A/C Compressor Regulator Valve -N280-, CHECKING ACTIVATION

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2017 Audi SQ5, 2017 Audi Q5, 2016 Audi SQ5, 2016 Audi Q5, and 2015 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Perform an electrical test for the activation of the A/C Compressor Regulator Valve -N280- as it is described in the A/C system Guided Fault Finding using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.

The activation of the A/C Compressor Regulator Valve -N280- occurs via the Vehicle Electrical System Control Module -J519-. Refer to the appropriate SYSTEM WIRING DIAGRAM. The request to activate the A/C Compressor Regulator Valve -N280- and the necessary current to regulate the compressor output to reach the desired temperature at the evaporator. Sent via the Data Bus from the Climatronic Control Module -J255- A/C display and control head to the Vehicle Electrical System Control Module -J519-. The Vehicle Electrical System Control Module -J519- then controls the A/C Compressor Regulator Valve -N280-.

If a fault in the A/C Compressor Regulator Valve -N280- is detected, then it will be stored in the DTC memory for the Vehicle Electrical System Control Module -J519- and the Climatronic Control Module -J255- A/C display and control head. It will be necessary to the check the Vehicle Electrical System Control Module -J519- DTC memory when reading the DTC memory for the Climatronic Control Module -J255- A/C display and control head using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.

The activation of the A/C Compressor Regulator Valve -N280- is displayed in the Vehicle Electrical System Control Module -J519- measured values block using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.