Land Rover Freelander 2003my Electrical Library Rover Manual
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Page 61
DESCRIPTION AND OPERATION 4.36FREELANDER 03MY CHARGING AND STARTING – K SERIES DESCRIPTION Starting The starting system on the vehicle comprises a 12 volt starter motor which drives the engine to start the combustion process. The starter converts electrical energy into mechanical power. The vehicle electrical system must be capable of supplying sufficient power to enable the engine to be cranked. Charging The charging system comprises a battery and an alternator. The battery must be of a sufficient...
Page 62
DESCRIPTION AND OPERATION FREELANDER 03MY 4.37 Starting Main Relay Fuse 6 of the passenger compartment fuse box (C0581) provides an ignition feed to the Engine Control Module (ECM) (C0913) on a W wire. When the ECM receives this feed, it energises the main relay by providing an earth path for the relay coil (C0576) on a WK wire. The energised main relay is now able to provide a feed to the fuel pump relay. The fuel pump relay is also located in the engine compartment fuse box. For a detailed...
Page 63
DESCRIPTION AND OPERATION 4.38FREELANDER 03MY Starter Motor and Starter Motor Solenoid The starter motor solenoid coil (C0179) receives a feed from the energised starter motor relay (C0572) on an NR wire (see above). The energised starter motor solenoid allows a battery feed (C0178) to flow across the switch contacts and power the starter motor. Central Control Unit (CCU) The CCU (C0428) receives a feed from the inertia switch (C0123) via the engine compartment fuse box (C0576) on a UG wire. If this...
Page 64
DESCRIPTION AND OPERATION FREELANDER 03MY 4.39 Ignition/No Charge Warning Lamp Fuse 8 of the passenger compartment fuse box (C0589) provides an ignition feed to the ignition/no charge warning lamp (C0233) on a G wire. Current flows across the lamp (C0233) and is provided an earth path by the alternator (C0185) on an NY wire. The warning lamp will now illuminate. When the alternator is charging, it provides a feed to the warning lamp (C0233) on the NY wire. Because the potential difference across the...
Page 65
DESCRIPTION AND OPERATION 4.40FREELANDER 03MY CHARGING AND STARTING – KV6 DESCRIPTION Starting The starting system on the vehicle comprises a 12 volt starter motor which drives the engine to start the combustion process. The starter converts electrical energy into mechanical power. The vehicle electrical system must be capable of supplying sufficient power to enable the engine to be cranked. Charging The charging system comprises a battery and an alternator. The battery must be of a sufficient...
Page 66
DESCRIPTION AND OPERATION FREELANDER 03MY 4.41 Starting Main Relay Fuse 6 of the passenger compartment fuse box (C0581) provides an ignition feed to the Engine Control Module (ECM) (C0371) on a W wire. When the ECM receives this feed, it energises the main relay by providing an earth path for the relay coil (C0578) on a WK wire. The energised main relay is now able to provide a feed to the fuel pump relay. The fuel pump relay is also located in the engine compartment fuse box. Inertia Switch Fuse 10...
Page 67
DESCRIPTION AND OPERATION 4.42FREELANDER 03MY Starter Motor and Starter Motor Solenoid The starter motor solenoid coil (C0179) receives a feed from the energised starter relay (C0572) on an NR wire (see above). The energised starter motor solenoid allows a battery feed (C0178) to flow across the switch contacts and power the starter motor. Central Control Unit (CCU) The CCU (C0428) receives a feed from the inertia switch (C0123) via the engine compartment fuse box (C0576) on a UG wire. If this feed...
Page 68
DESCRIPTION AND OPERATION FREELANDER 03MY 4.43 Ignition/No Charge Warning Lamp Fuse 8 of the passenger compartment fuse box (C0589) provides an ignition feed to the ignition/no charge warning lamp (C0233) on a G wire. Current flows across the lamp (C0233) and is provided an earth path by the alternator (C0053) on an NY wire. The warning lamp will now illuminate. When the alternator is charging, it provides a feed to the warning lamp (C0233) on the NY wire. Because the potential difference across the...
Page 69
DESCRIPTION AND OPERATION 4.44FREELANDER 03MY CHARGING AND STARTING – KV6 (NORTH AMERICA) DESCRIPTION Starting The starting system on the vehicle comprises a 12 volt starter motor which drives the engine to start the combustion process. The starter converts electrical energy into mechanical power. The vehicle electrical system must be capable of supplying sufficient power to enable the engine to be cranked. Charging The charging system comprises a battery and an alternator. The battery must be of a...
Page 70
DESCRIPTION AND OPERATION FREELANDER 03MY 4.45 Starting Main Relay Fuse 6 of the passenger compartment fuse box (C0581) provides an ignition feed to the Engine Control Module (ECM) (C0603) on a W wire. When the ECM receives this feed, it energises the main relay by providing an earth path for the relay coil (C0578) on an NG wire. The energised main relay is now able to provide a feed to the fuel pump relay. The fuel pump relay is also located in the engine compartment fuse box. Inertia Switch Fuse 10...