| E184 | Fresh air and recirculating air switch |
| K114 | Fresh air/air recirculation warning lamp |
| L16 | Fresh air controls light bulb |
| N23 | Fresh air blower.series resistor |
| S24 | Heater overheating fuse (8 Amp.) /air conditioner compressor |
| T2 | 2-pin connector |
| T4a | 2-pin connector |
| T8d | 8-pin connector |
| V2 | Fresh air blower |
| 33 | Earth point, behind dash panel, right |
| 81 | Earth connection -1-, in dash panel wiring harness |
| B199 | Connection -1- (fresh air blower), in interior wiring harness |
| B200 | Connection -2- (fresh air blower), in interior wiring harness |
| J485 | Auxiliary heater operation relay, under driver's seat, control number (106) |
| J486 | Fresh air blower relay, 2nd speed, under driver's seat, control number (94) |
| N214 | Tow-way valve for coolant circulation, left in plenum chamber |
| T2a | 2-pin connector |
| T8 | 8-pin connector, near additional heater unit |
| T8c | 8-pin connector |
| V55 | Recirculating pump, near additional heater unit |
| 291 | Earth connection -2-, in aux. heater harness |
| 292 | Earth connection -3-, in aux. heater harness |
| L51 | Positive connection -1-, in auxiliary heater wiring harness |
| L52 | Positive connection -2-, in auxiliary heater wiring harness |
| L62 | Positive connection (30a), in additional heater wiring harness |
| D | Ignition/starter switch |
| E35 | Air conditioner switch |
| F129 | Air conditioner pressure switch, right in engine compartment |
| J293 | Radiator fan control unit, left in engine compartment |
| J484 | Fresh air blower and air recirculation relay, under driver's seat, control number (114) |
| J487 | Fresh air blower isolation relay, under driver's seat, control number (53) |
| K84 | Air conditioning system warning lamp |
| T3c | 3-pin connector |
| T8c | 8-pin connector |
| T8g | 8-pin connector, left behind dash panel |
| T10 | 10-pin connector, on radiator fan control unit |
| 35 | Earth point, under front passerger seat |
| 290 | Earth connection -1-, in aux. heater harness |
| 291 | Earth connection -2-, in aux. heater harness |
| A80 | Connection -1- (X), in dash panel wiring harness |
| C35 | Connection (air conditioner), in headlight/air conditioner wiring harness |
| L52 | Positive connection -2-, in auxiliarty heater wiring harness |
| A1 | Second battery, under front passenger's seat |
| F4 | Reversing light switch |
| F38 | Ambient temperature switch |
| J7 | Battery cut-out relay, under front passenger's seat |
| J162 | Heater control unit B4W/D4W, in additional heater unit |
| S23 | Heater fuse |
| T2f | 2-pin connector |
| T8 | 8-pin connector, near additional heater unit |
| T14 | 14-pin connector |
| TV5 | Terminal 15a junction box, left behind dash panel |
| V6 | Combustion air blower |
| V54 | Metering pump, near fuel tank |
| 290 | Earth connection -1-, in aux. heater harness |
| L59 | Positive connection (30), in heater unit wiring harness |
| L62 | Positive connection (30a), in additional heater wiring harness |
| * | For diesel vehicles only |
| G64 | Flame monitor |
| G189 | Overheating sensor |
| G241 | Coolant temperature sender, heating* |
| J162 | Heater control unit B4W/D4W, in additional heater unit |
| Q9 | Glow plug for heater |
| T8 | 8-pin connector, near additional heater unit (diagnosis connector on chamber 5) |
| T14 | 14-pin connector |
| 57 | Earth point, left rear pillar |
| 292 | Earth connection -3-, in aux. heater harness |
| * | Identical to 'G62 - Coolant temperature sender' when performing self-diagnosis |
| E20 | Switches and instruments - lighting control |
| E111 | Pre-selection clock, in roof |
| L75 | Digital display illumination |
| T3 | 3-pin connector |
| T8b | 8-pin connector, left behind A-pillar/dash panel trim |
| TV8 | Terminal 58b junction box, left behind dash panel |
| Y2 | Digital clock |
| 71 | Earth point, front roof rail |
| 128 | Earth connection -1-, in interior light wiring harness |
| A4 | Positive (+) connection (58b), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| R6 | Positive connection -1-, in interior light wiring harness |
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