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Posted on Jan 02, 2017
SOURCE: vitz abs light
The most likely cause is that the wheel speed sensor wire got stretched during disassembly, and needs to be replaced not. If the wires arent disconnected from the hub, or strut during disassembly, they get pulled and yanked and the wires inside stretch to far, but you cant see it because the outside looks ok. Happens all the time.
Posted on Jan 25, 2009
The bearings on the wheels has to be installed one way only, the rotor ring is built into the bearing and if installed the wrong way round the sensor cant pick up the wheel speed causing the ligt to be switched on in the cluster. The diagnostic equipment should pick this up as a fault once the car has been driven, it will see the sensor when you do the diagnostic if the car is standing still but once the car is moving and no signal is send from that wheel it would register a fault into the memory of the PCM that you would be able to retrieve later.
There is a way for you to test the sensor yourself by using a multimeter set on volts, you jack the vehicle up at that wheel, install a vehicle stand to support the vehicle to be safe, disconect the wheel speed sensor and probe the two wires into the sensor, spin the wheel by hand and a small amount of current will be produced meaning the the sensor is working and the wheel bearing is installed the correct way, you can also do a continuaty test on the sensor by switching the multimeter onto ohms, but be very carefull, if this sensor has three wires you cant do the continuaty test because of the integrated circuit in the sensor, the three wire sensors opperate on a voltage from 5Volt and it would be destroyed by the multimeter opperating on 9Volt.
If the continuaty test passes and the bearing is installed the correct way, the most comon fault would be a break in the wiring leading to the PCM
Hope this will be helpfull.
Posted on May 04, 2009
Posted on Nov 17, 2009
ECU - take it to a dealer for diagnostic and reset/repair
Posted on Jan 12, 2010
Testimonial: "Many thanks. Have had put on a machine at BMW and a local garage and it is not coming up with any error codes. Trying again on friday with dealer."
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speedometer related issues, the help links are provided below. Click the link
below to go through its details: ----
How to trouble shoot speedometer?
why speedometer not working? http://technoanswers.blogspot.com/2012/01/1996-fiat-bravo-speedometer-not-working.html
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