DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (2GR-FKS) - Diagnostic Codes (5 Of 6) >> SFI System >> DTC P0657-14: Actuator Supply Voltage "A" Circuit Short to Ground or Open [12/2019 - 10/2022] >> Monitor Description

Monitor Description

The ECM monitors the battery supply voltage applied to the throttle actuator.

When the power supply voltage (+BM) is less than 4 V for 0.8 seconds or more, the ECM interprets this as an open or short to ground in the power supply circuit, then illuminates the MIL and stores this DTC.