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#1
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ABS light on, any ideas where to start?
Pretty vague, I know, but at a first glance the fuse looks ok. Any common failures with these? On the trucks I have worked on in the past, it has been wheel speed sensors that fail most often, but I wanted to see if anybody had some input on the subject.
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2003 Dodge Ram 2500 Cummins - Georend fully built trans, Banks Big Hoss Bundle, Smarty Tuner, 5" turbo back exhaust. 500 HP and 1100 ft/lbs to the ground. 1979 Mercedes-Benz 300CD - Lost to a four car pile up on 275, Thank You Michigan Drivers. 1986 Mercedes-Benz 300D - Sold, Euro non-turbo car. |
#2
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I had problems with the 3rd brake light and socket blowing the fuse for the brake lights, ABS and Cruise control on my 350D. Never did figure out what I did to fix it though, it just quit eating fuses.
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#3
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Try cleaning the sensors at each of the wheels. Sometimes brake dust collecting on them can cause false lights.
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![]() Muleears '07 E320 Bluetec 133K my DD '04 Jaguar XJ8 VDP, 34K '10 Hyundai Accent 60K Grocery Getter '02 VW Golf soon to be on the road again '97 E300 Diesel Son's DD '61 VERY tolerant wife Hampton Roads, VA USA Gone but not forgotten: '67 250S 95K '86 300SDL '87 300D Turbo, 364K! R.I.P. '98 E300 Turbodiesel, 213K '02 S420, 164K '01 Prius 138K |
#4
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a couple of choices
There are many causes for ABS issues from my experience... some simple things to look at:
- voltage, sometimes a failing charging system will trigger ABS alerts - the wheel sensors can get dirty or the "teeth" in the back of the rotor can be filled with crud. Clean with brake cleaner or solvents. - wires are worn, trace them down from the wheel sensor to the ABS computer - the rest are more difficult debugging / testing problems that will require some info on the test processes for ABS computers, wiring, relays....perhaps the others can suggest alternate approaches. The solution on my old car was a front left wire was worn through and causing shorts. Replaced and the issues went away. Chuck |
#5
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On the newer models a failing battery is by far the most common fault.
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
#6
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That worked to solve my problem. It was a PITA to pull one of the sensors.
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87 300SDL - 215K Miles !! 99 F-350CC Dually PSD - 190K 86 300SDL - 189K All on B-100 |
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