Conditions for Setting the DTC
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM re-syncs the engine position 6 or more times during an ignition cycle.
OR
- The ECM detects 14 or more interruptions in the engine speed signal during an ignition cycle.
- Either condition exists for more than 4 seconds.