SAFARI

ELECTRICALS 43 Fig. 54 Fig. 55 Circuit Diagram Master cum follower unit/ Follower unit * For master cum follower unit, the changeover of sensor switch contacts takes place at 8 +0.5 mm from position A while travelling in either direction (from A to D or from D to A). Position D indicates lock position. UNIT 18.CENTRAL LOCKING SYSTEM (Fig. 54) This vehicle has a single key for operating ignition, steering lock, glove box and doors. All the four doors and rear door have electrically operated central locking system. With central locking system all the doors can be locked or unlocked from out side with the key or by remote (if fitted). For remote control central locking system, refer manufacturers operating manual. From inside, the doors can be locked or unlocked by operating the knob on the side door. The system consists of master cum follower at driver side door and one follower each at co- driver side door, rear doors RH/LH, tail gate and a control module. Preliminary checks Carry out the following preliminary checks as per given order before starting the repairs. l Check fuse. Replace blown fuse, if any. l Check battery condition and state of charge. Recharge or replace battery as required. l Check all related electrical connections including earth connection for cleanliness and proper gripping. Check specially the control unit earth connection. Rectify as required. l Operate driver’s side door lock from inside and outside and check functioning of central locking system. Locate the faulty unit and carry out repairs as given in subsequent paras. l If the central locking system is found inoperative in total, check for the power supply at control box input end. If this is OK, remove the control unit and check for proper functioning on the rig. (Note: A simple test rig as per circuit diagram can be made to check proper functioning of various electrical aggregates of central locking system. Fig. 55) Removal of Master cum follower unit/ Follower unit a) Take the door window glass, in upper most position. b) Remove door inner trim. Refer body group. Open out required portion of plastic membrane.