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Land Rover Freelander 2002my Electrical Library 3rd Edition Rover Manual
Land Rover Freelander 2002my Electrical Library 3rd Edition Rover Manual
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DESCRIPTION AND OPERATION 4.130FREELANDER 02MY 5 Door Fuse 14 of the passenger compartment fuse box (C0580) provides a constant battery feed to the front interior lamp (C0355) on a P wire. When the interior lamp switch is in the normal position, the earth path for the lamp (C0355) is controlled by the CCU (C0593) via the passenger compartment fuse box (C0580) on a PW wire. The CCU will illuminate the interior lamp if it senses any of the doors are open (see Central Control Unit – CCU). When the switch is pressed, current flows across the bulb (C0355) to earth on a B wire. This results in the lamp being illuminated irrespective of the condition of the door switches. Fuse 14 (C0580) also provides a constant battery feed to the rear interior lamp (C0356) on a P wire. When the interior lamp switch is in the normal position, the earth path for the lamp (C0356) is controlled by the CCU (C0593) via the passenger compartment fuse box (C0580) on a PW wire. The CCU will illuminate the interior lamp if it senses any of the doors are open (see Central Control Unit – CCU). When the switch is pressed, current flows across the bulb (C0356) to earth on a B wire. This results in the lamp being illuminated irrespective of the condition of the door switches. Map Reading Lamps (5 Door Vehicles Only) Fuse 14 of the passenger compartment fuse box (C0580) provides a constant battery feed to both the LH and RH map reading lamp switches (C0355) on a P wire. When either of the switches are pressed, current is able to flow across the switch to the map reading lamp bulb. Both bulbs are earthed via the lamp fixings. Load Space Lamp Fuse 14 of the passenger compartment fuse box (C0583) provides a constant battery feed to the load space lamp (C0119) on a P wire. The earth path for the load space lamp (C0120) is controlled by the CCU (C0593) via the passenger compartment fuse box (C0580) on a PW wire. The CCU will illuminate the interior lamp if it senses the tail door is open (see Central Control Unit – CCU). Glove Box Lamp Fusible link 12 of the engine compartment fuse box (C0575) provides a constant battery feed to the lighting switch (C0041) on an RN wire. When the lighting switch is turned to the side or headlamp position, current flows across the switch to fuse 16 of the passenger compartment fuse box (C0587) on an R wire. Fuse 16 (C0589) provides a feed to the glove box lamp (C0227) on an RO wire. The earth path for the glove box lamp (C0235) is controlled by the glove box switch (C0238) on a BR wire. When the glove box is opened, the switch closes and an earth path is created via the passenger compartment fuse box (C0587) on a B wire.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.131 Vanity Mirrors (02MY Vehicles Only) Fuse 14 of the passenger compartment fuse box (C0580) provides a constant battery feed to the LH (C0780 on 3 door vehicles, C0737 on 5 door vehicles) and RH (C0736) vanity mirror lamps on P wires. The lamps are earthed on B wires.
DESCRIPTION AND OPERATION 4.132FREELANDER 02MY INTERIOR ILLUMINATION DESCRIPTION General Interior illumination provides background lighting for the instrument pack and control switch graphics. Interior illumination operates when the lighting switch is turned to the side or headlamp position, irrespective of ignition switch position. OPERATION General Feed from the positive battery terminal (C0192) is supplied to fusible link 12 of the engine compartment fuse box (C0632) on an R wire. Fusible link 12 (C0575) is connected to the lighting switch (C0041) by an RN wire. When the lighting switch is turned to the side or headlamp position, current flows across the switch (C0041) to fuse 16 of the passenger compartment fuse box (C0587) on an R wire. Fuse 16 (C0582) provides a feed to the following on RO wires: The cruise control master switch (C0749). The hazard warning switch (C0096). The Heated Rear Window (HRW) switch (C0072). The front LH window switch (C0321). The front RH window switch (C0242). The Hill Descent Control (HDC) switch (C0878). The tail door window switch (C0354). The Central Door Locking (CDL) switch (C0328). The LH seat switch (C0249). The RH seat switch (C0250). The LH rear window switch (C0264) (5 door vehicles only). The RH rear window switch (C0263) (5 door vehicles only). The sunroof switch (C0363). The cigar lighter (C0074). The radio/cassette player (C0098). The radio/cassette player (C0921) (NAS vehicles only). The heater controls (C0051). The air conditioning (a/c) switch pack (C0275). The fresh/recirculated air switch (C0750). The Heated Front Screen (HFS) switch (C0131). All the above are earthed on B wires.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.133 Fuse 16 (C0589) also provides a feed to the following on RO wires: The instrument pack (C0233). The rear fog lamp switch (C0064). The radio remote display/clock (C0241). The rear screen washer switch (C0073). The rear screen wiper switch (C0079). All the above are earthed on B wires. Instrument Dimmer The instrument dimmer is a rotary potentiometer mounted on the fascia below the instrument pack. When the lighting switch is turned to the side or headlamp position, current flows across the switch (C0041) to fuse C (C1875) on an RW wire. Fuse C (C1875) is connected to the instrument dimmer (C0201) by an RB wire. The dimmer (C0201) provides a feed to all the switches and controls mentioned previously on RO wires. The switch (C0201) also contains a tell-tale LED, which is earthed on a B wire.
DESCRIPTION AND OPERATION 4.134FREELANDER 02MY INSTRUMENTS DESCRIPTION General The instrument pack is a totally electronic controlled device receiving electrical signals from sender units, and CAN messages from the Engine Control Module (ECM), the ABS ECU, the Automatic Transmission Control Unit (ATCU) and the cruise control interface unit (Td4 vehicles only). The instrument pack transposes these via a microprocessor into analogue gauge read out and warning lamp illumination. The warning lamps illuminate in one of four colours, which indicate the level of importance of the warning as follows: Red = Warning. Yellow = Caution. Green = System operative. Blue = Headlamp main beam operative. For a detailed description of the instrument pack, refer to the Instruments section of the System Description and Operation Workshop manual.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.135 OPERATION General Feed from the positive battery terminal (C0192) is supplied to the following (C0632) on an R wire: Fuse 7 Fusible link 12 Fusible link 9 Fusible link 4 Fusible link 3 Fuse 7 (C0576) provides a constant battery feed to the hazard warning relay located in the passenger compartment fuse box (C0581) on an NO wire. Fusible link 12 (C0575) provides a constant battery feed to the lighting switch (C0041) on an RN wire. Fusible link 9 (C0570) is connected to the main/dipped beam relay and fuse 22 of the passenger compartment fuse box (C0587) by an N wire. Fuse 22 provides a constant battery feed to the rear fog lamp relay, which is also located in the passenger compartment fuse box. Fusible link 4 (C0574) is connected to fuse 14 of the passenger compartment fuse box (C0587) by an NW wire. Fuse 14 (C0589) provides a constant battery feed to the instrument pack ECU (C0230) on a P wire. Fusible link 3 (C0571) is connected to the ignition switch (C0028) by an N wire. When the ignition switch is turned to the ignition position, current flows across the switch (C0028) to fuse 8 of the passenger compartment fuse box (C0588) on a G wire. Fuse 8 (C0589) provides an ignition feed to the instrument pack (C0233) on a G wire.
DESCRIPTION AND OPERATION 4.136FREELANDER 02MY The warning lamps contained within the instrument operate as follows: The LH direction indicator warning lamp (C0233) receives a feed from the hazard warning lamp relay (C0589) on a GR wire. The lamp is earthed on a B wire. The RH direction indicator warning lamp (C0233) receives a feed from the hazard warning lamp relay (C0589) on a GW wire. The lamp is earthed on a B wire. The main beam warning lamp (C0233) receives a feed from the main/dipped beam relay via fuse 18 of the passenger compartment fuse box (C0589) on a UG wire. The lamp is earthed on a B wire. The rear fog warning lamp (C0230) receives a feed from the rear fog lamp relay (C0589) on a UY wire. The lamp is earthed on a B wire. The glow plug warning lamp receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the Engine Control Module (ECM) (C0331) via the CAN-BUS on YN (Low) and YB (High) wires. The seat belt warning lamp receives an ignition feed from fuse 8 of the passenger compartment fuse box (C0589) on a G wire. Illumination of the lamp is controlled by the Central Control Unit (CCU) (C0593) via the passenger compartment fuse box (C0589) on an RP wire. NOTE: The seat belt warning lamp is not operational in all markets. The SRS warning lamp receives an ignition feed from fuse 8 of the passenger compartment fuse box (C0589) on a G wire. Illumination of the lamp is controlled by the airbag DCU (C0256) on a YR wire. The ABS warning lamp receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the ABS ECU (C0500 on 01MY vehicles, C0501 on 02MY vehicles) via the CAN-BUS on YN (Low) and YB (High) wires. The door open warning lamp receives an ignition feed from fuse 8 of the passenger compartment fuse box (C0589) on a G wire. Illumination of the lamp is controlled by the CCU (C0593) via the passenger compartment fuse box (C0589) on a PB wire. The hazard warning lamp (C0230) receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the hazard warning switch (C0096) on a SY wire. The Hill Descent Control (HDC) warning lamp receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the ABS ECU (C0500 on 01MY vehicles, C0501 on 02MY vehicles) via the CAN-BUS on YN (Low) and YB (High) wires. The Hill Descent Control (HDC) information lamp receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the ABS ECU (C0500 on 01MY vehicles, C0501 on 02MY vehicles) via the CAN-BUS on YN (Low) and YB (High) wires.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.137 The handbrake/low brake fluid warning lamp receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the handbrake switch (C0091) on a BW wire. When the handbrake is applied, the switch contacts close and an earth path is created, illuminating the lamp. Illumination of the lamp is also controlled by the ABS ECU (C0500 on 01MY vehicles, C0501 on 02MY vehicles) via the CAN BUS on YN (Low) and YB (High) wires. If the warning lamp is illuminated while the handbrake is released, urgent attention is required to the braking system. The low oil pressure warning lamp receives an ignition feed from fuse 8 of the passenger compartment fuse box (C0589) on a G wire. Illumination of the lamp is controlled by the oil pressure switch (C0187) on a WN wire (WN then NG on Td4 vehicles). The ignition/no charge warning lamp receives an ignition feed from fuse 8 of the passenger compartment fuse box (C0589) on a G wire. Illumination of the lamp is controlled by the ECM (C0331) on Td4 vehicles, and the alternator (C0053) on K1.8 and KV6 vehicles. The anti-theft alarm LED receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the CCU (C0592) via the passenger compartment fuse box (C0589) on a UK wire. The overspeed warning lamp receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the ABS ECU (C0500 on 01MY vehicles, C0501 on 02MY vehicles) via the CAN-BUS on YN (Low) and YB (High) wires. NOTE: The overspeed warning lamp is not operational in all markets. The cruise control warning lamp receives a constant battery feed from fuse 14 of the passenger compartment fuse box (C0589) on a P wire. On KV6 vehicles, illumination of the warning lamp is controlled by the cruise control ECU (C0239) on a WU wire. On Td4 vehicles, illumination of the warning lamp is controlled by the cruise control interface unit (C1959) via the CAN-BUS on YN (Low) and YB (High) wires. NOTE: The list of CAN-BUS connections is by no means exhaustive. For more details, refer to the Communication Databuses and Instruments sections of the System Description and Operation Workshop manual. Speedometer The speedometer is driven by a CAN message from the Engine Control Module (ECM) on YN (Low) and YB (High) wires. For more information on speedometer operation, refer to the Instruments section of the System Description and Operation Workshop manual. Tachometer The tachometer is driven by a CAN message from the Engine Control Module (ECM) on YN (Low) and YB (High) wires. For more information on tachometer operation, refer to the Instruments section of the System Description and Operation Workshop manual.
DESCRIPTION AND OPERATION 4.138FREELANDER 02MY Engine Coolant Temperature Gauge The Engine Coolant Temperature (ECT) gauge is driven by a CAN message from the Engine Control Module (ECM) on YN (Low) and YB (High) wires. For more information on ECT gauge operation, refer to the Instruments section of the System Description and Operation Workshop manual. Fuel Gauge The instrument pack (C0230) provides a feed to the fuel tank sender (C0114) on a GB wire. The sender is located within the fuel tank and is earthed on a B wire. The sender is a float operated rotary potentiometer, which provides a variable resistance to earth for the output from the instrument pack. For more information on fuel gauge operation, refer to the Instruments section of the System Description and Operation Workshop manual.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.139 HORNS DESCRIPTION General Two vehicle horns are fitted, one below each headlamp on either side of the engine bay. One horn emits a high tone, the other a low tone. The horns are operated by pressing either of the two buttons located on the steering wheel. The horn circuit is fed directly from the battery and operates independently of the ignition circuits. The horns are also used as an audible warning if the anti-theft alarm system is triggered. For more information on anti-theft alarm operation, refer to the Anti-theft Alarm and Central Door Locking (CDL) section of this manual. + ANTI-THEFT ALARM AND CENTRAL DOOR LOCKING (CDL). OPERATION Horns Feed from the positive battery terminal (C0192) is supplied to fusible link 4, fuse 6, and the horn relay coil (C0632) on an R wire. All are located in the engine compartment fuse box. The horn relay coil (C0576) is connected to the horn switches (C1254) via the rotary coupler (C0082) by a PY then P wire. The horn switches are normally open switches. When either of the horn switches are depressed, the switch contacts close and an earth path is created via the rotary coupler (C0082) on a B wire. The horn relay (C0576) is now energised, and is able to provide a feed from fuse 6 to the LH horn (C0003) on a PB wire. The horn relay (C0570) also provides a feed to the RH horn (C0004) on a PB wire. Both horns are earthed on B wires. Alarm Trigger Fusible link 4 (C0574) provides a constant battery feed to the Central Control Unit (CCU) (C0593) via the passenger compartment fuse box (C0587) on an NW wire. If the alarm is triggered, the CCU (C0430) provides an earth path for the relay coil (C0576) on a PY wire. The horns relay is now able to provide a feed to the horns as described above. By pulsing the earth path for the horn relay on and off, the CCU is able to control operation of the horns. For more information on alarm operation, refer to the Anti-theft Alarm and Central Door Locking (CDL) section of this manual. + ANTI-THEFT ALARM AND CENTRAL DOOR LOCKING (CDL).