VW TRANSPORTER 1998 – Additional water heater B4W, 2.5 ltr./81 kW Simos, engine code AET . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW TRANSPORTER 1998 - Front fresh air blower - fresh air blower switch - fresh air blower series resistor - auxiliary heater operation relay

A1	Second battery
E9	Fresh air blower switch
E20	Switches and instruments - lighting control
E159	Fresh air and air recirculation switch
J485	Auxiliary heater operation relay, control number (106)
L10	Dash panel insert light bulb
L16	Fresh air control light bulb
L39	Heated rear window switch bulb
N24	Fresh air blower with overheating fuse series resistor
S97	Fresh air blower fuse 1
S98	Fresh air blower fuse 2
T2	2-pin connector
T2e	2-pin connector, behind relay plate
T4a	4-pin connector
T6c	6-pin connector
T6g	6-pin connector
TV2	Terminal 30 junction box
V2	Fresh air blower
33	Earth point, behind dash panel, right
81	Earth connection -1-, in dash panel wiring harness
162	Earth connection, in blower motor wiring harness
A28	Positive connection (58b), in fresh air blower wiring harness
A40	Positive connection -1- (30), in dash panel wiring harness

A1	Second battery
E1	Lighting switch
E111	Pre-selection clock
L75	Digital display illumination
S129	Control panel fuse
T1a	Single connector, left behind dash panel
T2e	2-pin connector, behind relay plate
T3	3-pin connector, behind the relay plate
T6d	6-pin connector, behind relay plate
T12	12-pin connector
X	Number plate light
81	Earth connection -1-, in dash panel wiring harness
A20	Positive (+) connection (15), in dash panel wiring harness

G64	Flame monitor
G189	Overheating sensor
G241	Coolant temperature sender, heating*
J162	Heater control unit B4W, in additional heater
Q9	Glow plug for heater
T8	8-pin connector, near heater additional (diagnosis connector on chamber 5)
T14	14-pin connector
292	Earth connection -3-, in aux. heater wiring harness
*	Identical to 'G62 - Coolant temperature sender' when performing self-diagnosis

A1	Second battery
J162	Heater control unit B4W, in additional heater
S126	Additional heater fuse, No. 4 multi-fuse adapter
T2b	2-pin connector
T2f	2-pin connector
T3	3-pin connector, behind relay plate
T8	8-pin connector, near heater additional
T14	14-pin connector
V6	Combustion air blower
V54	Metering pump
292	Earth connection -3-, in aux. heater wiring harness

A1	Second battery
F95	Thermo-switch for coolant circulation run-on
J493	Additional water heating relay, under driver's seat, control number (403)
N214	Two-way valve for coolant circuit
N273	Radiator shut-off two-way valve
T1c	Single connector, behind relay plate
T2c	2-pin connector, left behind dash panel
T3	3-pin connector, behind relay plate
T6	6-pin connector
T9	9-pin connector
V51	Continued coolant circulation pump
18	Earth point, on cylinder block
C41	Positive connection (30a), in headlight wiring harness