VW TRANSPORTER 2003 – Auxiliary coolant heater, (B4W/D4W),(9AB) . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW TRANSPORTER 2003 - Fresh air blower switch - Air conditioning system switch - Fresh air and air recirculation flap switch - Fresh air blower series resistor with overheating fuse - Two-way valve for fresh air and air recirculation flap - Fresh air blower

E9	Fresh air blower switch
E30	Air conditioning system switch
E33	Temperature switch for evaporator
E159	Fresh air and air recirculation flap switch
J353	Rear fresh air and air recirculation flap relay, behind dash panel, centre
J623	Engine control unit
K114	Fresh air and air recirculation warning lamp
L16	Fresh air regulator illumination bulb
N24	Fresh air blower series resistor with overheating fuse
N63	Two-way valve for fresh air and air recirculation flap
T1v	Single connector, behind relay plate
T2q	2-pin connector, behind relay plate
T4a	4-pin connector
T5f	5-pin connector
T8a	8-pin connector
T8h	8-pin connector, behind dash panel, centre
V2	Fresh air blower
33	Earth point, on right behind dash panel
110	Earth connection 2, in dash panel wiring harness
L5	Connection 1, in evaporator housing unit wiring harness

E111	Pre-selection clock
J14	Warm air blower relay, behind dash panel, centre
J32	Air conditioning system relay
J485	Auxiliary heater operation relay, behind dash panel, centre
L75	Digital display illumination bulb
S6	Fuse 6 in fuse holder
S97	Fresh air blower fuse 1, under driver seat
S129	Control panel fuse, under driver seat
T8e	8-pin connector, behind relay plate
T8j	8-pin connector, behind relay plate
110	Earth connection 2, in dash panel wiring harness
A53	Positive connection (58b), in dash panel wiring harness
A61	Positive connection (X), in instrument panel wiring harness
L59	Positive connection (30), in heater unit wiring harness

A1	Second battery
C	Alternator
F38	Ambient temperature switch
J162	Heater control unit, on heater unit
J285	Control unit in dash panel insert
S126	Auxiliary heater fuse, under driver seat
T1g	Single connector, behind relay plate
T2d	2-pin connector, behind relay plate
T8i	8-pin connector, near heater unit
TV14	Self-diagnosis wiring junction, white
T14	14-pin connector
T32	32-pin connector, blue
V6	Combustion air blower
V54	Metering pump
253	Earth connection, in heater unit wiring harness
L59	Positive connection (30), in heater unit wiring harness

G64	Flame monitor
G189	Overheating sensor
G241	Coolant temperature sender for heater
J162	Heater control unit, on heater unit
Q9	Glow plug for heater
T2b	2-pin connector
T14	14-pin connector

F18	Radiator fan thermal switch
F95	Thermal switch for continued circulation of coolant
J493	Auxiliary coolant heater relay, under driver seat
N214	Coolant circuit valve
N273	Radiator shut-off two-way valve
S17	Fuse 17 in fuse holder
S19	Fuse 19 in fuse holder
T1p	Single connector, behind relay plate
T1q	Single connector, behind relay plate
T2e	2-pin connector, behind relay plate
T6a	6-pin connector, behind relay plate
T8e	8-pin connector, behind relay plate
T8j	8-pin connector, behind relay plate
T9	9-pin connector
V55	Circulation pump
18	Earth point, on cylinder block
C41	Positive connection (30a), in headlight wiring harness