Regulation of Automatic Air Conditioning, Function

GF83.40-P-2004P Regulation Of Automatic Air Conditioning, Function

MODEL 203.0 /2 /7 up to 31.5.01
- with CODE (580) Air conditioning (or Tempmatic for USA)
MODEL 203.0 /2 /7 as of 1.6.01
- with CODE (580) Automatic air conditioning
- up to Model Year 8
MODEL 203.0 /2 /7 as of 24.4.04
- except CODE (581) Comfort automatic air conditioning
- up to Model Year 8







A1 Instrument cluster
N10/1 Front SAM control unit with fuse and relay module
N22 AAC [KLA] control and operating unit
N69/1 Door control unit front left
N69/2 Door control unit front right
N69/3 Left rear door control unit (for models 203.0/2)
N69/4 Right rear door control unit (for models 203.0/2)
N70 Overhead control panel control unit
N73 EIS [EZS] control unit
CAN B Controller Area Network bus class B (interior compartment) (CAN B)
CAN C Controller Area Network bus, class C (engine compartment) (CAN C)

The electronic control and regulation of interior temperature, air volume and air distribution is performed by the AAC [KLA] control and operating unit (N22) depending on the preselected settings and the following information:
- Interior temperature, detected by the in-car temperature sensor in the AAC [KLA] control and operating unit (N22) and additionally by the in-car temperature sensor in the overhead control panel control unit (N70) (up to 31.5.02 and as from 1.6.05)
- Position of the tilting/sliding roof (SHD) (for model 203.0/2 with code (414) Power glass tilting/sliding roof) or panoramic tilting/ sliding roof (for model 203.7 with code (413) Panoramic sliding roof), read in by overhead control panel control unit (N70)
- Position of windows, read in by door control units (N69/1, N69/2, N69/3, N69/4)
- Air humidity, captured by the air humidity sensor (up to 28.6.06), read in by the AAC [KLA] control and operating unit (N22)
- Ambient temperature, detected by outside temperature display temperature sensor, read in by front SAM control unit with fuse and relay module (N10/1)
- Battery voltage, coolant temperature and engine speed, read in by EIS [EZS] control unit (N73)
- Ground speed, read in via instrument cluster (A1)
- Pressure and temperature of refrigerant, detected by refrigerant pressure and temperature sensor, read in by front SAM control unit with fuse and relay module (N10/1)
- Evaporator temperature, detected by evaporator temperature sensor, read in by AAC [KLA] control and operating unit (N22)