Wiring Diagram VW TRANSPORTER 1999 - Fresh air blower 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 - Fuse 6 in fuse holder - Fresh air blower

| E9 | Fresh air blower switch |
| E159 | Fresh air and air recirculation flap switch |
| 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 |
| S6 | Fuse 6 in fuse holder |
| T2q | 2-pin connector, behind relay plate |
| T4a | 4-pin connector |
| T5f | 5-pin connector |
| T8a | 8-pin connector |
| V2 | Fresh air blower |
| 33 | Earth point, on right behind dash panel |
| 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 |
Wiring Diagram VW TRANSPORTER 1999 - Pre-selection clock - Auxiliary heater operation relay - Fresh air blower fuse 1 - Control panel fuse
| E111 | Pre-selection clock |
| J485 | Auxiliary heater operation relay, behind dash panel, centre |
| L75 | Digital display illumination bulb |
| 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 |
| A61 | Positive connection (X), in instrument panel wiring harness |
| L59 | Positive connection (30), in heater unit wiring harness |
Wiring Diagram VW TRANSPORTER 1999 - Second battery - Ambient temperature switch - Heater control unit - Auxiliary heater fuse - Combustion air blower - Metering pump
| 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 |
Wiring Diagram VW TRANSPORTER 1999 - Flame monitor - Overheating sensor - Coolant temperature sender for heater - Heater control unit - Glow plug for heater
| 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 |
Wiring Diagram VW TRANSPORTER 1999 - Thermal switch for continued circulation of coolant - Auxiliary coolant heater relay - Coolant circuit valve - Radiator shut-off two-way valve - Fuse 17 in fuse holder - Fuse 19 in fuse holder - Circulation pump
| 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 |
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