General Information

HEV Control System
P1A77 Check Generator Belt - General Information

Component Location





General Description

The HCU starts engine through the Generator(HSG) and charges high voltage battery especially when SOC(State of Charge) is low. In case of mode chages from EV mode to HEV mode, the Generator(HSG) belt will be operated suddenly. With this reason, it needs to pay attention to this belt operation when checking belt.

DTC Description

The HCU sets DTC P1A77 when the HCU detects Generator belt is excessively slipped.

DTC Detecting Condition