Land Rover Defender 2002 Electrical Library Rover Manual
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DESCRIPTION AND OPERATION 4.48DEFENDER 02MY DIRECTION INDICATOR/HAZARD WARNING LAMPS Description General The indicators are controlled via the LH steering column switch and operate when the ignition switch is in position II. The hazard warning lamp switch is mounted on the centre fascia module. When the switch is pressed, the LH and RH indicator lamps, the switch, and the instrument pack mounted warning lamp all flash simultaneously. Hazard warning lamp operation is not dependent on ignition switch position. Operation Power Distribution Feed from the positive battery terminal (C0192) is supplied to fusible link 1 and fusible link 5 of the under seat fuse box (C0632) on an N wire. Fusible link 1 is connected in series with fusible link 2, which is also located in the under seat fuse box. Fusible link 2 (C0570) is connected to fuse 31 of the passenger compartment fuse box (C0595) by an NK wire. Fuse 31 (C0595) provides a constant battery feed to the hazard warning switch (C0096) on a PN wire. Fusible link 5 (C0570) is connected to the ignition switch (C1043 on LHD, C0028 on RHD) by an NW wire. When the ignition switch is turned to the ignition position, current flows across the switch (C1732 on LHD, C0094 on RHD) to fuse 21 of the passenger compartment fuse box (C0581) on an NW wire. Fuse 21 (C0581) provides an ignition feed to the hazard warning switch (C0096) on a WG wire. The hazard warning switch (C0096) is now able to provide a feed to the hazard warning relay coil and switch (C0547) on a LG wire. The relay coil is earthed on a B wire. The energised hazard warning relay (C0547) provides a feed to the column switch (C1739 on LHD, C1042 on RHD) on a LGN wire.
DESCRIPTION AND OPERATION DEFENDER 02MY 4.49 Direction Indicator Lamps LH Turn When the column switch is moved to the LH position, current flows across the switch (C1739 on LHD, C1042 on RHD) to the following on GR wires: The LH front direction indicator lamp (C0001) The LH front side repeater lamp (C0013) The LH rear direction indicator lamp (C0928 on 90 and 100 vehicles, C1745 on 130 vehicles) The trailer socket (C0499) The LH indicator warning lamp located in the instrument pack (C0233). All except the trailer socket are earthed on B wires. The flashing sequence of the lamps is controlled by circuitry contained within the hazard warning switch. RH Turn When the column switch is moved to the RH position, current flows across the switch (C1739 on LHD, C1042 on RHD) to the following on GW wires: The RH front direction indicator lamp (C0002) The RH front side repeater lamp (C0013) The RH rear direction indicator lamp (C0837 on 90 and 110 vehicles, C1758 on 130 vehicles) The trailer socket (C0499) The RH indicator warning lamp located in the instrument pack (C0233). All except the trailer socket are earthed on B wires. The flashing sequence of the lamps is controlled by circuitry contained within the hazard warning switch. Trailer Socket When a left or right hand turn is selected, the hazard warning relay (C0547) also provides a feed to the trailer warning lamp located in the instrument pack (C0236) on an LGP wire. The trailer warning lamp will flash once, then extinguish. The lamp is earthed on a B wire.
DESCRIPTION AND OPERATION 4.50DEFENDER 02MY Hazard Warning Lamps When the hazard warning switch is pressed, current flows across the switch (C0096) to the hazard warning relay (C0547) on a LG wire. The energised hazard warning relay (C0547) provides a feed back to the hazard warning switch (C0096) on an LGN wire. The hazard warning switch (C0096) is now able to provide a feed to both the LH and RH direction indicator circuits simultaneously as follows: To the LH front direction indicator lamp (C0001) on a GR wire To the LH front side repeater lamp (C0013) on a GR wire To the LH rear direction indicator lamp (C0928 on 90 and 110 vehicles, C1745 on 130 vehicles) on a GR wire To the trailer socket (C0499) on a GR wire To the LH indicator warning lamp located in the instrument pack (C0233) on a GR wire To the RH front direction indicator lamp (C0002) on a GW wire To the RH front side repeater lamp (C0013) on a GW wire To the RH rear direction indicator lamp (C0837 on 90 and 110 vehicles, C1758 on 130 vehicles) on a GW wire To the trailer socket (C0499) on a GW wire To the RH indicator warning lamp located in the instrument pack (C0233) on a GW To the hazard warning lamp located in the instrument pack (C0233) on a BR wire. All except the trailer socket are earthed on B wires. The flashing sequence of the lamps is controlled by circuitry contained within the hazard warning switch. Anti-theft Alarm ECU When the vehicle alarm system is armed, the anti-theft alarm ECU flashes the hazard warning lamps three times. To do this, the anti-theft alarm ECU (C1980 on LHD, C0057 on RHD) provides a pulsed feed to both the LH and RH direction indicator lamp circuits on a GR and GW wire respectively. For more information on the anti-theft alarm system, refer to the Anti-theft Alarm and Central Door Locking (CDL) section of this manual. + ANTI–THEFT ALARM AND CENTRAL DOOR LOCKING (CDL).
DESCRIPTION AND OPERATION DEFENDER 02MY 4.51 INTERIOR LAMPS – NON ANTI-THEFT ALARM Description General Illumination of the front and rear interior lamps is controlled by the door switches. When any of the side doors are opened, both lamps will illuminate. The lamps will extinguish when all side doors are closed. The interior lamps can be switched on or off manually by moving the three position switch located on the lamp assembly to the required position. Operation Power Distribution Feed from the positive battery terminal (C0192) is supplied to fusible link 1 of the under seat fuse box (C0632) on an N wire. Fusible link 1 is connected in series with fusible link 2, which is also located in the under seat fuse box. Fusible link 2 (C0570) is connected to fuse 30 of the passenger compartment fuse box (C0595) by an NK wire. Fuse 30 (C0595) provides a constant battery feed to the following on PN wires: The front interior lamp (C0355) The rear interior lamp (C0356) – 90 models only The rear interior lamp (C0357) – 110 models only. Front Interior Lamp With the lamp switch in the central position, current flows across the bulb and switch contacts (C0355) to the following: To the RH front door switch (C0265) on a PW wire To the LH front door switch (C0106) on a PW wire To the RH rear door switch (C0108) on a PW then PU wire To the LH rear door switch (C0104) on a PW then PU wire. When any of the doors are opened, the relevant door switch contacts close creating an earth path for the lamp. With the lamp switch in the On position, current flows across the bulb and switch contacts (C1210) to earth on a B wire. With the lamp switch in the Off position, current cannot flow across the open switch contacts.
DESCRIPTION AND OPERATION 4.52DEFENDER 02MY Rear Interior Lamp – 90 Models With the lamp switch in the central position, current flows across the bulb and switch contacts (C0356) to the following: To the RH front door switch (C0265) on a PW wire To the LH front door switch (C0106) on a PW wire To the RH rear door switch (C0108) on a PW then PU wire To the LH rear door switch (C0104) on a PW then PU wire. When any of the doors are opened, the relevant door switch contacts close creating an earth path for the lamp. With the lamp switch in the On position, current flows across the bulb and switch contacts (C1209) to earth on a B wire. With the lamp switch in the Off position, current cannot flow across the open switch contacts. Rear Interior Lamp – 110 Models With the lamp switch in the central position, current flows across the bulb and switch contacts (C0357) to the following: To the RH front door switch (C0265) on a PW wire To the LH front door switch (C0106) on a PW wire To the RH rear door switch (C0108) on a PW then PU wire To the LH rear door switch (C0104) on a PW then PU wire. When any of the doors are opened, the relevant door switch contacts close creating an earth path for the lamp. With the lamp switch in the On position, current flows across the bulb and switch contacts (C1991) to earth on a B wire. With the lamp switch in the Off position, current cannot flow across the open switch contacts.
DESCRIPTION AND OPERATION DEFENDER 02MY 4.53 INTERIOR LAMPS – ANTI-THEFT ALARM Description General On vehicles fitted with an anti-theft alarm system, illumination of the front and rear interior lamps is controlled by the anti-theft alarm ECU. The anti-theft alarm ECU monitors the condition of all the doors, illuminating the interior lamps when any door (including the tail door) is opened. The anti-theft alarm ECU also features a time-out function, which extinguishes the lamps after 8 minutes if any of the doors are left open. The anti-theft alarm ECU will also illuminate the interior lamps if the vehicle is disarmed using the remote handset. The interior lamps can also be controlled manually, by moving the three position switch mounted in the lamp assembly to the On position. NOTE: The time-out function is by-passed if the three position switch is moved to the On position. Operation Power Distribution Feed from the positive battery terminal (C0192) is supplied to fusible link 1 and fuse 7 of the under seat fuse box (C0632) on an N wire. Fuse 7 (C0574) provides a constant battery feed to the anti-theft alarm ECU (C1979 on LHD, C0061 on RHD) on a PN wire. Fusible link 1 is connected in series with fusible link 2, which is also located in the under seat fuse box. Fusible link 2 (C0570) is connected to fuse 30 of the passenger compartment fuse box (C0595) by an NK wire. Fuse 30 (C0580) provides a constant battery feed to the following on PN wires: The front interior lamp (C0355) The rear interior lamp (C0356) – 90 vehicles only The rear interior lamp (C0357) – 110 vehicles only.
DESCRIPTION AND OPERATION 4.54DEFENDER 02MY Door Switches The anti-theft alarm ECU (C1979 on LHD, C0061 on RHD) monitors the condition of the door switches as follows: The driver door switch (C0266 on LHD, C2007 on RHD) on an SW wire The front passenger door switch (C0265 on LHD, C0106 on RHD) on a PU wire The LH rear door switch (C0104) on a PU wire The RH rear door switch (C0108) on a PU wire The tail door switch (C0615) on a PU wire – 90 Station Wagons only The tail door switch (C1992) on a PU wire – 110 Station Wagons only The tail door switch (C1993) on a PU wire – 90 Hard top vehicles with Central Door Locking (CDL) only The tail door switch (C1994) on a PU wire – 110 Hard top vehicles with CDL only. When any of the doors are opened, the relevant door switch contacts close creating an earth path. When the anti-theft alarm ECU registers an earth, it illuminates the interior lamps. Front Interior Lamp With the lamp switch in the central position, current flows across the bulb and switch contacts (C0355) to the anti-theft alarm ECU (C1979 on LHD, C0061 on RHD) on a PW wire. When the anti-theft alarm ECU registers an earth path via the door switches, it provides an earth path to illuminate the front interior lamp. With the lamp switch in the On position, current flows across the bulb and switch contacts (C1210) to earth on a B wire. With the lamp switch in the Off position, current cannot flow across the bulb and switch contacts.
DESCRIPTION AND OPERATION DEFENDER 02MY 4.55 Rear Interior Lamp – 90 Models With the lamp switch in the central position, current flows across the bulb and switch contacts (C0356) to the anti-theft alarm ECU (C1979 on LHD, C0061 on RHD) on a PW wire. When the anti-theft alarm ECU registers an earth path via the door switches, it provides an earth path to illuminate the front interior lamp. With the lamp switch in the On position, current flows across the bulb and switch contacts (C1209) to earth on a B wire. With the lamp switch in the Off position, current cannot flow across the bulb and switch contacts. Rear Interior Lamp – 110 Models With the lamp switch in the central position, current flows across the bulb and switch contacts (C0357) to the anti-theft alarm ECU (C1979 on LHD, C0061 on RHD) on a PW wire. When the anti-theft alarm ECU registers an earth path via the door switches, it provides an earth path to illuminate the front interior lamp. With the lamp switch in the On position, current flows across the bulb and switch contacts (C1991) to earth on a B wire. With the lamp switch in the Off position, current cannot flow across the bulb and switch contacts.
DESCRIPTION AND OPERATION 4.56DEFENDER 02MY INTERIOR ILLUMINATION Description General With the lighting switch in either the side lamp or headlamp position, the interior controls and gauges are illuminated so they can be easily located during night driving. Interior illumination is not controlled by the ignition switch. Operation Power Distribution Feed from the positive battery terminal (C0192) is supplied to fusible link 6 of the under seat fuse box (C0632) on an N wire. Fusible link 6 (C0571) is connected to the lighting switch (C1082 on LHD, C0041 on RHD) by an NU wire. When the lighting switch is turned to the side or headlamp position, current flows across the switch (C1082 on LHD, C0041 on RHD) to fuse 18 and fuse 20 of the passenger compartment fuse box (C0581) on an R wire. Interior Lamps When the lighting switch is turned to the side or headlamp position, fuse 18 (C0581) provides a feed to the following on RO wires: The fuel gauge (C1055) The coolant temperature gauge (C1053) The speedometer (C1060) The clock (C0232) The LH heater control (C1199) The RH heater control (C1200) All are earthed on B wires.
DESCRIPTION AND OPERATION DEFENDER 02MY 4.57 When the lighting switch is turned to the side or headlamp position, fuse 20 (C0581) provides a feed to the following on RO wires: The cigar lighter (C0074) The headlamp levelling switch (C0093) The heated front screen switch (C0131) The LH seat heat switch (C0250) The RH seat heat switch (C0249) The rear fog lamp switch (C0064 on LHD, C1741 on RHD) The RH front window switch (C0242) The LH front window switch (C0321) The heated rear window switch (C0072) The rear wiper switch (C0079) The radio/cassette player (C1315) The hazard warning switch (C0096). All are earthed on B wires.