This Preliminary Information communication provides information to the technician On rare occasions, an intermittent loss of IPC gauges may be encountered, and the SES and Battery Lights may illuminate. Additionally, a no crank concern may be encountered once the vehicle is turned off unless a battery charger is connected to the 12 volt battery. During diagnosis, DTCs P0AF8 and/or P0AFB will be stored. In most instances, both DTCs will be stored together.
This may be the result of a poor connection at the negative hybrid battery cable. If a poor connection exists, the 12 volt battery may discharge enough to cause this concern. If the vehicle is operated like this long enough, a no crank may occur because there may not be enough 12 volt system voltage present for the SGCM to energize the Starter Generator and start the engine. Once a battery charger is connected to the 12 volt battery, the SGCM will have enough voltage to energize the Starter Generator and start the vehicle.Â
