DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 116 (Hybrid Control System (AWD) - Diagnostic Codes (4 Of 6)) >> HYBRID CONTROL SYSTEM (for AWD) >> DTC P0E31-1C: Boosting Converter Voltage Sensor "A" Voltage Out of Range [12/2019 - 11/2023] >> Procedure

DTC P0E31-1C: Boosting Converter Voltage Sensor "A" Voltage Out of Range [12/2019 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC OUTPUT (HYBRID CONTROL, MOTOR GENERATOR) 
    1. Check for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      Powertrain > Motor Generator > Trouble Codes 

      Result

      Result Proceed to
      P0E31-1C only is output, or DTCs except the ones in the table below are also output. A
      DTCs of Hybrid Control System in the tables below are output. B
      DTCs of Motor Generator Control System in the tables below are output. C
      Malfunction Content System Relevant DTC
      Microcomputer malfunction Hybrid Control System P0A1B-49 Drive Motor "A" Control Module Internal Electronic Failure
      P0AFC-00 Hybrid/EV Battery Sensor Module
      P0AFC-96 Hybrid/EV Battery Sensor Module Component Internal Failure
      P0606-47 Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure
      Motor Generator Control System P0A1B-1F Generator Control Module Circuit Intermittent
      P0A1A-47 Generator Control Module Watchdog / Safety MC Failure
      P0A1A-49 Generator Control Module Internal Electronic Failure
      P1C2A-1C Generator A/D Converter Circuit Circuit Voltage Out of Range
      P1C2A-49 Generator A/D Converter Circuit Internal Electronic Failure
      P3133-83 Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect
      P3133-86 Communication Error from Generator to Drive Motor "A" Signal Invalid
      P3133-87 Communication Error from Generator to Drive Motor "A" Missing Message
      Power source circuit malfunction Hybrid Control System P0AFC-16 Hybrid/EV Battery Sensor Module Circuit Voltage Below Threshold
      Motor Generator Control System P06D6-1C Generator Control Module Offset Power Circuit Voltage Out of Range
      Communication system malfunction Hybrid Control System P3123-87 Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message
      U029A-87 Lost Communication with Hybrid/EV Battery Sensor Module Missing Message
      Sensor and actuator circuit malfunction Hybrid Control System P0B3B-14 Hybrid/EV Battery Voltage Sensor "A" Circuit Short to Ground or Open
      P0B40-14 Hybrid/EV Battery Voltage Sensor "B" Circuit Short to Ground or Open
      P0B45-14 Hybrid/EV Battery Voltage Sensor "C" Circuit Short to Ground or Open
      P0B4A-14 Hybrid/EV Battery Voltage Sensor "D" Circuit Short to Ground or Open
      P0B4F-14 Hybrid/EV Battery Voltage Sensor "E" Circuit Short to Ground or Open
      P0B54-14 Hybrid/EV Battery Voltage Sensor "F" Circuit Short to Ground or Open
      P0B59-14 Hybrid/EV Battery Voltage Sensor "G" Circuit Short to Ground or Open
      P0B5E-14 Hybrid/EV Battery Voltage Sensor "H" Circuit Short to Ground or Open
      P0B63-14 Hybrid/EV Battery Voltage Sensor "I" Circuit Short to Ground or Open
      P0B68-14 Hybrid/EV Battery Voltage Sensor "J" Circuit Short to Ground or Open
      P0B6D-14 Hybrid/EV Battery Voltage Sensor "K" Circuit Short to Ground or Open
      P0B72-14 Hybrid/EV Battery Voltage Sensor "L" Circuit Short to Ground or Open
      P0B77-14 Hybrid/EV Battery Voltage Sensor "M" Circuit Short to Ground or Open
      P308A-13 Hybrid/EV Battery Voltage Sensor All Circuit Open
      P0AFC-62 Hybrid/EV Battery Sensor Module Signal Compare Failure
      P308A-12 Hybrid/EV Battery Voltage Sensor All Circuit Short to Auxiliary Battery
      System malfunction Motor Generator Control System P0D2D-16 Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Below Threshold
      P0D2D-17 Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Above Threshold
      P0E31-16 DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Below Threshold
      P0E31-17 DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Above Threshold

      HINT: 

      • P0E31-1C may be output as a result of the malfunction indicated by the DTCs above.
        1. The chart above is listed in inspection order of priority.
        2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
    2. Turn the ignition switch off.

    Result: 

    REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

    Result: 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 09/2020]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2020 - 10/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023] 

    Result: 

    GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023]