Diagnostic Aids
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
The following table illustrates the ECM connector locations:
| ECM Connector Location | |
|---|---|
| X2 | X1 |
| Front of Vehicle | |
- Inspect the KS for physical damage. A KS that is dropped or damaged may cause a DTC to set.
- Inspect the KS for proper installation. A KS that is loose or over torqued may cause a DTC to set. The KS should be free of thread sealant. The KS mounting surface should be free of burrs, casting flash, and foreign material.
- The KS must be clear of hoses, brackets, and engine electrical wiring.
- The normal voltage on the KS signal and low reference circuits is 2.43 volts when the KS is disconnected.
- A short to voltage on a signal or low reference circuit will cause a KS DTC to set for both banks of the engine.