Conditions for Clearing the DTC

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 P1A1F and P1A4E are Type C DTCs.

P1A1F

The calculated battery voltage measurement is greater than 260 volts.
Each individual hybrid battery voltage measurement is greater than 13 volts.

P1A4E

The calculated battery voltage measurement is less than 390 volts.
Each individual hybrid battery voltage measurement is less than 19.5 volts.