Monitor Description

The ECM (Included in HV Control ECU) monitors the battery supply voltage applied to the throttle actuator.

When the power supply voltage (+BM) drops below 4 V for 0.8 seconds or more, the ECM interprets this as an open in the power supply circuit (+BM). The ECM illuminates the MIL and sets the DTC. If the malfunction is not repaired successfully, the DTC is set 5 seconds after the engine is next started.