AIR CONDITIONING – Audi 90 Quattro 1991 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Audi 90 Quattro 1991

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Audi 90 Quattro 1991:

• (not used)
• A/c control head
• A/c programmer
• Alternator
• Battery
• Coolant fan after run thermo switch
• Coolant fan low speed relay
• Cooling fan after run control unit
• Cooling fan thermo switch
• Fuse 15a
• Fuse 25a
• Fuse 30a
• Fuse 5a
• Fuse/ relay panel
• Hot w/ lights on
• Hot w/ load reduction relay energized
• Ignition (15)
• Instrument cluster
• Interior temperature sensor 1 fan
• Red
• Tcm
• Temp regulator flap motor

Automatic A/C Wiring Diagram (2 of 2) for Audi 90 Quattro 1991

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Audi 90 Quattro 1991:

• A/c compressor clutch
• A/c compressor clutch unit
• A/c high pressure switch
• A/c low pressure switch
• A/c refrigerant high pressure
• Ambient temperature sensor
• Coolant fan
• Coolant fan after run resistor
• Coolant fan control thermo switch
• Coolant fan high speed relay
• Coolant low level
• Coolant temperature sensor
• Fresh air fan control unit
• Fresh air fan motor
• Fuel injection control unit
• Inside temperature sensor 1
• Inside temperature sensor 2
• Instrument cluster
• Outside temperature sensor
• Red
• Switch

Manual A/C Wiring Diagram for Audi 90 Quattro 1991

List of elements for Manual A/C Wiring Diagram for Audi 90 Quattro 1991:

• (in fuse/ relay panel)
• (in instrument g206 panel wiring harness)
• (not
• A/c compressor clutch
• A/c control unit
• A/c flap
• A/c refrig-
• A/c refrigerant
• A/c refrigerant high pressure switch
• Battery (30)
• Blower motor
• Blower resistors
• Blower switch
• Cluster
• Coolant fan
• Coolant fan after run
• Coolant fan after run control unit
• Coolant fan low speed relay
• Coolant fan resistor
• Coolant fan thermo switch
• Ctrl relay
• Diode
• Electronic thermo switch
• Erant low
• Fuel injection control unit
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse/ relay panel
• G206 (in instrument panel wiring harness)
• Heater fan relay
• High speed coolant fan
• Hot with load reduction relay energized (x)
• Ignition (15)
• Illumi- nation
• Instru-
• Low coolant switch
• Ment
• Nca
• Off
• Outside temp switch
• Pressure
• Pressure safety switch
• Solenoid
• Switch
• Tcm
• Thermo switch
• Used)