Unit Check (Quick Check): Aircon

This diagnosis tests the climate bus connection (NAVI SI and NAVI SO) between the audio-navigation unit and the climate control unit. Make sure the engine is running for this test.

If Connection shows NG, the bus line may be failure. Check for hard error codes (see HOW TO CHECK ERROR HISTORY (NAVIGATION DTCS)  ).

Fig 1: Screen Display - Aircon Connection Information

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