VW PASSAT 1999 – Air conditioning system, 1.9 ltr./66 kW turbo diesel engine, engine code AHU . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW PASSAT 1999 - Fresh air blower - air conditioner switch - ambient temperature switch - fresh/recirculating air change-over

E9	Fresh air blower switch
E35	Air conditioner switch
E184	Fresh air and recirculating air switch
F38	Ambient temperature switch (switching value ≤ 5°C)
K84	Air conditioning system warning lamp
K114	Fresh air/air recirculation warning lamp
L16	Fresh air controls light bulb
N24	Fresh air blower with overheating fuse series resistor
S225	Fuse in fuse holder
S236	Fuse in fuse holder
T4a	4-pin connector, on series resistance
T6g	6-pin connector, on fresh air blower switch
T8a	8-pin connector, on fresh air blower and air recirculation switch
V2	Fresh air blower
V154	Fresh/recirculating air flap control motor
135	Earth connection -2-, in dash panel wiring harness
503	Screw connection (75x), on relay plate
A19	Connection (58d), in dash panel wiring harness
A36	Connection (75a), in dash panel wiring harness
A80	Connection -1- (X), in dash panel wiring harness

G17	Ambient temperature sensor
J248	Diesel direct injection system control unit
J285	Control unit with display in dash panel insert
J314	Air conditioner cut-off control unit (384), on 13 position additional relay carrier
N25	Air conditioning system magnetic coupling
T2a	2-pin connector
T10d	10-pin connector, brown, on protective housing, left in engine compartment
T10k	10-pin connector, grey, left A-pillar coupling station
T32b	32-pin connector, green, on dash panel insert
T68	68-pin connector, on diesel direct injection system control unit
135	Earth connection -2-, in dash panel wiring harness
A36	Connection (75a), in dash panel wiring harness
A73	Connection (ambient temperature display), in dash panel wiring harness
A79	Connection (hot light switch), in dash panel wiring harness

E15	Heated rear window switch
F129	Air conditioner pressure switch
J26	Radiator fan relay (214), on 13 position additional relay carrier
J28	Air conditioner/heater diode
J217	Automatic gearbox control unit
J248	Diesel direct injection system control unit
T4	4-pin connector, front left in engine compartment
T6h	6-pin connector, black, on heated rear window switch
T10d	10-pin connector, brown, on protective housing, left in engine compartment
T10k	10-pin connector, grey, left A-pillar coupling station
T68	68-pin connector, diesel direct injection system control unit
T68a	68-pin connector, on automatic gearbox control unit
30	Earth point -1-, next to relay plate
81	Earth connection -1-, in dash panel wiring harness
127	Earth connection -1-, in A.C. compressor wiring harness
135	Earth connection -2-, in dash panel wiring harness
A64	Connection (speed boost), in dash panel wiring harness
A105	Connection -2- (rpm boost), in dash panel wiring harness
---	For vehicles with automatic gearbox only

F18	Radiator fan thermo-switch
J248	Diesel direct injection system control unit
J279	Radiator fan 1st speed relay (214), on 8 position additional relay carrier
J280	Radiator fan 2nd speed relay (213), on 8 position additional relay carrier
J397	Radiator fan run-on relay (214), on 8 position additional relay carrier
N39	Radiator fan series resistor, under left longitudinal member
S42	Radiator fan single fuse, on 8 position additional relay carrier
S51	Fuse for radiator fan relay, on 8 position additional relay carrier
T2b	2-pin connector, front in engine compartment
T10e	10-pin connector, yellow, on protective housing, left in engine compartment
T10k	10-pin connector, grey, left A-pillar coupling station
T68	68-pin connector, diesel direct injection system control unit
V7	Radiator fan
127	Earth connection -1-, in A.C. compressor wiring harness
500	Screw connection -1- (30), on relay plate
503	Screw connection (75x), on relay plate
A15	Positive connection (15), in instrument wiring harness
F25	Connection -1-, in diesel direct injection system wiring harness