Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
| DTC Code | Detection Item | Trouble Area | Memory | Diagnostic Note |
|---|---|---|---|---|
| B1411/11 | Room Temperature Sensor Circuit | Room temperature sensor Harness and connector between room temperature sensor and A/C amplifier A/C amplifier |
◦ (8.5 min. or more) |
If the room temperature is approx.-18.6°C (1.48°F) or lower, DTC B1411/11 may be output even though the system is normal. |
| B1412/12 | Ambient Temperature Sensor Circuit | Ambient temperature sensor Harness and connector between ambient temperature sensor and ECM ECM Multiplex communication circuit A/C amplifier |
◦ (8.5 min. or more) |
If the ambient temperature is approx. -52.9°C (-63.22°F) or lower, a malfunction code may be output even though the system is normal. |
| B1413/13 | Evaporator Temperature Sensor Circuit | Air conditioning harness (evaporator temperature sensor) A/C amplifier |
◦ (8.5 min. or more) |
- |
| B1418/18 | Exhaust Gas Sensor Circuit | Exhaust gas sensor (emission gas sensor) Harness and connector between exhaust gas sensor (emission gas sensor) and A/C amplifier A/C amplifier |
- | - |
| B1421/21 | Solar Sensor Circuit (Passenger Side) | Solar sensor Harness and connector between solar sensor and A/C amplifier Harness and connector between solar sensor and multiplex network body ECU (cowl side junction block ECU RH) A/C amplifier |
◦ (8.5 min. or more) (only when circuit is shorted) |
If the check is performed in a dark place, DTC B1421/21 or B1424/24 (solar sensor circuit abnormal) may be output. |
| B1422/22 | Compressor Lock Sensor Circuit | A/C compressor A/C compressor drive belt A/C compressor and magnetic clutch lock sensor Harness and connector between ECM and A/C compressor ECM A/C amplifier |
- | - |
| B1423/23 | Pressure Sensor Circuit | Pressure sensor Harness and connector between pressure sensor and A/C amplifier Refrigerant pipe line A/C amplifier |
- | - |
| B1424/24 | Solar Sensor Circuit (Driver Side) | Solar sensor Harness and connector between solar sensor and A/C amplifier Harness and connector between solar sensor and multiplex network ECU (cowl side junction block ECU RH) A/C amplifier |
◦ (8.5 min. or more) (only when circuit is shorted) |
If the check is performed in a dark place, DTC B1421/21 or B1424/24 (solar sensor circuit abnormal) may be output. |
| B1441/41 | Air Mix Damper Control Servo Motor Circuit (Passenger Side) | A/C amplifier Air conditioning harness Air mix control servo motor |
◦ (30 sec.) |
- |
| B1442/42 | Air Inlet Damper Control Servo Motor Circuit | A/C amplifier Air conditioning harness Air inlet control servo motor |
◦ (30 sec.) |
- |
| B1443/43 | Air Outlet Damper Control Servo Motor Circuit | A/C amplifier Air conditioning harness Air outlet control servo motor |
◦ (30 sec.) |
- |
| B1445/45 | Front Passenger Seat Side Cool Air Bypass Damper Control Servo Motor Circuit | Cool air bypass damper control servo motor Air conditioning harness A/C amplifier |
◦ (30 sec.) |
- |
| B1446/46 | Air Mix Damper Control Servo Motor Circuit (Driver Side) | A/C amplifier Air conditioning harness Air mix damper control servo motor |
◦ (30 sec.) |
- |
| B1451/51 | Compressor Solenoid Circuit | A/C compressor Harness and connector between A/ C amplifier and solenoid of externally changeable compressor A/C amplifier |
- | - |
| B1461/61 | Emission Gas NOx Sensor Circuit | Exhaust gas sensor (emission gas NOx sensor) Harness and connector between exhaust gas sensor (emission gas NOx sensor) and A/C amplifier A/C amplifier |
- | - |
| B1462/62 | Room Humidity Sensor Circuit | Room humidity sensor (room temperature sensor) Harness and connector between room humidity sensor (room temperature sensor) and A/C amplifier A/C amplifier |
- | - |
| B1497/97 | BUSIC Communication Malfunction | Wire harness A/C amplifier |
◦ (10 sec. or more) |
- |