Component Inspection

Air Conditioner
B1257 AQS Sensor Open - Component Inspection

Component Inspection

Check AQS sensor
1. Ignition "OFF"
2. Connect AQS sensor and Connect A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of AQS sensor harness connector and chassis ground. (Component side)

Specification : Refer the specifications in Fig.1)




Fig.1)





Preheating Time : (35 ± 2 sec)
Fig.1) ** Voltage value of AQS sensor as a function of position of operating condition.
5. Is the measured voltage within specification?