Code for left rear speed sensor with false traction control activations etc.
Road tested monitored wheel speed sensors, all speeds look same to me on scanner. I the checked tires inflation check okay, all same size . I jack the *** end up and put Sprinter on stands , follow sensor wiring and untaped the harness where you would think you would find the damn wheel sensor connectors and all I find are inseparable molded plastic slices. That negates any chance of a normal component test without creating wiring puncture wounds or accessing the controller connector. Funky Farfignuugen Wheel sensor that requires splicing costs about a hundred bucks a pop and I don't feel like finding pins and back probing a ABS module connector to see an oscilloscope trace
so I look and see the rear brakes look recent , so I figure maybe rust loosened up and got between the tone wheel and sensor in the parking brake area. I pull the Left rear brake rotor off and noted one parking brake hold down spring un accounted for i rotate the axle and can see the serrated tapered stamped steel Sombrero that is pressed onto the flange has a small dent in it and the culprit broken parking brake hold down spring . I fish the spring out with a magnet and price the dealer replacement Sombrero shaped tone wheel at about $135, and axle removal required. Well I see the tone wheel is intact and only a small dent . I pull the parking shoes to give me room, grab a skinny awl and carefully pry out the little dent in the sheet metal tone wheel through the slots with the awl , throw the rotor and brakes back on and I got someone that is really happy not to be a Camper.
Road tested monitored wheel speed sensors, all speeds look same to me on scanner. I the checked tires inflation check okay, all same size . I jack the *** end up and put Sprinter on stands , follow sensor wiring and untaped the harness where you would think you would find the damn wheel sensor connectors and all I find are inseparable molded plastic slices. That negates any chance of a normal component test without creating wiring puncture wounds or accessing the controller connector. Funky Farfignuugen Wheel sensor that requires splicing costs about a hundred bucks a pop and I don't feel like finding pins and back probing a ABS module connector to see an oscilloscope trace
so I look and see the rear brakes look recent , so I figure maybe rust loosened up and got between the tone wheel and sensor in the parking brake area. I pull the Left rear brake rotor off and noted one parking brake hold down spring un accounted for i rotate the axle and can see the serrated tapered stamped steel Sombrero that is pressed onto the flange has a small dent in it and the culprit broken parking brake hold down spring . I fish the spring out with a magnet and price the dealer replacement Sombrero shaped tone wheel at about $135, and axle removal required. Well I see the tone wheel is intact and only a small dent . I pull the parking shoes to give me room, grab a skinny awl and carefully pry out the little dent in the sheet metal tone wheel through the slots with the awl , throw the rotor and brakes back on and I got someone that is really happy not to be a Camper.
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