Diagnostic Aids

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Refer to SIR CAUTION in Cautions and Notices.

Disable the inflatable restraint steering wheel module when performing this diagnostic table. Refer to DISABLING & ACTIVATING AIR BAG SYSTEM in SIR.

Perform the following in order to avoid misdiagnosis:

Inspect for proper operation of the stop lamps. Refer to Exterior Lighting Systems Description and Operation in Lighting Systems.
Inspect for proper operation of the clutch system, if equipped with manual transmission. Refer to Clutch System Description And Operation in Clutch.
Observe the cruise set/coast and cruise resume/accel parameters in the scan tool ECM General Info Inputs data list while rotating the steering wheel to both stops and pressing and holding the steering wheel control switches. This will eliminate the possibility of a internally open or shorted inflatable restraint steering wheel module coil.

EMI on the speed sensor signal circuit may cause erratic cruise control operation.

For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.