HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): DIAGNOSTIC TROUBLE CODE CHART; 2019 - 2020 MY Camry [08/2018

DIAGNOSTIC TROUBLE CODE CHART

Air Conditioning System (for Automatic Air Conditioning System)

DTC No.

Detection Item

DTC Detection Condition

Link

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

B1422

Compressor Lock

Open or short in A/C lock 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) (for dual type) or No. 1 air conditioning radiator damper servo sub-assembly (air mix) (for single type)

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. 1 air conditioning radiator damper servo sub-assembly (mode)

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)

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

B1451

Compressor Solenoid Circuit

Open or short in compressor solenoid circuit

B1497

Communication Malfunction (Bus Ic)

Error or open in communication line

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

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 or more
The amount of compressor oil is within the insufficient compressor oil range for 60 seconds or more

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)