DTC P0AF2: General Description

Courtesy of HONDA, U.S.A., INC.

The power control unit (PCU) monitors the IGBT chip and board temperature sensor values to prevent malfunctions of the chip and other parts due to heat generation. The motor control module in the PCU compares the output temperature difference between the IGBT chip temperature sensor and the board temperature sensor at system activation timing, and if the difference exceeds a malfunction threshold for a specified time, the motor control module detects a malfunction and stores a DTC.