Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
- DTCs P1B03 and P1B04 are Type A DTCs.
- The hybrid powertrain control module (HPCM) commands the battery energy control module (BECM) to open the high voltage contactor relays.