If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.

Priority | Detected items (DTC)
1 |

- U1000: CAN COMM CIRCUIT
- U1010: CONTROL UNIT (CAN)

2 |

- B257B: AMB TEMP SEN SHORT
- B257C: AMB TEMP SEN OPEN
- B2578: IN CAR SENSOR SHORT
- B2579: IN CAR SENSOR OPEN
- B2581: EVAP TEMP SEN SHORT
- B2582: EVAP TEMP SEN OPEN
- B2630: SUNLOAD SEN SHORT
- B2631: SUNLOAD SEN OPEN
- B2632: DR AIRMIX ACTR SHORT
- B2633: DR AIRMIX ACTR OPEN
- B2634: PASS AIRMIX ACTR SHORT
- B2635: PASS AIRMIX ACTR OPEN
- B2636: DR VENT DOOR FAIL
- B2637: DR B/L DOOR FAIL
- B2638: DR D/F1 DOOR FAIL
- B2639: DR DEF DOOR FAIL
- B263D: FRE DOOR FAIL
- B263E: 20P FRE DOOR FAIL
- B263F: REC DOOR FAIL
- B2654: D/F2 DOOR FAIL
- B2655: B/L2 DOOR FAIL