OEM 2006 Buick Terraza Engine Control Module

2006 Buick Terraza Parts Questions & Experts Answers

• Q: How to replace the Engine Control Module on 2006 Buick Terraza?

  A: The first step to replace the powertrain control module (PCM) requires using a scan tool to obtain data about engine oil lifetime percentage. Commence by taking off the left sheet metal diagonal brace together with disconnecting the negative Battery Cable. You need to remove the air cleaner assembly cover before lifting the pcm out of its position in the air cleaner assembly. After disconnecting the pcm harness connectors you must remove the pcm from its installation position in the engine compartment. Installation requires connecting the pcm electrical connectors then placing the pcm within the air cleaner assembly before reinstalling and tightening air cleaner assembly cover screws to 4 n.m (35 lb in). Attach the left sheet metal diagonal brace while reattaching the negative Battery Cable connection. The computer needs eeprom programming after installation of a new pcm. A replacement control module should be programmed to maintain the current engine oil life information since programming it with 100 percent default will trigger an instant 5000-kilometer (3000-mile) oil change period from the previous change. Touching the connector pins or solder components on the circuit board should be avoided to avoid damage from electrostatic discharge while also ensuring correct installation of the control module connector gaskets to stop contaminants from intruding.