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Last Modified: 9-16-2014 6.6 C Doc ID: RM000002I3U0HIX Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0657; Actuator Supply Voltage Circuit / Open; 2015 MY Tundra [08/2014 - ] DTC P0657 Actuator Supply Voltage Circuit / Open DESCRIPTION The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage usually is 0 V when the ignition switch is turned off. If the output voltage is higher than 7 V when the ignition switch is turned off, the ECM will illuminate the MIL and set a DTC when the ignition switch is turned to ON. DTC CODE DTC DETECTION CONDITION TROUBLE AREA P0657 Throttle actuator power supply error ECM MONITOR STRATEGY Related DTCs None Required Sensors/Components (Main) ECM Required Sensors/Components (Related) Throttle actuator Duration - MIL operation Immediate TYPICAL ENABLING CONDITIONS Monitor runs whenever following DTCs not present None Ignition switch ON to OFF Throttle actuator power supply voltage 7 V or more TYPICAL MALFUNCTION THRESHOLDS Throttle actuator power supply ON CONFIRMATION DRIVING PATTERN 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0657; Actuat... |