OBD11 port won't erase engine codes or ABS codes

Asked by GuruGPQ58 Aug 28, 2020 at 04:01 AM about the 2008 Pontiac Grand Prix GXP

Question type: Maintenance & Repair

OBD port won't clear code

2 Answers

210

If its a permanent code no scantool will. U have to fix the fault and itll clear itself

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The ABS computer is separate from the engine computer (PCM). The ABS computer is cleared every time you shut off the ignition. You need a scan tool that will communicate with the ABS computer and get those codes with the engine running and the light on. When the ABS problem is fixed the light will stop staying on. You don't clear that computer, it clears itself. As for the PCM, some 08 models use CAN technology which is basically a faster "talking" computer. If you have an older scan tool or code reader it may not be able to communicate with the newer, faster technology. Try a newer scan tool that you know is CAN compliant. Hope that helps! Jim

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