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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 4.10FREELANDER 02MY Starter Relay If the vehicle has been successfully re-mobilised, the immobilisation ECU (C0059) provides a feed to the starter relay coil (C0576) on an RW wire. The relay coil (C0576) is earthed on a B wire. The energised relay allows a feed from fusible link 7 to flow across the relay switch contacts (C0572) to the starter motor (C0179) on an NR wire (NR then B on Td4 vehicles). For more details of starter motor operation, refer to the Charging and Starting – Td4 , Charging and Starting – K Series or Charging and Starting – KV6 sections of this manual. + CHARGING AND STARTING – Td4. + CHARGING AND STARTING – K SERIES. + CHARGING AND STARTING – KV6. Diagnostic Socket The diagnostic socket (C0040) is connected to the immobilisation ECU (C0059) by a K wire, enabling the immobilisation ECU to be interrogated by TestBook or T4.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.11 WINDOWS DESCRIPTION Door Windows The front and rear electrically operated windows are opened and closed by using the appropriate non-latching switch mounted on the centre console. Rear window switches (if fitted) are also located on the rear door trim casings. Rear window operation can be controlled by the driver by pressing the rear window inhibit switch, which is also mounted on the centre console. The window lift system is controlled by the window lift ECU, which is located beneath the centre console, and will only operate when the ignition switch is in the ignition position. NOTE: When the ignition is switched off, the windows will still operate for approximately 40 seconds. This time out sequence will cease as soon as any of the doors are opened. This feature is not active on the tail door window. Tail Door Window The tail door window is opened and closed by using the non-latching switch mounted on the centre console, below the radio/cassette player. Tail door window operation is controlled by the Central Control Unit (CCU), and will only operate when the ignition switch is in the ignition position. NOTE: The 40 second time out function (see above) does not operate on the tail door window. Tail door window operation will cease as soon as the ignition is switched off. The tail door window can also be lowered using the remote handset. Pressing and holding the unlock button for approximately 2 seconds will inform the CCU to fully lower the tail door window. The tail door window can be raised by inserting the key in the tail door lock and turning it clockwise. NOTE: If the key is released before the tail door window has reached the top of its travel, the CCU will lower the window back to the fully open position. When the tail door handle is operated, a switch in the door handle informs the CCU to delay opening the door and to lower the window approximately 17 mm. This prevents the tail door from being opened with the window still engaged in the seal recess. When the tail door is closed, the CCU lifts the window to engage with the seal recess. NOTE: When the tail door is open, the tail door window can only be lowered. The window will only raise once the tail door is closed. If the rear wiper is operational, the tail door window will not lower until the wiper is on a downward stroke. When the window is in the lowered position, wiper operation will be suspended. The tail door window will be disabled if any of the following occur: The soft back is lowered. The soft back is removed. The hard back is removed.
DESCRIPTION AND OPERATION 4.12FREELANDER 02MY Tail Door Window Calibration When the CCU is changed from transit mode to a valid market mode, and after the vehicle battery has been disconnected, the tail door window must be calibrated to provide the CCU with a window position datum. When the CCU mode is changed to a valid market, or the battery reconnected, the CCU automatically begins the calibration process by energising the down contacts in the window lift relay module until the window lift motor stalls, to ensure the window is fully down. The calibration procedure is completed as follows: 1. Ensure the tail door is closed, the vehicle unlocked and the alarm disarmed. 2. On three door models, ensure the roof is on (hard back) or lowered and secured (soft back). 3. With the ignition on, use the console switch or the vehicle key in the tail door lock to raise the window until the motor stalls with the window fully closed. 4. Switch off the ignition. NOTE: If the calibration procedure is unsuccessful, the CCU will sound a warning for approximately 0.8 seconds and fully lower the window.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.13 OPERATION Front Door Windows General Feed from the positive battery terminal (C0192) is supplied to fusible link 3 and fusible link 4 of the engine compartment fuse box (C0632) on an R wire. Fusible link 4 (C0574) provides a constant battery feed to the window lift relay (C0587) on an NW wire. Fusible link 4 (C0574) also provides a constant battery feed to the Central Control Unit (CCU) (C0592) on an NW wire. The CCU is mounted directly onto the rear of the passenger compartment fuse box. 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 provides an ignition feed to the CCU (C0593). Window Lift Relay The earth path for the window lift relay coil is controlled by the CCU (C0593). When the CCU (C0593) receives an ignition on feed from fuse 8 of the passenger compartment fuse box, it will energise the window lift relay. The energised window lift relay provides a feed to fuse 33 and fuse 34, which are also located in the passenger compartment fuse box. Driver Door Window – LHD Vehicles Fuse 33 of the passenger compartment fuse box (C0586) provides a feed to the driver door window switch (C0321) and the window lift ECU (C0341) on RG wires. The window lift ECU (C0341) is earthed on a B wire. When the driver door window switch is pressed to lower the window, current flows across the switch (C0321) to the window lift ECU (C0341) on an OG wire. The window lift ECU (C0341) now provides a feed to the driver door window lift motor (C0326) on an R then OR wire. Current flows across the motor (C0326) back to the window lift ECU (C0341) on an OU then U wire. The window lift ECU (C0341) is provided an earth path via the driver door window switch (C0321) on an OY wire. The driver door window switch (C0321) is earthed on a B wire. The window will now move to the fully lowered position. When the driver door window switch is pressed to raise the window, current flows across the switch (C0321) to the window lift ECU (C0341) on an OY wire. The window lift ECU (C0341) now provides a feed to the driver door window lift motor (C0326) on a U then OU wire. Current flows across the motor (C0326) back to the window lift ECU (C0341) on an OR then R wire. The window lift ECU (C0341) is provided an earth path via the driver window switch (C0321) on an OG wire. The driver door window switch (C0321) is earthed on a B wire. The window will now move to the fully raised position.
DESCRIPTION AND OPERATION 4.14FREELANDER 02MY Driver Door Window – RHD Vehicles Fuse 34 of the passenger compartment fuse box (C0586) provides a feed to the driver door window switch (C0242) and the window lift ECU (C0341) on SO wires. The window lift ECU (C0341) is earthed on a B wire. When the driver door window switch is pressed to lower the window, current flows across the switch (C0242) to the window lift ECU (C0341) on an OG wire. The window lift ECU (C0341) now provides a feed to the driver door window lift motor (C0326) on an R then OR wire. Current flows across the motor (C0326) back to the window lift ECU (C0341) on an OU then U wire. The window lift ECU (C0341) is provided an earth path via the driver door window switch (C0242) on an OY wire. The driver door window switch (C0242) is earthed on a B wire. The window will now move to the fully lowered position. When the driver door window switch is pressed to raise the window, current flows across the switch (C0242) to the window lift ECU (C0341) on an OY wire. The window lift ECU (C0341) now provides a feed to the driver door window lift motor (C0326) on a U then OU wire. Current flows across the motor (C0326) back to the window lift ECU (C0341) on an OR then R wire. The window lift ECU (C0341) is provided an earth path via the driver door window switch (C0242) on an OG wire. The driver door window switch (C0242) is earthed on a B wire. The window will now move to the fully raised position. Front Passenger Door Window – LHD Vehicles Fuse 34 of the passenger compartment fuse box (C0586) provides a feed to the front passenger door window switch (C0242) on an SO wire. When the passenger door window switch is pressed to lower the window, current flows across the switch (C0242) to the passenger door window lift motor (C0326) on an OR wire. Current flows across the motor (C0326) and back to the passenger door window switch (C0242) on an OU wire. The motor is provided an earth path via the passenger door window switch (C0242) on a B wire. The passenger door window will now move downwards until the switch is released. When the passenger door window switch is pressed to raise the window, current flows across the switch (C0242) to the passenger door window lift motor (C0326) on an OU wire. Current flows across the motor (C0326) and back to the passenger door window switch (C0242) on an OR wire. The motor is provided an earth path via the passenger door window switch (C0242) on a B wire. The passenger door window will now move upwards until the switch is released.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.15 Front Passenger Door Window – RHD Vehicles Fuse 33 of the passenger compartment fuse box (C0586) provides a feed to the front passenger door window switch (C0321) on an RG wire. When the passenger door window switch is pressed to lower the window, current flows across the switch (C0321) to the passenger door window lift motor (C0326) on an R then OR wire. Current flows across the motor (C0326) and back to the passenger door window switch (C0321) on an OU then U wire. The motor is provided an earth path via the passenger door window switch (C0321) on a B wire. The passenger door window will now move downwards until the switch is released. When the passenger door window switch is pressed to raise the window, current flows across the switch (C0321) to the passenger door window lift motor (C0326) on a U then OU wire. Current flows across the motor (C0326) and back to the passenger door window switch (C0321) on an OR then R wire. The motor is provided an earth path via the passenger door window switch (C0321) on a B wire. The passenger door window will now move upwards until the switch is released. NOTE: The driver door window lift motor and the passenger door window lift motor have the same connector numbers as they utilise the same harness. Rear Door Windows General Feed from the positive battery terminal (C0192) is supplied to fusible link 3 and fusible link 4 of the engine compartment fuse box (C0632) on an R wire. Fusible link 4 (C0574) provides a constant battery feed to the window lift relay (C0587) on an NW wire. The window lift relay is located in the passenger compartment fuse box. Fusible link 4 (C0574) also provides a constant battery feed to the Central Control Unit (CCU) (C0593) and the auxiliary relay on an NW wire. The CCU is mounted directly onto the rear of the passenger compartment fuse box. 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 provides an ignition feed to the CCU (C0593). Auxiliary Relay In addition to controlling operation of the electric sunroof, the auxiliary relay also controls operation of the rear electric windows. The earth path for the auxiliary relay coil is controlled by the CCU. When the CCU (C0593) receives an ignition on feed from fuse 8 of the passenger compartment fuse box, it will energise the auxiliary relay. The energised auxiliary relay provides a feed to fuse 26 and fuse 27, which are also located in the passenger compartment fuse box.
DESCRIPTION AND OPERATION 4.16FREELANDER 02MY LH Rear Window Fuse 26 of the passenger compartment fuse box (C0585) provides a feed to the console mounted LH rear window switch (C0264) on a WK wire. When the LH rear console switch is pressed to lower the window, current flows across the switch (C0264) to the door mounted switch (C0732) on a GR then WR wire. The door mounted switch (C0732) now provides a feed to the window lift motor (C0304) on an R wire. Current flows across the motor (C0304) and back to the door mounted switch (C0732) on a U wire. The door mounted switch (C0732) is provided an earth path via the console mounted switch (C0264) on a WU then GU wire. The console mounted switch (C0264) is earthed on a B wire. The window will now move downwards until the switch is released. When the LH rear console switch is pressed to raise the window, current flows across the switch (C0264) to the door mounted switch (C0732) on a GU then WU wire. The door mounted switch (C0732) now provides a feed to the window lift motor (C0304) on a U wire. Current flows across the motor (C0304) and back to the door mounted switch (C0732) on an R wire. The door mounted switch (C0732) is provided an earth path via the console mounted switch (C0264) on a WR then GR wire. The console mounted switch (C0264) is earthed on a B wire. The window will now move upwards until the switch is released. RH Rear Window Fuse 27 of the passenger compartment fuse box (C0586) provides a feed to the console mounted RH rear window switch (C0263) on a WN wire. When the RH rear console switch is pressed to lower the window, current flows across the switch (C0263) to the door mounted switch (C0732) on a WR wire. The door mounted switch (C0732) now provides a feed to the window lift motor (C0304) on an R wire. Current flows across the motor (C0304) and back to the door mounted switch (C0732) on a U wire. The door mounted switch (C0732) is provided an earth path via the console mounted switch (C0264) on a WU wire. The console mounted switch (C0263) is earthed on a B wire. The window will now move downwards until the switch is released. When the RH rear console switch is pressed to raise the window, current flows across the switch (C0263) to the door mounted switch (C0732) on a WU wire. The door mounted switch (C0732) now provides a feed to the window lift motor (C0304) on a U wire. Current flows across the motor (C0304) and back to the door mounted switch (C0732) on an R wire. The door mounted switch (C0732) is provided an earth path via the console mounted switch (C0264) on a WR wire.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.17 The console mounted switch (C0263) is earthed on a B wire. The window will now move upwards until the switch is released. NOTE: Both rear door window lift motors, and both rear door mounted switches have the same connector numbers as they utilise the same harness. Tail Door Window General Feed from the positive battery terminal (C0192) is supplied to fusible link 3 and fusible link 4 of the engine compartment fuse box (C0632) on an R wire. Fusible link 4 (C0574) is connected to fuse 14 and fuse 31 of the passenger compartment fuse box (C0587) by an NW wire. Fuse 31 (C0583) provides a constant battery feed to the tail door window lift relay (C0043) on a PN wire. Fuse 14 (C0583) provides a constant battery feed to the roof on switch (3 door vehicles only) (C0497) on a P wire. Fusible link 4 (C0574) also provides a constant battery feed to the Central Control Unit (CCU) (C0593), via the passenger compartment fuse box (C0587) on an NW wire. The CCU (C0593) is earthed via the passenger compartment fuse box (C0587) on a B 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 to fuse 8 of the passenger compartment fuse box (C0588) on a G wire. Fuse 8 provides an ignition feed to the CCU (C0593). Tail Door Wiper Motor The CCU will not operate the tail door window if the rear wiper is operational. The CCU (C0428) monitors the condition of the rear wiper by providing a feed to the off screen park switch (C0388) on an OB wire. The off screen park switch is open circuit at all times except when the rear wiper is in the park position. When the wiper is in the park position, current flows across the switch contacts (C0388) to earth on a B wire. The CCU will only operate the tail door window when it registers this earth path. The CCU (C0428) also monitors the position of the rear wiper by providing a feed to the on screen switch (C0388) on an NG wire. The on screen switch is open circuit at all times except when the rear wiper is at the top of its travel. At this point, the switch contacts close, and an earth path is created on a B wire. NOTE: The rear wiper will not operate if the tail door glass has not been calibrated. For more information on rear wiper operation, refer to the Wipers and Washers section of this manual. + WIPERS AND WASHERS.
DESCRIPTION AND OPERATION 4.18FREELANDER 02MY 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. The CCU will now inhibit operation of the tail door window. Tail Door Window Switch The tail door window switch is located on the centre console. The CCU (C0428) provides feeds to the switch (C0354) on a BR wire and a BK wire. When the switch is moved to the down position, current supplied to the switch on the BR wire flows across the closed switch contacts to earth on a B wire. When the CCU registers this earth, it powers the tail door window down. When the switch is moved to the up position, current supplied by the CCU on the BK wire flows across the closed switch contacts to earth on a B wire. When the CCU registers this earth, it powers the tail door window up. Up When up operation of the tail door window is requested, the CCU (C0429) provides a feed to the window lift relay module (C0043) on an RU wire. The relay module (C0043) is now able to provide a feed to the window motor (C0612) on a UB wire. Current flows across the motor windings (C0612) and back to the relay module (C0043) on a UG wire. The relay module (C0043) is earthed on a B wire. Down When down operation of the tail door window is requested, the CCU (C0429) provides a feed to the window lift relay module (C0043) on an RG wire. The relay module (C0043) is now able to provide a feed to the window motor (C0612) on a UG wire. Current flows across the motor windings (C0612) and back to the relay module (C0043) on a UB wire. The relay module (C0043) is earthed on a B wire. Tail Door Window Motor The CCU needs to know the position of the tail door window at all times (see Description). To do this, the CCU (C0429) provides a feed to a hall effect sensor located within the tail door window motor (C0612) on an SP wire. The sensor (C0612) is provided an earth by the CCU (C0430) on a KB wire. The hall effect sensor (C0612) provides a signal feed to the CCU (C0429) on an SR wire, informing it of the position of the tail door window.
DESCRIPTION AND OPERATION FREELANDER 02MY 4.19 Tail Door Open Switch The CCU (C0428) monitors the condition of the tail door exterior handle by providing a feed to the tail door open switch (C0615) on an N wire. When the tail door handle is operated, current flows across the switch (C0615) to earth on a B wire. When the CCU registers this earth, it delays opening the tail door and lowers the tail door window approximately 17 mm. The CCU (C0428) also monitors the condition of the tail door barrel switch (C0615) on a US wire. When the key is turned inside the barrel, current flows across the switch (C0615) to earth on a B wire. If the CCU registers a continuous earth path for approximately 2 seconds, it will lower the tail door glass.