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Old 11-12-2017, 01:15 PM   #1
V70XC
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Default Possible ABS module failure?

Occasionally while driving, and sometimes on startup, my odometer and trip read ----.-/------, my speedometer drops to zero and my brake and ABS lights turn on.
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Old 11-16-2017, 11:36 AM   #2
Janspeed
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please mention the model and year of production. It increases your chance of getting a useful answer.
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Old 11-16-2017, 11:40 AM   #3
JohnMc
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If it's the V70XC, I'd have no idea. If it's a late model RWD 240/740/940, then it's likely the speed sensor in the rear axle, that runs both the speedo/odo and one of the 3 circuits in the ABS system. Bad sensors on the diff cover, or bad wiring to it, would give you those symptoms.
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Old 11-18-2017, 10:30 PM   #4
ovlov760
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TRACS module issues are very common in P80 Volvo's. Easiest option is to buy a rebuilt unit. Hardest option is to cut open your existing box and reflow the solder. You'll have to seal the box up watertight if you go that route.
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