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Q: After the shop changed the computer, the brake and ABS light stsy on. on 2002 Dodge Ram Van 3500

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The shop says this was incidental, not related to computer. Mechanic hooked up code checker under dash and showed me that there was no ABS code.
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I don't have scanner, shop used theirs and showed me that there was no code in computer for ABS. Believe that ABS is conrolled by a seperate Electronic Control Box?.
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The abs module needs to be scanned for fault codes. I'm willing to bet the abs module will have a fault code for unknown engine control module due to the engine control module replacement. Did they install a remanufactured controller? I think either the programming of the replacement module its questionable or some simple steps like entering the vin number into the new controller was not performed.
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I would be willing to bet that your ABS module has a fault code for not recognizing the new engine computer. I think a simple process like entering the vehicle identification number into the new module was over looked. That replacement module needs configured.
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