Diagnostic Aids

WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

If a repair is completed and the DTC was cleared using a scan tool on the same ignition cycle, the default action will not clear until an ignition cycle has occurred.
When the TAC module detects a condition within the Electronic Throttle Control (ETC) system the PCM receives a message across serial data and more than 1 ETC system related DTC may set. This condition is due to the many redundant tests run continuously on this system. Locating and repairing 1 individual condition may correct more than 1 DTC. Be aware of this when reviewing captured DTC info.