Running gear
Body
Power unit
Power transmission
Vehicle electrics
Heating, ventilation, air conditioning system
Auxiliary heater
Air conditioner with refrigerant R134a
Air conditioning
Self diagnosis, V.A.G Inspection Service
Air conditioner self-diagnosis
Self-diagnosis procedure
Interrogating fault memory
Final control diagnosis
Basic setting
Erasing fault memory, end of output
Encoding operating and display unit, Climatronic control unit J255
Reading measured value block
Adaption of operating and display unit, Climatronic control unit J255
Checking convenience data bus system
Electrical checks on air conditioner
Wiring and component check using test box V.A.G 1598A
Test steps "1” to "4”
Test steps "5” to "9”
Test step "5”
Checking pressure signal from high-pressure sender G65
Pin assignment at high-pressure sender G65
Pressure signal from high-pressure sender G65
Test step "6”
Checking activation signal for air conditioning system compressor regulating valve N280
Test step "7”
Test step "8”
Electrical checks on components actuated by operating and display unit, Climatronic control unit J255
Heated windscreen
Electrical checking of solar roof
Mode of operation of air quality sensor G238
Air conditioner