OEM 2003 Chevrolet Malibu Engine Control Module

2003 Chevrolet Malibu Parts Questions & Experts Answers

• Q: How to replace the Engine Control Module safely and correctly on 2003 Chevrolet Malibu?

  A: The replacement of the powertrain control module (PCM) requires the ignition to be switched off before you disconnect or reconnect its connector to avoid harming the internal components. Start the pcm replacement by disconnecting the negative Battery Cable and after that remove the left hush panel. The pcm electrical connector should be disconnected while you loosen its screws but you should handle the components and pins with caution to prevent electrostatic discharge (ESD) damage. Push down the two holes on the pcm bracket to extract the pcm from its position. Examine the service number on the new pcm to verify it corresponds to a later version of the defective unit before putting it into the pcm mounting bracket. The pcm electrical connectors should be installed while keeping away from pins and components before tightening the pcm connector screws. Reinstall the hush panel to its left position while reattaching the negative Battery Cable. The following step requires programming the pcm followed by essential execution of the crankshaft position (CKP) system variation learn procedure. A new pcm requires total accumulation of 16 km (10 mi) before it will enable secondary air injection (AIR) pump operation.