To enter menu simultaneously press down vent , reduce temp and ECON. Use temperature buttons scroll through channels.
This video shows how you can access hidden menu in Climatronic in VW Passat 3BG (B5.5).
In the menu You have access to many useful data. Explanation of what each channel shows is on the link below.
channel explanation:
0. Adjustable
Temp climatronic instrument panel (-G56-) Sensor (meas block val 7.3)
Sensor or Value Learned
Sunlight photo sensor (located on dashboard) - values from 0 - 120% Sensor (meas block val 6.4)
Outside air temp - -E87- Calculated from -G89- and -G17- (?) Value Learned (meas block val 6.1)
Outside air temp - -G17- lower bumper sensor (?) Sensor (meas block val 6.3)
Outside air temp - -G89- air intake duct sensor (from engine?) Sensor (meas block val 6.2)
Outlet temp Floor sensor (-G192-) Sensor (meas block val 7.2)
Outlet temp Center sensor (-G191-) Sensor (meas block val 7.1)
Blower speed Adjustable
Measured blower speed Sensor
Temperature regulation 0 = Hot, 255 = Cold Adjustable Temperature reg flap motor -V68-
Dashboard ventilation valve Adjustable Central air flap motor -V70-
Recirculation valve Adjustable
Lower ventilation valve Adjustable
Sensor or Value Learned
Car speed Sensor
Sensor or Value Learned
Sensor or Value Learned
Sensor or Value Learned
Sensor or Value Learned
Sensor or Value Learned
Sensor or Value Learned
Coolant temp in HVAC heater element (?) Sensor
Temp wanted in heater or car (?) Adjustable
Position heated air Value Learned Temperature regulator flap motor -V68- (meas block val 2.4)
Actual value Sensor Temperature regulator flap motor -V68- (meas block val 2.1)
Position cooled air Value Learned Temperature regulator flap motor -V68- (meas block val 2.3)
Position footwell/defrost Value Learned Central air flap motor -V70- (meas block val 3.4)
Actual value Sensor Central air flap motor -V70- (meas block val 3.1)
Position instrument panel vents Value Learned Central air flap motor -V70- (meas block val 3.3)
Position resirc air passenger compartment Value Learned Air flow flap motor -V71- (meas block val 5.4)
Actual value Sensor Air flow flap motor -V71- (meas block val 5.1)
Stop position fresh air passenger compartment Value Learned Air flow flap motor -V71- (meas block val 5.3)
Position defroster Value Learned Footwell/defroster Flap Motor -V85- (meas block val 4.4)
Actual value Sensor Footwell/defroster Flap Motor -V85- (meas block val 4.1)
Position footwell Value Learned Footwell/defroster Flap Motor -V85- (meas block val 4.3)
Sensor
Sensor
Sensor
Sensor
