OEM 2009 Chevrolet Equinox Engine Control Module

2009 Chevrolet Equinox Parts Questions & Experts Answers

• Q: How to replace the Engine Control Module (ECM) on 2009 Chevrolet Equinox?

  A: The replacement of an Engine Control Module (ECM) must commence with turning off the ignition to protect the internal components during connector and power connection handling. Take care to prevent the control module metal case from touching battery voltage because this could cause damage and stay away from connector pins because of the risk of electrostatic discharge. Services should start by cleaning all connector surfaces on the control module then checking gasket installation to avoid contaminant entry. The replacement module needs programming information about engine oil and automatic transmission fluid life. Otherwise, it will set default values at 100% resulting in recommended oil change at 5000 km (3,000 mi) and transmission fluid change at 83000 km (50,000 mi) from the last service. You should begin the procedure by using a scan tool to obtain the current engine oil and transmission fluid life percentages for recording purposes. Understand the ecm retainer by backing it off the battery shield until it becomes free before you remove the retainer and set the ecm into position. The first step includes disconnecting the negative Battery Cable followed by placing the battery shield over the battery before removing the engine wiring harness electrical connectors from the ecm. During the installation process begin by connecting engine wiring harness electrical connectors to the ecm while you also remove the battery shield before reconnecting the negative Battery Cable. Place the ecm on top of the battery shield before sliding the ecm retainer in the rearward position to connect it. The process terminates with pcm programming.