Diagnostic Trouble Code Chart
AIR CONDITIONING SYSTEM
| DTC Code | Detection Item | Trouble Area | Memory*3 | See |
|---|---|---|---|---|
| B1411/11*1 | Room Temperature Sensor Circuit | 1. Room temperature sensor 2. Harness or connector between room temperature sensor and A/C amplifier 3. A/C amplifier |
Memorized (4 sec. or more) |
Refer to DTC B1411/11: Room Temperature Sensor Circuit |
| B1412/12*2 | Ambient Temperature Sensor Circuit | 1. Ambient temperature sensor 2. Harness or connector between ambient temperature sensor and A/C amplifier 3. A/C amplifier |
Memorized (4 sec. or more) |
Refer to DTC B1412/12: Ambient Temperature Sensor Circuit |
| B1413/13 | Evaporator Temperature Sensor Circuit | 1. Evaporator temperature sensor 2. Air conditioning harness 3. A/C amplifier |
Memorized (4 sec. or more) |
Refer to DTC B1413/13: Evaporator Temperature Sensor Circuit |
| B1418/18*4 | Exhaust Gas Sensor Circuit | 1. Smog ventilation sensor (emission gas sensor) 2. Harness or connector between smog ventilation sensor (emission gas sensor) and A/C amplifier 3. A/C amplifier |
- | Refer to DTC B1418/18: Exhaust Gas Sensor Circuit |
| B1422/22 | Compressor Lock Sensor Circuit | 1. A/C compressor (A/C lock sensor) 2. Compressor drive belt 3. Harness or connector between A/C compressor and A/C amplifier 4. A/C amplifier 5. CAN communication system |
- | Refer to DTC B1422/22: Compressor Lock Sensor Circuit |
| B1423/23 | Pressure Sensor Circuit | 1. A/C pressure sensor 2. Harness or connector between A/C pressure sensor and A/C amplifier 3. A/C amplifier 4. Expansion valve (blocked, stuck) 5. Condenser (blocked, deterioration of cooling capacity due to dirt) 6. Cooler dryer (moisture in the refrigerant cycle cannot be absorbed) 7. Cooling fan system (condenser cannot be cooled down) 8. A/C system (leaks, blocked) |
- | Refer to DTC B1423/23: Pressure Sensor Circuit |
| B1441/41 | Air Mix Damper Control Servo Motor Circuit (Passenger Side) | 1. Air mix control servo motor (for front passenger side) 2. Air conditioning harness 3. A/C amplifier |
Memorized (30 sec. or more) |
Refer to DTC B1441/41: Air Mix Damper Control Servo Motor Circuit (Passenger Side) |
| B1442/42 | Air Inlet Damper Control Servo Motor Circuit | 1. Air inlet control servo motor 2. Air conditioning harness 3. A/C amplifier |
Memorized (30 sec. or more) |
Refer to DTC B1442/42: Air Inlet Damper Control Servo Motor Circuit |
| B1443/43 | Air Outlet Damper Control Servo Motor Circuit | 1. Air outlet control servo motor 2. Air conditioning harness 3. A/C amplifier |
Memorized (30 sec. or more) |
Refer to DTC B1443/43: Air Outlet Damper Control Servo Motor Circuit |
| B1446/46 | Air Mix Damper Control Servo Motor Circuit (Driver Side) | 1. Air mix control servo motor (for driver side) 2. Air conditioning harness 3. A/C amplifier |
Memorized (30 sec. or more) |
Refer to DTC B1446/46: Air Mix Damper Control Servo Motor Circuit (Driver Side) |
| B1451/51 | Compressor Solenoid Circuit | 1. A/C compressor (solenoid valve) 2. Harness or connector between A/C amplifier and A/C compressor (solenoid valve) 3. A/C amplifier |
- | Refer to DTC B1451/51: Compressor Solenoid Circuit |
| B1461/61*4 | Emission Gas NOx Sensor Circuit | 1. Smog ventilation sensor (emission gas NOx sensor) 2. Harness or connector between smog ventilation sensor (emission gas NOx sensor) and A/C amplifier 3. A/C amplifier |
- | Refer to DTC B1461/61: Emission Gas NOx Sensor Circuit |
| B1479/79 | Flow Sensor Circuit | 1. A/C compressor (A/C mass flow sensor) 2. Harness or connector between A/C compressor (A/C mass flow sensor) and A/C amplifier 3. A/C amplifier |
Memorized (4 sec. or more) |
Refer to DTC B1479/79: Flow Sensor Circuit |
| B1497/97 | BUS IC Communication Malfunction | 1. Air conditioning harness 2. Air mix control servo motor (for driver side) 3. Air mix control servo motor (for front passenger side) 4. Air outlet control servo motor 5. Air inlet control servo motor 6. A/C amplifier |
Memorized (10 sec. or more) |
Refer to DTC B1497/97: BUS IC Communication Malfunction |
| B14A2 | Driver Side Solar Sensor Short Circuit | 1. Solar sensor 2. Harness or connector between solar sensor and A/C amplifier 3. Harness or connector between solar sensor and main body ECU 4. Main body ECU 5. A/C amplifier |
Memorized (4 sec. or more) |
Refer to DTC B14A2: Driver Side Solar Sensor Short Circuit |
| B14A3 | Front Passenger Side Solar Sensor Short Circuit | 1. Solar sensor 2. Harness or connector between solar sensor and A/C amplifier 3. Harness or connector between solar sensor and main body ECU 4. Main body ECU 5. A/C amplifier |
Memorized (4 sec. or more) |
Refer to DTC B14A3: Front Passenger Side Solar Sensor Short Circuit |
| U0100 | Lost Communication with ECM | 1. CAN communication system 2. ECM |
- | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter |
| U0101 | Lost Communication with TCM | 1. CAN communication system 2. TCM |
- | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter |
| U0131 | Lost Communication with Electric Power Steering ECU | 1. CAN communication system 2. Electric power steering ECU |
- | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter |
| U0142 | Lost Communication with Main Body ECU | 1. CAN communication system 2. Main body ECU |
- | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter |
| U0155 | Lost Communication with Combination Meter | 1. CAN communication system 2. Combination meter |
- | Refer to DTC U0100: Lost Communication with ECM; DTC U0101: Lost Communication with TCM; DTC U0131: Lost Communication with Electric Power Steering ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter |
- *1: If the cabin temperature is approx. -18.6°C (-1.48°F) or lower, DTC B1411/11 may be output even though the system is normal.
- *2: If the ambient temperature is approx. -52.9°C (-63.22°F) or lower, DTC B1412/12 may be output even though the system is normal.
- *3: The A/C amplifier stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.
- *4: w/ Smog Ventilation Sensor