OEM 2005 Chevrolet Uplander Engine Control Module

2005 Chevrolet Uplander Parts Questions & Experts Answers

• Q: What does the service of the engine control module (ECM) typically involve on 2005 Chevrolet Uplander?

  A: The powertrain control module (PCM) service requires pcm replacement or electrically erasable programmable read-only memory (EEPROM) programming as the central procedures. A proper inspection of the pcm should be performed to verify the correct part. Per service procedure remove the defective pcm then place the new service unit and apply the broadcast code and production number to the corresponding garment which will provide identification through the vehicle lifetime. The new service pcm must be programmed according to the eeprom status through the diagnosis code p0602. All internal components in the pcm remain unfriendly for user maintenance and must not undergo manual opening. Use a scan tool to acquire and record the current engine oil lifetime percentage because failed programming will cause a default setting to trigger an immediate oil change after 5,000 km (3,000 mi) post-last oil change. The negative Battery Cable and left sheet metal diagonal brace need removal for accessing the pcm while taking off the air cleaner assembly cover before extracting the pcm from the air cleaner assembly. Remove the pcm from the engine compartment after disconnecting all harness connectors from its surface. The pcm installation process begins with connecting its electrical connectors before putting the pcm into the air cleaner assembly and screwing in the air cleaner assembly cover with a torque setting of 4 n.m (35 lb in). Attach the left sheet metal diagonal brace to its position while reestablishing the negative Battery Cable connectivity. Programming of eeprom needs to be performed whenever owners replace their pcm.