| DTC Code | Detection Item | Trouble Area | Memory *4 | See page |
|---|---|---|---|---|
| B1411/11 *1 | Room 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) |
|
| B1412/12 *2 | Ambient Temperature Sensor Circuit | 1. Ambient temperature sensor 2. Wire harness between ambient temperature sensor and Air conditioning amplifier 3. Air conditioning amplifier |
Memorized (8.5 min. or more) |
|
| B1413/13 | Evaporator Temperature Sensor Circuit | 1. Front evaporator temperature sensor 2. Air conditioning harness 3. Air conditioning amplifier |
Memorized (8.5 min. or more) |
|
| B1417/17 *5 | Rear Evaporator Temperature Sensor Circuit | 1. Rear evaporator temperature sensor 2. Wire harness between rear evaporator temperature sensor and air conditioning amplifier 3. Air conditioning amplifier |
Memorized (8.5 min. or more) |
|
| B1419/19 *5 | Rear Room Temperature Sensor Circuit | 1. Rear room temperature sensor 2. Wire harness between rear room temperature sensor and air conditioning amplifier 3. Air conditioning amplifier |
Memorized (8.5 min. or more) |
|
| B1421/21 *3 | Solar Sensor Circuit (Passenger Side) | 1. Solar sensor 2. Wire harness between solar sensor and air conditioning amplifier 3. Wire harness between solar sensor and main body ECU 4. 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 air conditioning amplifier 4. Air conditioning amplifier 5. CAN communication system |
- | |
| 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) |
- | |
| B1424/24 *3 | Solar Sensor Circuit (Driver Side) | 1. Solar sensor 2. Wire harness between solar sensor and air conditioning amplifier 3. Wire harness between solar sensor and main body ECU 4. Air conditioning amplifier |
Memorized (8.5 min. or more) |
|
| 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.) |
|
| B1446/46 | Air Mix Damper Control Servo Motor Circuit (Driver Side) | 1. Air outlet control servo motor 2. Air conditioning harness 3. Air conditioning amplifier |
Memorized (30 sec.) |
|
| B1447/47 *5 | 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 *5 | 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 amplifier |
- | |
| B1479/79 | Flow Sensor Circuit | 1. Compressor and magnetic clutch (A/C flow sensor) 2. Harness or connector between compressor and magnetic clutch (A/C flow sensor) and air conditioning amplifier 3. Air conditioning amplifier |
Memorized (4 sec. or more) |
|
| B1497/97 | BUS IC Communication Malfunction | 1. Air conditioning harness 2. Air conditioning amplifier |
- | |
| B1499/99 | Multiplex Communication Circuit | 1. Air conditioning amplifier 2. ECM 3. Combination meter 4. CAN communication line |
- |
*1: If the room temperature is approximately -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 approximately -52.9°C (- 63.22°F) or lower, DTC B1412/12 may be output even though the system is normal.
*3: If the check is performed in a dark place, DTC B1421/21 or B1424/24 (solar sensor circuit abnormal) may be output even though the system is normal.
*4: The A/C amplifier memorizes the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.
*5: w/ Rear Air Conditioning System