Q5 Quattro V6-3.2L (CALB) (2009)
High Pressure Sensor / Switch: Testing and Inspection
A/C Pressure/Temperature Sensor, Checking Signal
A/C Pressure/Temperature Sensor, Checking Signal
‹› Electrical testing of the Air Conditioning (A/C) compressor regulator valve (G395) signal is described in the A/C Guided Fault Finding. Refer to
=> Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function..
‹› The signal from the A/C pressure/temperature sensor ( G395) is evaluated by the vehicle electrical system control module (J519) and sent via the
data bus system to the A/C control head climatronic control module (J255).
‹› If a malfunction in the signal from the A/C pressure/temperature sensor (G395) is recognized, then a malfunction will be entered in the vehicle
electrical system control module ( J519) memory and in the A/C control head climatronic control module (J255). When reading the A/C control
head climatronic control module (J255) memory, you will be requested to check the vehicle electrical system control module (J519) memory.
Refer to => Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.
‹› The A/C pressure/temperature sensor (G395) measured values are displayed in the on-board supply ( J519) measured values block. Refer to =>
Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function. The displayed temperature is currently not
used by the A/C control head climatronic control module ( J255).