OEM 2005 Chevrolet Corvette Engine Control Module

2005 Chevrolet Corvette Parts Questions & Experts Answers

• Q: What precautions should be taken during Engine Control Module service on 2005 Chevrolet Corvette?

  A: Engine Control Module (ECM) service requires customers to choose between ecm component replacement and eeprom programming methods. It is vital to confirm the right ecm component before starting the replacement process. The key step to avoid ecm damage requires turning off the ignition before disconnecting or reconnecting power lines to the ecm and Battery Cable and ecm pigtail together with the ecm Fuse and jumper cables. The servicing process should clear all debris from ecm connector surfaces and precise installation of ecm module connector gaskets will stop any intrusions. Programming of the new ecm unit represents a mandatory step. Save the engine oil life reading before the removal since an unprogrammed replacement module sets the oil mileage to default at 100% which triggers a 5000 km (3,000 mi) oil change from the last change. A scan tool allows professionals to retrieve engine oil life percentage which should be recorded immediately. Use the rear retaining fastener from the ecm as an anchor for the outer bracket after you disconnect the ecm electrical harness connectors and remove the wheelhouse filler panel and loosen the fastener without complete removal. Start by removing the front fastener from the ecm before repositioning the outer bracket and extracting the ecm along with the bracket from the vehicle. During installation approach the ecm to the rear bracket then place the front bracket before putting on the front retaining fasteners which must be tightened to 2.0 n.m (17 lb in). The electrical connectors should connect to the ecm after tightening them to 8 n.m (70 lb in). Afterward install the tac module followed by the wheelhouse filler panel. A new installed ecm requires proper configuration programming.