Diagnostic Aids

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

The drive axle and drive motor generator 2 are joined mechanically through a planetary gear set, any condition that allows the rear axle to rotate too fast while the transmission is in gear may cause DTC P1B0E to set. Ask the operator if the vehicle was subjected to downhill coasting at an excessive speed.
A transmission mechanical failure that occurs during high drive motor generator torque may cause these DTCs to set.
Repeated drive motor generator operation at speeds in excess of the DTC limits may cause deterioration of the drive motor generator magnets.