AIR CONDITIONING SYSTEM(for Manual Air Conditioning System) DIAGNOSTIC TROUBLE CODE CHART

Air Conditioning System (for Manual Air Conditioning System)
DTC No. Detection Item DTC Detection Condition Link
B1412 Ambient Temperature Sensor Circuit Open or short in ambient temperature sensor circuit

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B1413 Evaporator Temperature Sensor Circuit Open or short in evaporator temperature sensor circuit

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B1417 Evaporator Temperature Circuit Open or short in rear evaporator temperature sensor circuit

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B1422 Compressor Lock Sensor Circuit Open or short in A/C lock sensor circuit

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B1423 Pressure Sensor Circuit
  • Open or short in air conditioner tube and accessory assembly circuit

  • Refrigerant pressure on high pressure side is extremely low (176 kPa (1.8 kgf/cm2, 26 psi) or less) or extremely high (3025 kPa (30.8 kgf/cm2, 439 psi) or more)

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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 (air mix)

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B1442 Air Inlet Damper Control Servo Motor Circuit Air inlet damper position sensor value does not change even if air conditioning amplifier assembly operates blower damper servo sub-assembly (air inlet)

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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 (air outlet)

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B1451 Compressor Solenoid Circuit Open or short in compressor solenoid circuit

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B1457 Driver Side Air Outlet Damper Control Servo Motor Circuit Rear air mix damper position sensor value does not change even if air conditioning amplifier assembly operates rear air mix damper servo sub-assembly

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B1486 Driver Side Air Outlet Damper Control Servo Motor Circuit Rear air outlet damper position sensor value does not change even if air conditioning amplifier assembly operates rear mode damper servo sub-assembly

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B1497 Communication Malfunction (Bus Ic) Error or open in communication line

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B14B2 Lost Communication with Front Panel LIN Lost communication with air conditioning control assembly

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B14B3 Lost Communication with Rear Panel LIN Lost communication with No. 2 air conditioning control assembly

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B14B8 Refrigerant Shortage

When following condition is detected in refrigerant shortage check in normal operation:

Amount of refrigerant is insufficient

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U0100 Lost Communication with ECM No communication with ECM

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U0131 Lost Communication with Electric Power Steering ECU No communication with power steering ECU assembly

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U0142 Lost Communication with Main Body ECU No communication with main body ECU (multiplex network body ECU)

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U0155 Lost Communication with Combination Meter No communication with combination meter assembly

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