Other Name: Module, Emission Control System; Engine Control Module; ECM
Warranty: This genuine part is guaranteed by GM's
factory warranty.
Fits the following Vehicles:
2009 GMC Acadia | SLE, SLT | 6 Cyl 3.6 L GAS
GMC Acadia Engine Control Module
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GMC Acadia Engine Control Module Parts Questions & Experts Answers
Q: How to Safely Handle and Replace the Engine Control Module on GMC Acadia?
A: The initial step for replacing the Engine Control Module (ECM) should be to turn off the ignition because this precautionary measure prevents connector damage and power connection complications during the process. The metal case of the control module should avoid contact with battery voltage at all times while touching the connector pins or soldered components is strictly prohibited to safeguard against electrostatic discharge. The servicing process requires attention to both suitable cleaning of control module connector surfaces and verification that installed gaskets provide proper contaminant prevention. Failure to input remaining engine oil life and automatic transmission fluid life into the replacement module will default them to 100 percent resulting in mandatory oil changes at 5,000km and transmission fluid changes at 83,000km since programming was not performed. Start by removing the ecm by first disconnecting the negative Battery Cable followed by disconnection of the engine wiring harness middle and lower electrical connectors and by removing the engine wiring harness clip if a new ecm bracket is installed from the ecm bracket tab and lastly disconnecting the upper electrical connector from the ecm and gently lifting up the retaining tab to remove the ecm from its support brackets. You should remove the bolts that secure the ecm bracket when necessary. First position the ecm bracket and fit the bolts while tightening them to 6 n.m (53 lb in). Location the ecm beneath the retaining tab first before installing the upper electrical connector to the ecm. Before reinstalling the negative Battery Cable secure the middle and lower electrical connectors to the ecm along with installing the engine wiring harness clip to the ecm bracket tab. The installation of a new ecm requires programming for the new device.