DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 86 (Engine Control System (A25A-FXS) - Diagnostic Codes (P05B1-06DA)) >> SFI System >> DTC P0657-9E: Actuator Supply Voltage "A" Stuck On [12/2019 - 10/2022] >> Monitor Description

Monitor Description

WARNING: This page is about a different variant/trim than selected.

The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage is usually 0 V when the ignition switch is turned off. If the output voltage is 7 V or higher when the ignition switch is turned off, the ECM will illuminate the MIL and store this DTC when the ignition switch is turned to ON.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0657-9E Actuator Supply Voltage "A" Stuck On A throttle actuator power supply error (1 trip detection logic). ECM Comes on DTC stored SAE Code: P0657
Diesel-Data.com