Land Rover Freelander 2003my Electrical Library Rover Manual
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FUSE DETAILS 2.6FREELANDER 03MY FuseRatingVe h icleFunction F1 15 A Td4, K1.8, KV6, & NASRear washer switch, splice joint 45. F1 15 A Canada Rear washer switch, splice joint 45, daylight running relay. F2 15 A Td4 & K1.8 Reverse lamp switch, splice joint 16. F2 15 A KV6 & NAS Splice joint 16. F3 20 A All CCU, windscreen wash/wipe switch, windscreen wiper motor. F4 25 A All Blower motor switch. F5 10 A All Splice joint 21. F6 10 A All ECM. F7 5 A All ABS ECU. F8 15 A All Hazard warning switch, instrument pack, CCU. F9 15 A Low Line ICEAudio system head unit. F9 15 A Low Line ICE plus CDSplice joint 2. F9 15 A Mid-line ICE Audio system head unit. F9 15 A Mid-line ICE plus power amplifierSplice joint 4. F9 15 A Navigation SystemSplice joint 4. F10 15 A All Cigar lighter. F11 10 A All Splice joint 22. F12 15 A All Sunroof switch. F13 20 A All Accessory socket relay. F14 5 A 5 door Rear interior lamp, illumination relay, header 1000, header 0285. F14 5 A 3 door Interior lamp, illumination relay, header 1000, header 0285. F15 20 A All CCU. F16 10 A Td4, K1.8 & KV6CCU, header 286, header 1000, splice joint 40. F16 10 A NAS CCU, splice joint 40, RH headlamp. F17 10 A All Mirror switch. F18 15 A All Instrument pack, RH headlamp. F19 10 A All Alternator
FUSE DETAILS FREELANDER 03MY 2.7 F20 15 A All LH headlamp. F21 15 A All Not used. F22 10 A All Rear fog lamp relay. F23 20 A All HRW, HRW switch. F24 10 A All LH headlamp. F25 10 A All RH headlamp. F26 20 A All LH window switch. F27 20 A All RH window switch. F28 10 A Td4, K1.8, & KV6LH headlamp, LH headlamp levelling motor, LH tail lamp, trailer pick-up, headlamp levelling switch. F28 10 A NAS LH headlamp, LH tail lamp, trailer pick-up. F29 20 A All Splice joint 44. F30 10 A All Rear wiper relay. F31 20 A All Tail door window lift relay. F32 5 A All Engine immobilisation ECU. F33 20 A All Splice joint 28. F34 20 A All RH front window switch. F35 10 A All Header 292. F36 10 A All SRS DCU. FuseRatingVe hi cl eFunction
EARTH POINTS AND HEADERS FREELANDER 03MY 3.21 E ARTH POINTS AND HEADERSGeneral The following illustrations indicate the general position of each earth point and header on the vehicle. Refer to the Connector section for more information. Refer to the Circuit Diagrams for details of electrical components and their associated earth points. RHD
DESCRIPTION AND OPERATION FREELANDER 03MY 4.1 DE SCRIP TION AND OPERATIONANTI-THEFT ALARM AND CENTRAL DOOR LOCKING (CDL) DESCRIPTION General The anti-theft alarm system is controlled by the Central Control Unit (CCU), which is mounted on the rear of the passenger compartment fuse box. The alarm can be armed and disarmed using the vehicle key or remote handset. The two main features of the alarm system are: zPerimetric protection. zVolumetric protection. Perimetric Protection Perimetric protection secures against intrusion through the bonnet, doors, tail door or roof. The CCU monitors the state of the hinged panels after the alarm system has been armed. If a panel is opened after the alarm has been armed, the alarm will be triggered. Switches are incorporated into the door latch assemblies, the bonnet, and the tail door. Three door vehicles also have a roof on switch, to inform the CCU if the hard back has been removed, or the soft back is opened. Perimetric protection is initiated after a valid alarm request is received. If any panel is open when perimetric protection is activated (other than the roof), the alarm will enter a partially armed state. Volumetric Protection Volumetric protection provides protection for the vehicle interior. A volumetric sensor monitors the vehicle interior space and activates the alarm if unauthorised movement is detected. The volumetric sensor is located in a central position, behind the headlining. A fifteen second delay is initiated after the alarm has been armed before signals from the volumetric sensor are interpreted as an intrusion. This precaution is included in the CCU software to avoid accidental or nuisance triggering of the alarm. For a detailed description of the anti-theft alarm system, refer to the Security section of the System Description and Operation Workshop manual.
DESCRIPTION AND OPERATION 4.2FREELANDER 03MY OPERATION General Feed from the positive battery terminal (C0192) is supplied to the horn relay, fuse 6, fuse 7, fuse 10, and fusible link 4 (C0632) on an R wire. All are located in the engine compartment fuse box. Fuse 10 (C0575) provides a constant battery feed to the inertia switch (C0123) on a G wire. 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 4 (C0574) provides a constant battery feed to the CCU (C0593) and fuse 14 of the passenger compartment fuse box (C0581) on an NW wire. Fuse 14 (C0589) provides a feed to the alarm LED located in the instrument pack (C0230) and the transponder coil mounted around the ignition barrel (C0049) on P wires. Fuse 14 (C0583) also provides a feed to the diagnostic socket (C0040) and the roof on switch (3 door vehicles only) (C0497) on P wires. Door Switches In order for the perimetric alarm system to operate, the CCU monitors the condition of the door switches (including the tail door switch). The door switches are open circuit when the doors are closed. When the doors are opened, the switches close and an earth path is created. The CCU (C0428) is connected to the door switches as follows: zTo the driver door switch (C0441) on a PS then PW wire. zTo the passenger door switch (C0441) on a PW wire. zTo the LH rear door switch (C0442) on a PW wire. zTo the RH rear door switch (C0442) on a PW wire. zTo the tail door switch (C0616) on a BO wire. NOTE: Both front and both rear door switches have the same connector number as they utilise the same harness. The CCU treats the passenger door, and both rear doors as a single item. All door switches are earthed on B wires. Bonnet Switch In addition to the door switches, the CCU also monitors the condition of the bonnet switch. The bonnet switch is a normally open switch. When the bonnet is opened, the switch closes and an earth path is created. The CCU (C0428) provides a feed to the bonnet switch (C0007) on an RP wire. The switch (C0007) is earthed on a B wire. By monitoring the state of the bonnet switch, the CCU can determine if the bonnet has been opened illegally and sound the alarm if necessary.
DESCRIPTION AND OPERATION FREELANDER 03MY 4.3 Roof On Switch (3 Door Vehicles Only) The roof on switch (C0497) is located on the RH D post, and is provided a constant battery feed by fuse 14 of the passenger compartment fuse box (C0583) on a P wire. The roof on switch is closed when the hard back is fitted, or the soft back is in the fitted position. In this instance, current flows across the switch (C0497) to the CCU (C0428) on a PY wire. If the hard back is removed (or the soft back is folded down) the roof on switch becomes open circuit, and the feed to the CCU is removed. By monitoring the state of the roof on switch, the CCU can determine if the roof has been opened illegally and sound the alarm if necessary. Anti-theft Alarm LED Fuse 14 of the passenger compartment fuse box (C0589) provides a constant battery feed to the anti-theft alarm LED mounted in the instrument pack (C0230) on a P wire. The earth path for the LED (C0235) is controlled by the CCU (C0592) on a UK wire. By switching the earth path on and off, the CCU can control the flashing sequence of the LED. Inertia Switch Fuse 10 of the engine compartment fuse box (C0575) provides a constant battery feed to the inertia switch (C0123) on a G wire. The inertia switch is a normally closed switch. The inertia switch (C0123) is connected to the CCU (C0428) via the engine compartment fuse box by a GU then UG wire. When the inertia switch is tripped the switch opens, cutting the voltage supply to the CCU. Sensing this, the CCU unlocks all doors and cuts the electrical supply to the fuel pump. NOTE: The CCU will only unlock all doors if the ignition is switched on, and the anti-theft alarm isnt armed. For more information on the fuel pump, refer to the relevant Charging and Starting section of this manual. + CHARGING AND STARTING – Td4. + CHARGING AND STARTING – K SERIES. + CHARGING AND STARTING – KV6.
DESCRIPTION AND OPERATION 4.4FREELANDER 03MY Volumetric Sensor The CCU (C0429) provides a feed to the volumetric sensor (C0358 on 3 door vehicles, C1896 on 5 door vehicles) on a WB wire. When the alarm is armed, the volumetric sensor (C0358 on 3 door vehicles, C1896 on 5 door vehicles) returns a signal feed back to the CCU (C0428) on an NB wire. If the sensor detects movement within the vehicle, it withdraws the signal feed to the CCU. Sensing this, the CCU will sound the alarm. The CCU (C0429) also provides a gain setting signal to the volumetric sensor (C0358 on 3 door vehicles, C1896 on 5 door vehicles) on an SW wire. This enables the volumetric sensor to determine if it is looking at the interior of a 3 door vehicle or a 5 door vehicle and adjust its sensitivity accordingly. The volumetric sensor (C0358 on 3 door vehicles, C1896 on 5 door vehicles) is earthed on a B wire. Radio Frequency (RF) Receiver The CCU (C0429) provides a feed to the RF receiver (C0359) on a Y wire. The RF receiver (C0359) provides a 12 V feed back to the CCU (C0428) on an S wire. When an RF signal is received from the remote handset, the receiver switches the feed back to the CCU between 12 V and 0 V at high frequency. The RF receiver (C0359) is earthed on a B wire. Master Lock Switch The master lock switch is a non-latching rocker switch mounted on the centre console, below the radio. When the bottom (lock) half of the switch is pressed, current is able to flow from the CCU (C0428) to the master lock switch (C0328) on a BN wire. Current flows across the closed switch contacts to earth on a B wire. The CCU will now lock all the doors. NOTE: The alarm will not be armed when using the master lock switch. When the top (unlock) half of the switch is pressed, current is able to flow from the CCU (C0428) to the master lock switch (C0328) on a BK wire. Current flows across the closed switch contacts to earth on a B wire. The CCU will now unlock all the doors. Door Lock Motors When the CCU receives a request to lock or unlock the doors, it powers the door lock motors as follows:
DESCRIPTION AND OPERATION FREELANDER 03MY 4.5 Driver Door To lock the driver door, the CCU (C0430) provides a feed to the driver door lock motor (C0441) on a K wire. The motor (C0441) is provided an earth path via the CCU (C0430) on an O wire. This enables the motor to drive the latch to the lock position. To unlock the driver door, the CCU (C0430) provides a feed to the driver door lock motor (C0441) on an O wire. The motor (C0441) is provided an earth path via the CCU (C0430) on a K wire. This enables the motor to drive the latch to the unlock position. Passenger Door To lock the passenger door, the CCU (C0430) provides a feed to the passenger door lock motor (C0441) on a K wire. The motor (C0441) is provided an earth path via the CCU (C0430) on an O wire. This enables the motor to drive the latch to the lock position. To unlock the passenger door, the CCU (C0430) provides a feed to the passenger door lock motor (C0441) on an O wire. The motor (C0441) is provided an earth path via the CCU (C0430) on a K wire. This enables the motor to drive the latch to the unlock position. NOTE: The driver and passenger door lock motors have the same connector numbers as they utilise the same harness. LH Rear Door To lock the LH rear door, the CCU (C0430) provides a feed to the LH rear door lock motor (C0442) on a K wire. The motor (C0442) is provided an earth path via the CCU (C0430) on an O wire. This enables the motor to drive the latch to the lock position. To unlock the LH rear door, the CCU (C0430) provides a feed to the LH rear door lock motor (C0442) on an O wire. The motor (C0442) is provided an earth path via the CCU (C0430) on a K wire. This enables the motor to drive the latch to the unlock position. RH Rear Door To lock the RH rear door, the CCU (C0430) provides a feed to the RH rear door lock motor (C0442) on a K wire. The motor (C0442) is provided an earth path via the CCU (C0430) on an O wire. This enables the motor to drive the latch to the lock position. To unlock the RH rear door, the CCU (C0430) provides a feed to the RH rear door lock motor (C0442) on an O wire. The motor (C0442) is provided an earth path via the CCU (C0430) on a K wire. This enables the motor to drive the latch to the unlock position. NOTE: The LH rear and RH rear door lock motors have the same connector numbers as they utilise the same harness.