Diagnostic Trouble Code Chart
| DTC Code | Detection Item | Trouble Area | Memory (*2) | See page |
|---|---|---|---|---|
| B1412*1 | Ambient Temperature Sensor Circuit | - Ambient temperature sensor - Harness or connector between ambient temperature sensor and air conditioning amplifier - Air Conditioning amplifier |
Memorized (8.5 min. or more) | Refer to DTC B1412: Ambient Temperature Sensor Circuit |
| B1413 | Evaporator Temperature Sensor Circuit | - Evaporator temperature sensor - Harness or connector between evaporator temperature sensor and air conditioning amplifier - Air conditioning amplifier |
Memorized (8.5 min. or more) | Refer to DTC B1413: Evaporator Temperature Sensor Circuit |
| B1423 | Pressure Sensor Circuit | - Pressure sensor - Harness or connector between pressure sensor and air conditioning amplifier - Air conditioning amplifier - A/C system (leaks, blocked) |
- | Refer to DTC B1423: Pressure Sensor Circuit |
| B1451 | Compressor Solenoid Circuit | - A/C compressor (compressor solenoid) - Harness or connector between A/C compressor (compressor solenoid) and air conditioning amplifier or Body ground - Air conditioning amplifier |
- | Refer to DTC B1451: Compressor Solenoid Circuit |
| B1499 | Communication Malfunction (Engine and Meter ECU) | CAN communication system | Memorized | Refer to DTC B1499: Communication Malfunction (Engine and Meter ECU) |
HINT:
- *1: If the ambient temperature is approximately -52.9°C (-63.22°F) or lower, DTC B1412 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.