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1991 Volvo 740 Question: vehicle speed sensor

 

Question

dargas, Loves Park, IL, September 19, 2010, 15:08
 Rookie

were is the vehicle speed sensor for a 91 volvo 740 and whats the difference between the front and back sensors

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, September 19, 2010, 17:24
     Master

    What issue are trying to fix? ABS or speedometer?
    Speedo uses the rear differential sensor and the ABS uses the rear differential sensor and front wheel speed sensors.

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    Visitor, September 19, 2010, 17:38

    My abs light is on and my speedometer goes in and out

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    Bret Bodas, September 19, 2010, 17:43
     Master

    I would check the ABS codes, and check that rear differential sensor and wiring. If yo look at the back of the differential you'll see the sensor with 2 wires going to it.

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