Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
AIR CONDITIONING SYSTEM (FOR MANUAL AIR CONDITIONING SYSTEM)
| DTC Code | Detection Item | Trouble Area | Memory*2 | See |
|---|---|---|---|---|
| B1412*1 | Ambient Temperature Sensor Circuit | 1. Ambient temperature sensor 2. Harness or connector between ambient temperature sensor and combination meter 3. Combination meter 4. A/C amplifier 5. CAN communication system |
Memorized (8.5 min. or more) |
Refer to DTC B1412: Ambient Temperature Sensor Circuit |
| B1413*3 | Evaporator Temperature Sensor Circuit | 1. Evaporator temperature sensor 2. Harness or connector between evaporator temperature sensor and A/C amplifier 3. A/C amplifier |
Memorized (8.5 min. or more) |
Refer to DTC B1413: Evaporator Temperature Sensor Circuit |
| B1423*3 | 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: Pressure Sensor Circuit |
| B1451*3 | Compressor Solenoid Circuit | 1. Compressor assembly with pulley (compressor solenoid) 2. Harness or connector between compressor assembly with pulley (compressor solenoid) and A/C amplifier or body ground 4. A/C amplifier |
- | Refer to DTC B1451: Compressor Solenoid Circuit |
| B1479*4 | Flow Sensor Circuit | 1. Compressor assembly with pulley (A/C flow sensor) 2. Harness or connector between compressor assembly with pulley (A/C flow sensor) and A/C amplifier 3. A/C amplifier |
Memorized (4 sec. or more) |
Refer to DTC B1479: Flow Sensor Circuit |
| B1499 | Multiplex Communication Circuit | CAN communication system | Memorized | Refer to DTC B1499: Multiplex Communication Circuit |
*1: 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.
*2: The A/C amplifier memorizes the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.
*3: For models without an air conditioning system, if this DTC is output, it does not indicate a problem.
*4: for TMC Made and except TMC Made 2ZR-FE