A/C System Control And Regulation Components Outside Passenger Compartment: Notes
NOTE:
- Vehicles with automatically regulated A/C system, Climatronic Control Module -J255- evaluates the signals from various components and actuates the compressor via the A/C Compressor Regulator Valve -N280-.
- Vehicles with manual climate control system, the A/C Control Module -J301- evaluates the signals from various components and actuates the A/C compressor via the A/C compressor regulator valve.
- If there is a malfunction in the system, first check DTC memory of Climatronic control module / A/C control module using Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.
- If no fault is displayed, then read the measured value block for the Climatronic control module / the A/C control module and test the component using the "control diagnosis" function of the Vehicle Diagnosis, Testing and Information System VAS 5051 under "Guided Fault Finding".
- Servicing operations on refrigerant circuit are described in REFRIGERANT CIRCUIT, SERVICING .
- Perform the following work on completion of repair operations:
-- Check DTC memory of Climatronic control module / of A/C control module and erase any malfunctions displayed.
-- Check coding of Climatronic control module.
-- If necessary, check adaptation of Climatronic control module.
-- Perform basic setting of A/C system (Climatronic control module / A/C control module) using Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.