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Missing speed signal but speedo works! 900

posted by  Ozzy Oz on  Sun Mar 5 17:37 CST 2017
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Hi guys,

I have been trying to fix my 960 Volvo. The car is in limp mode, OBD1 reads:

A1 232 missing speed signal, this code cannot be cleared!

A3 155 rear speed/abs sensor short circuit, I have checked the wire from the sensor to the trunk at the small connection box. The sensor itself gives resistance within the the normal range (1300 approx). I also check the voltage of the wires from the trunk to inside the car, and they give 0 Vs for the ground and 4.8 Vs for the green-white ABS wire, which I believe they are good. This code 155 is clear-able, but it comes back after driving.

The car has no ABS light, and the speedo works as well. My cruise control doesnt work and show no codes.

Any suggestions?






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