, 2017
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Oct 23, 2017 | 1986 Porsche 944
On vehicles equipped with antilock brakes (ABS), a second warning light is provided to warn if a problem occurs within the ABS system. The ABS lamp comes on when the ignition is turned on for a bulb check, then goes out after the engine starts. If the ABS warning light remains on or comes on while driving, it indicates a fault has occurred in the ABS system.
What happens next depends on the nature of the fault. On most applications, the ABS system disables itself if the ABS warning light comes on and remains on.
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