Section 5 (Hybrid Control System - Diagnostic Codes (5 Of 5) & Circuit Tests)
WARNING: This page is about a different car, the 2025 Toyota Highlander and 2024 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- Hybrid Control System
- DTC P3123-87: Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message [11/2023 - ]
- DTC P3147-79: Transmission (Shaft) Mechanical Linkage Failure [11/2023 - ]
- DTC P314A-31: Motor Electronics Coolant Pump "A" No Signal [11/2023 - ]
- DTC P321E-9F: Motor/Generator Shutdown Signal Stuck Off [11/2023 - ]
- DTC P33B9-9F: Motor/Generator Shutdown Signal (Hybrid/EV Side) Stuck Off [11/2023 - ]
- DTC P33BF-9F: Motor/Generator Shutdown Signal (MG Side) Stuck Off [11/2023 - ]
- DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0110-87: Lost Communication with Drive Motor Control Module "A" Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U1107-87: Lost Communication with Power Management Module Missing Message; DTC U111A-87: Lost Communication with ECM/PCM "A" (ch2) Missing Message; DTC U1170-87: Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message [11/2023 - ]
- DTC U029A-87: Lost Communication with Hybrid/EV Battery Sensor Module Missing Message [11/2023 - ]
- DTC U0424-81: HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received [11/2023 - ]
- Brake Override System [11/2023 - ]
- Transmission Control Switch Circuit [11/2023 - ]
- Pattern Select Switch EV Mode Circuit [11/2023 - ]
- Drive Mode Select Switch Circuit [11/2023 - ]
- TRAIL Switch Circuit [11/2023 - ]
- Indicator Circuit [11/2023 - ]
- Drive Start Control [11/2023 - ]
- ECU Power Source Circuit [11/2023 - ]
- Motor Resolver Circuit [11/2023 - ]
- Motor High-voltage Circuit [11/2023 - ]
- Generator Resolver Circuit [11/2023 - ]
- Generator High-voltage Circuit [11/2023 - ]
- Rear Motor Resolver Circuit [11/2023 - ]
- Rear Motor High-voltage Circuit [11/2023 - 11/2024]
- Rear Motor High-voltage Circuit [11/2024 - ]
- Shut Down Signal Circuit [11/2023 - ]
- Inverter Low-voltage Circuit [11/2023 - ]
- HV Battery High-voltage Line Circuit [11/2023 - ]
- Cooling System [11/2023 - ]