Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001QM7K
Model Year Start: 2021 Model: RAV4 Prod Date Range: [08/2020 -           ]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): DIAGNOSTIC TROUBLE CODE CHART; 2021 - 2024 MY RAV4 [08/2020 -        ]

DIAGNOSTIC TROUBLE CODE CHART

AIR CONDITIONING SYSTEM

DTC No.

Detection Item

DTC Detection Condition

Link

B1411

Room Temperature Sensor Circuit

  • Diagnosis condition: Ambient temperature is -30°C (-22°F) or more
  • Malfunction status: Open or short in room temperature sensor circuit
  • Detection time: None (Present malfunction), continuously for 4 seconds or more (Past malfunction)

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1411; Room Temperature Sensor Circuit

B1412

Ambient Temperature Sensor Circuit

  • Diagnosis condition: None
  • Malfunction status: Open or short in ambient temperature sensor circuit
  • Detection time: None (Present malfunction), continuously for 4 seconds or more (Past malfunction)

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1412; Ambient Temperature Sensor Circuit

B1413

Evaporator Temperature Sensor Circuit

  • Diagnosis condition: None
  • Malfunction status: Open or short in evaporator temperature sensor circuit
  • Detection time: None (Present malfunction), continuously for 4 seconds or more (Past malfunction)

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1413; Evaporator Temperature Circuit or Evaporator Fin Thermistor

B1423

Pressure Sensor Circuit

  • Diagnosis condition: Ignition switch ON
  • Malfunction Status: Refrigerant pressure signal malfunction
  • Detection time: Continuously for 4 seconds or more (Present malfunction)

2021 - 2024 MY RAV4 [08/2020 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1423; Open in Pressure Sensor Circuit / Abnormal Refrigerant Pressure

B1441

Air Mix Damper Control Servo Motor Circuit (Passenger Side)

  • Diagnosis condition: During No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix)*1 or No. 1 air conditioning radiator damper servo sub-assembly (air mix)*2 operation
  • Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning
  • Detection time: Continuously for 30 seconds or more

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1441; Air Mix Damper Control Servo Motor Circuit (Passenger Side)

B1442

Air Inlet Damper Control Servo Motor Circuit

  • Diagnosis condition: During No. 1 blower damper servo sub-assembly operation
  • Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning
  • Detection time: Continuously for 30 seconds or more

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1442; Air Inlet Damper Control Servo Motor Circuit

B1443

Air Outlet Damper Control Servo Motor Circuit

  • Diagnosis condition: During No. 1 air conditioning radiator damper servo sub-assembly (driver side mode) operation
  • Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning
  • Detection time: Continuously for 30 seconds or more

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1443; Air Outlet Damper Control Servo Motor Circuit

B1446

Air Mix Damper Control Servo Motor Circuit (Driver Side)

  • Diagnosis condition: During No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix) operation
  • Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning
  • Detection time: Continuously for 30 seconds or more

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1446; Air Mix Damper Control Servo Motor Circuit (Driver Side)

B1449

Air Outlet Damper Control Servo Motor Circuit (Rear)

  • Diagnosis condition: During No. 2 air conditioning radiator damper servo sub-assembly (rear mode) operation
  • Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning
  • Detection time: Continuously for 30 seconds or more

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1449; Air Outlet Damper Control Servo Motor Circuit (Rear)

B1451

Compressor Solenoid Circuit

Open or short in compressor solenoid circuit

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1451; Compressor Solenoid Circuit

B1497

Communication Malfunction (Bus Ic)

  • Diagnosis condition: None
  • Malfunction status: Error or open in communication line between air conditioning amplifier assembly and servo motor

2021 - 2024 MY RAV4 [08/2020 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B1497; Communication Malfunction (Bus Ic)

B14B2

Lost Communication with Front Panel LIN

Lost communication with air conditioning control assembly

  • Diagnosis condition: Ignition switch ON
  • Malfunction status: Lost communication with air conditioning control assembly
  • Detection time: Continuously for 10 seconds or more

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B14B2; Lost Communication with Front Panel LIN

B14B8

Refrigerant Shortage

  • Diagnosis condition: The amount of refrigerant is judged to be insufficient in normal operation
  • Malfunction status: When following condition is detected in refrigerant shortage check in normal operation; Amount of refrigerant is insufficient
  • Detection time: During air conditioning system operation for 10 minutes or more

2021 - 2024 MY RAV4 [08/2020 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B14B8; Refrigerant Shortage

B14BD

Refrigerant Overabundance Filling Malfunction

All of the following conditions are met 2 times or more in the same trip:

  • The vehicle speed is 20 km/h (12.4 mph) or more
  • The amount of compressor oil is within the insufficient compressor oil range for 60 seconds or more

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): B14BD; Refrigerant Overabundance Filling Malfunction

U0100

Lost Communication with ECM / PCM "A"

No communication with ECM

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): U0100-U0142,U0151,U0155; Lost Communication with ECM / PCM "A"

U0131

Lost Communication with Power Steering Control Module

No communication with rack and pinion power steering gear assembly (power steering ECU assembly)

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): U0100-U0142,U0151,U0155; Lost Communication with ECM / PCM "A"

U0142

Lost Communication with Body Control Module "B"

No communication with main body ECU (multiplex network body ECU)

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): U0100-U0142,U0151,U0155; Lost Communication with ECM / PCM "A"

U0151

Lost Communication with Restraints Control Module

No communication with airbag sensor assembly

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): U0100-U0142,U0151,U0155; Lost Communication with ECM / PCM "A"

U0155

Lost Communication with Instrument Panel Cluster (IPC) Control Module

No communication with combination meter assembly

2019 - 2024 MY RAV4 [11/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model): U0100-U0142,U0151,U0155; Lost Communication with ECM / PCM "A"