HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART; 2019 - 2020 MY Camry HV [09/2018

DIAGNOSTIC TROUBLE CODE CHART

Air Conditioning System

DTC No.

Detection Item

DTC Detection Condition

Link

B1279

Lost Communication with Humidity/Rain Sensor LIN

Lost communication with air conditioning thermistor assembly

B1411

Room Temperature Sensor Circuit

Open or short in room temperature sensor circuit

B1412

Ambient Temperature Sensor Circuit

Open or short in ambient temperature sensor circuit

B1413

Evaporator Temperature Circuit or Evaporator Fin Thermistor

Open or short in evaporator temperature sensor circuit

B1423

Open in Pressure Sensor Circuit / Abnormal Refrigerant Pressure

Open or short in air conditioner pressure sensor circuit
for HFC-134a(R134a):
Refrigerant pressure on high pressure side is extremely low (176 kPaG (1.8 kgf/cm², 26 psi) or less) or extremely high (3025 kPaG (30.8 kgf/cm², 439 psi) or more)
for HFO-1234yf(R1234yf):
Refrigerant pressure on high pressure side is extremely low (196 kPaG (2.0 kgf/cm2, 28 psi) or less) or extremely high (2812 kPaG (28.7 kgf/cm2, 408 psi) or more)

B1441

Air Mix Damper Control Servo Motor Circuit (Passenger Side)

Air mix damper position sensor value does not change even if air conditioning amplifier assembly operates No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix)

B1442

Air Inlet Damper Control Servo Motor Circuit

Air inlet damper position sensor value does not change even if air conditioning amplifier assembly operates No. 1 blower damper servo sub-assembly

B1443

Air Outlet Damper Control Servo Motor Circuit

Air outlet damper position sensor value does not change even if air conditioning amplifier assembly operates No. 3 air conditioning radiator damper servo sub-assembly

B1446

Air Mix Damper Control Servo Motor Circuit (Driver Side)

Air mix damper position sensor value does not change even if air conditioning amplifier assembly operates No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix)

B1448

Passenger Side FACE Servo Motor Circuit

Air outlet damper position sensor value does not change even if air conditioning amplifier assembly operates No. 1 air conditioning radiator damper servo sub-assembly (front passenger side mode)

B1449

Air Outlet Damper Control Servo Motor Circuit (Rear)

Air outlet damper position sensor value does not change even if air conditioning amplifier assembly operates No. 2 air conditioning radiator damper servo sub-assembly

B1471

A/C Inverter High Voltage Power Resource System Malfunction

Open or short in A/C inverter high voltage power resource system
Boost inverter malfunctioning

B1472

A/C Inverter High Voltage Output System Malfunction

Open or short in A/C inverter high voltage output circuit

B1473

A/C Inverter Start-up Signal System Malfunction

Open or short in A/C inverter start-up signal circuit

B1474

A/C Inverter Malfunction

A/C inverter malfunction

B1475

A/C Inverter Cooling / Heating System Malfunction

A/C inverter temperature outside specified range (temperature too high) or open or short to ground in temperature sensor circuit

B1476

A/C Inverter Load System Malfunction

Motor rotation load while compressor is operating is too large or too small

B1477

A/C Inverter Low Voltage Power Resource System Malfunction

Open or short to ground in inverter control power voltage circuit

B1497

Communication Malfunction (Bus Ic)

Error or open in communication line

B1498

Communication Malfunction (A/C Inverter Local)

Error or open in communication line between the hybrid vehicle control ECU assembly and compressor with motor assembly
High-voltage power source shut off

B14A8

Glass Temperature Sensor Circuit

Open or short in glass temperature sensor circuit

B14A9

Glass Surroundings Temperature Sensor Circuit

Open or short in glass surroundings temperature sensor circuit

B14AA

Glass Humidity Sensor Circuit

Open or short in glass humidity sensor circuit

B14B2

Lost Communication with Front Panel LIN

Lost communication with air conditioning control assembly

B14B8

Refrigerant Shortage

The following condition is detected in the normal operation refrigerant shortage check:

Amount of refrigerant is insufficient

P1C7C49

Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure

High voltage system insulation malfunction

U0100

Lost Communication With ECM/PCM "A"

No communication with ECM

U0131

Lost Communication With Power Steering Control Module

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

U0142

Lost Communication With Body Control Module "B"

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

U0151

Lost Communication With Restraints Control Module

No communication with airbag sensor assembly

U0155

Lost Communication With Instrument Panel Cluster (IPC) Control Module

No communication with combination meter assembly

U0163

Lost Communication With Navigation Control Module

No communication with air conditioning control panel (radio and display receiver assembly)

U0293

Lost Communication with HV ECU

No communication with hybrid vehicle control ECU assembly