| DTC Code | Detection Item | Trouble Area | Memory *3 | See page |
|---|---|---|---|---|
| B1412/12*1 | Ambient Temperature Sensor Circuit | 1. Room temperature sensor (for front) 2. Wire harness between room temperature sensor and air conditioning amplifier 3. Air conditioning amplifier |
Memorized (8.5 min. or more) |
|
| B1413/13 | Evaporator Temperature Sensor Circuit | 1. No. 1 cooler thermistor (Evaporator temperature sensor) 2. Air conditioning harness 3. Air conditioning amplifier |
Memorized (8.5 min. or more) |
|
| B1417/17*2 | Rear Evaporator Temperature Sensor Circuit | 1. Rear air conditioning harness (rear evaporator temperature sensor) 2. Wire harness between rear air conditioning harness (rear evaporator temperature sensor) and air conditioning amplifier 3. Air conditioning amplifier |
Memorized (8.5 min. or more) |
|
| B1422/22 | Compressor Lock Sensor Circuit | 1. A/C compressor (A/C lock sensor) 2. Compressor drive belt 3. Harness or connector between compressor and A/C amplifier 4. A/C amplifier 5. CAN communication |
- | |
| B1423/23 | Pressure Sensor Circuit | 1. Pressure sensor 2. Harness or connector between 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) |
- | |
| B1441/41 | Air Mix Damper Control Servo Motor Circuit (Passenger Side) | 1. Air mix control servo motor 2. Air conditioning harness 3. Air conditioning amplifier |
Memorized (30 sec.) |
|
| B1442/42 | Air Inlet Damper Control Servo Motor Circuit | 1. Air inlet control servo motor 2. Air conditioning harness 3. Air conditioning amplifier |
Memorized (30 sec.) |
|
| B1443/43 | Air Outlet Damper Control Servo Motor Circuit | 1. Air outlet control servo motor 2. Air conditioning harness 3. Air conditioning amplifier |
Memorized (30 sec.) |
|
| B1447/47*2 | Rear Air Mix Damper Control Servo Motor Circuit | 1. Rear air mix control servo motor 2. Rear air conditioning harness 3. Wire harness between rear air conditioning harness and air conditioning amplifier 4. Air conditioning amplifier |
Memorized (30 sec.) |
|
| B1449/49*2 | Rear Air Outlet Damper Control Servo Motor Circuit | 1. Rear air outlet control servo motor 2. Rear air conditioning harness 3. Wire harness between rear air conditioning harness and air conditioning amplifier 4. Air conditioning amplifier |
Memorized (30 sec.) |
|
| B1451/51 | Compressor Solenoid Circuit | 1. Compressor and magnetic clutch 2. Wire harness between air conditioning amplifier and compressor and Magnetic clutch 3. Air conditioning |
- | |
| B1497/97 | BUS IC Communication Malfunction | 1. Air conditioning harness 2. Air conditioning |
- | |
| B1499/99 | Multiplex Communication Circuit | 1. Air conditioning amplifier 2. ECM 3. Combination meter 4. CAN communication |
- |
*1: If the ambient temperature is approximately -52.9°C (- 63.22°F) or lower, DTC B1412/12 may be output even though the system is normal.
*2: for Rear Air Conditioning System
*3: The A/C amplifier memorizes the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.