Circuit/System Verification

WARNING: This page is about a different car, the 2008 Pontiac Torrent and 2008 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Verify that DTC B1517 is current.
- If the DTC is history, refer to Diagnostic Aids .
Ignition ON. Measure and record the voltage at the battery terminals. Verify that the battery voltage is 11-16 volts. Repeat with the engine running.
- If not within the specified range, refer to Charging System Test .
Observe the scan tool BCM battery positive voltage parameter. The scan tool data should not differ from the recorded battery voltage by more than 2 volts.
- If not within the specified range, refer to Circuit/System Testing .