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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System (Except HV, W/ Auto A/C) - Diagnostics - Introduction >> AIR CONDITIONING SYSTEM (for Gasoline Model with Automatic Air Conditioning System) >> Diagnostic Trouble Code Chart [12/2019 - 10/2022] >> Diagnostic Trouble Code Chart [12/2019 - 10/2022]

Diagnostic Trouble Code Chart [12/2019 - 10/2022]

AIR CONDITIONING SYSTEM

DTC No. Detection Item Link
B1411 Room Temperature Sensor Circuit Refer to DTC B1411: Room Temperature Sensor Circuit [12/2019 - 11/2023]
B1412 Ambient Temperature Sensor Circuit Refer to DTC B1412: Ambient Temperature Sensor Circuit [12/2019 - 11/2023]
B1413 Evaporator Temperature Circuit or Evaporator Fin Thermistor Refer to DTC B1413: Evaporator Temperature Circuit or Evaporator Fin Thermistor [12/2019 - 11/2023]
B1417 Evaporator Temperature Circuit Refer to DTC B1417: Evaporator Temperature Circuit [12/2019 - 11/2023]
B1419 Rear Room Temperature Sensor Circuit Refer to DTC B1419: Rear Room Temperature Sensor Circuit [12/2019 - 11/2023]
B1422 Compressor Lock Refer to DTC B1422: Compressor Lock [12/2019 - 10/2022]
B1423 Open in Pressure Sensor Circuit / Abnormal Refrigerant Pressure Refer to DTC B1423: Open in Pressure Sensor Circuit / Abnormal Refrigerant Pressure [12/2019 - 11/2023]
B1441 Air Mix Damper Control Servo Motor Circuit (Passenger Side) Refer to DTC B1441: Air Mix Damper Control Servo Motor Circuit (Passenger Side) [12/2019 - 10/2022]
B1442 Air Inlet Damper Control Servo Motor Circuit Refer to DTC B1442: Air Inlet Damper Control Servo Motor Circuit [12/2019 - 10/2022]
B1443 Air Outlet Damper Control Servo Motor Circuit Refer to DTC B1443: Air Outlet Damper Control Servo Motor Circuit [12/2019 - 10/2022]
B1446 Air Mix Damper Control Servo Motor Circuit (Driver Side) Refer to DTC B1446: Air Mix Damper Control Servo Motor Circuit (Driver Side) [12/2019 - 10/2022]
B1447 Air Mix Damper Control Servo Motor Circuit (Rear) Refer to DTC B1447: Air Mix Damper Control Servo Motor Circuit (Rear) [12/2019 - 11/2023]
B1448 FACE Servo Motor Circuit (Passenger Side) Refer to DTC B1448: FACE Servo Motor Circuit (Passenger Side) [12/2019 - 10/2022]
B1449 Air Outlet Damper Control Servo Motor Circuit (Rear) Refer to DTC B1449: Air Outlet Damper Control Servo Motor Circuit (Rear) [12/2019 - 11/2023]
B1451 Compressor Solenoid Circuit Refer to DTC B1451: Compressor Solenoid Circuit [12/2019 - 10/2022]
B1497 Communication Malfunction (Bus Ic) Refer to DTC B1497: Communication Malfunction (Bus Ic) [12/2019 - 10/2022]
B149A Communication Malfunction (Rear Bus Ic) Refer to DTC B149A: Communication Malfunction (Rear Bus Ic) [12/2019 - 11/2023]
B14B2 Lost Communication with Front Panel LIN Refer to DTC B14B2: Lost Communication with Front Panel LIN [12/2019 - 10/2022]
B14B3 Lost Communication with Rear Panel LIN Refer to DTC B14B3: Lost Communication with Rear Panel LIN [12/2019 - 11/2023]
B14B8 Refrigerant Shortage Refer to DTC B14B8: Refrigerant Shortage [12/2019 - 11/2023]
B14BD Refrigerant Overabundance Filling Malfunction Refer to DTC B14BD: Refrigerant Overabundance Filling Malfunction [12/2019 - 10/2022]
U0100 Lost Communication with ECM / PCM "A" Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U1114: Lost Communication with Driver Seat Module [12/2019 - 10/2022]
U0131 Lost Communication with Power Steering Control Module Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U1114: Lost Communication with Driver Seat Module [12/2019 - 10/2022]
U0142 Lost Communication with Body Control Module "B" Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U1114: Lost Communication with Driver Seat Module [12/2019 - 10/2022]
U0151 Lost Communication with Restraints Control Module Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U1114: Lost Communication with Driver Seat Module [12/2019 - 10/2022]
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U1114: Lost Communication with Driver Seat Module [12/2019 - 10/2022]
U1114 Lost Communication with Driver Seat Module Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U1114: Lost Communication with Driver Seat Module [12/2019 - 10/2022]
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