2014-2021 GM Replacement OBD II Module Plug for Plug N Play Power Step (AMP19-03970-91)Restore reliable communication to your electric running boards with the AMP Research Replacement OBD II Module. This component is a critical link for PowerStep systems using plug and play technology, allowing the steps to receive the necessary door open and door closed signals directly from your vehicle's computer. If your steps are operating intermittently or failing to deploy, a damaged or faulty OBD II module is often the culprit. This genuine
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2014-2021 GM Replacement OBD II Module Plug for Plug N Play Power Step (AMP19-03970-91)