Section 150 (Heating / Air Conditioning System - Diagnostic Codes (2 Of 2), Circuit Tests & Symptom Tests)
WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
- AIR CONDITIONING SYSTEM (for Gasoline Model)
- DTC P0070-15: Ambient Temperature Sensor Circuit Short to Battery or Open [10/2022 - ]
- DTC P0530-11: Refrigerant Pressure Sensor Circuit Short to Ground [10/2022 - ]
- DTC P0530-15: Refrigerant Pressure Sensor Circuit Short to Battery or Open [10/2022 - ]
- DTC P0534-7A: Refrigerant Gas Fluid Leak or Seal Failure [10/2022 - ]
- DTC P0535-11: Evaporator Temperature Sensor Circuit Short to Ground [10/2022 - ]
- DTC P0535-15: Evaporator Temperature Sensor Circuit Short to Battery or Open [10/2022 - ]
- DTC P06A0-14: Compressor Solenoid Circuit Short to Ground or Open [10/2022 - ]
- DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0198-87: Lost Communication with Telematic Control Module "A" Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message [10/2022 - ]
- Blower Motor Circuit [10/2022 - ]
- Heater Water Pump Circuit [10/2022 - ]
- Ambient Temperature Display System [10/2022 - ]
- A/C Switch Indicator does not Turn On [10/2022 - ]
- No Cooling at All [10/2022 - ]
- Cooling is Poor [10/2022 - ]
- No Heating at All [10/2022 - ]
- Operation not Accepted Even If Air Conditioning Switch is Operated [10/2022 - ]
- Front Window Fogging [10/2022 - ]
- Blower Motor does not Operate [10/2022 - ]
- Weak Blower Output [10/2022 - ]
- Recirculated/Fresh Air Modes Switch without User Input [10/2022 - ]
- Recirculated/Fresh Air Modes do not Switch [10/2022 - ]
- Air Vent cannot be Switched [10/2022 - ]
- Air Vent Temperature does not Change and Right Vent is Different from Left and Vice Versa (Same Left/Right Temperature Setting) [10/2022 - ]