P1B05 and P1B06
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The MCM does not detect HVIC current flow.
- DTC P1B05 and P1B06 set within 1 second when the above condition is met.