Car Problem Reports

Volvo C70 ABS Light Due to ABS Control Module Failure

 
Volvo C70 Problem
21 Reports
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Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004

Average Mileage: 102,620 mi (54,000 mi - 171,000 mi)

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The anti-lock brake system (ABS) Control Unit has a high failure rate. When this fault occurs, the ABS light will illuminate and codes may be stored indicating a problem with the ABS Pump Motor, or Wheel Speed Sensors, but the problem is the ABS Control Module.

Other symptoms may include an illuminated Check Engine and transmission shift light. and the speedometer may stop working as well.

Note: The brake system will operate normally however during a panic stop the Anti Lock Brakes will not work and the wheels may lock-up, causing a lack of vehicle control under these situations.

  • bobnniki, , 150,000 mi
     Rookie

    The ABS light, brake light, shift arrow light all would illuminate as well as the mileage and speedometer vanishing from the dashboard after the car was warmed up. I took your advise and got a 5/32" socket, took the sucker out, cut off the top with a utility knife and small pry bar, heated up the 21 solder points glued the top back on with some monkey glue, re-installed it and haven't had a problem since. Awesome advice and repair instructions. Keep up the good work!! Bob

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  • Alex Koch, , 100,007 mi
     Rookie

    Veery common issue with C70ies. Got TRACS OFF light on, as well as the speedometer giving up intermittently.
    A mechanic told me its the faulty wheel speed sensor, and he was going to take out the speedometer and send it to laboratory to have it fixed with estimated cost of $600 and all that bullshit!
    After a little research I discovered BBA remanufacturer (http://www.bba-reman.com) a company that specializes on different kinds of ECU (Electronic Control Unit) repairs. It took me like 4 days to get it back fixed and cost $83 :) On their website you'll find detailed instructions on how to remove the ABS module. You'll need a special E5 torx socket. I ordered mine at O'reiley's store. Long story, short, its relatively an easy, low cost fix if you know what to do. Good luck!

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  • Visitor, , 81,000 mi

    ABS light came on after we purchased it used with in a couple days.

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  • jalber, , 171,000 mi
     Rookie

    the abs and break lights come on, as well as the transmission arrow light, which blinks. the car gets sluggish when accelerating from a stop. the speedometer gives out, comes back in sometimes. no repairs yet. dont know how much it will cost

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  • Visitor, , 85,000 mi

    check engine and abs light comes on intermittently. flashing arrow and difficulty with acceleration happens intermittently at stop signs. intermittently the speed in dashboard goes out so cannot tell how fast the car is going, and brake light is solid intermittently too.

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  •  Rookie

    Same problem. Does not happen in cold weather. Only when air temp is above 65F.

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  • Visitor, , 85,093 mi

    I just bought this car, wish I would've done some research first. Thought all Volvo's were reliable. Check engine light came on, after I drove down the street. The next day the brake light, abs and check engine light keep coming on and off. Then the speedo stops working. Don't know what I'm going to do, paid a lot for it and it's leaking lots of oil. Lot I bought it from didn't offer any warranty. Looks like I got stuck with a lemon.

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  • Visitor,

    ABS Track Control light stays on unless extreme heat or cold conditions out! Also have noticed an occasional bounce of the spedo and message center lights completely up! Have noticed cruise drops out but no particular circumstances! I will get a rebuilt ABS Module soon but wonder if there could be a ground issue with the ECU like my old 86 240 had?

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  • Visitor, , 120,000 mi

    ABS and brake light come on intermittantly sometimes the traction light or flashing arrown as well. Check engine light will come on and stay on. When ABS and brake light do come on the speedometer goes dead 2 seconds later and will come back up only after the ABS and Brake light go out. Had the vehical speed sensor changed but this did not fix the problem.

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  • Visitor, , 90,000 mi

    typical issues with this vehicle. Mine failed at 90k miles and I sent it off for repair. Repair took less than 4 days and was about $100 excluding my labor

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