Index Jaguar Jaguar X-Type Sedan and Estate (Wagon) (2.0 L, 2.5 L and 3.0 L Gasoline; 2.0 L and 2.2 L, Diesel) - manual 2001-2009 year
|
|
Published: 11-May-2011 Battery and Charging System - General Information - Charging System Description and Operation Vehicles with 2.0L, 2.5L or 3.0L engines The charging system consists of a 120 amp output generator and regulator assembly which generates current to supply the vehicle electrical The generator is belt driven by the accessory drive belt. Accessory Drive (303-05 Accessory Drive, Description and Operation). When the engine is started, the generator begins to generate alternating current (AC) which is converted to direct current (DC) internally. The generator is solidly mounted to the engine timing cover and is driven at 2.8 times the engine speed. Vehicles fitted with manual transmission have a one way clutch fitted to the drive pulley, which prevents torsional vibrations from the The engine control module (ECM) can switch the voltage regulator between two voltages to optimize the charging of the battery. The low voltage regulator setting is 13.6 volts and the high voltage regulator setting is 15.3 volts, measured with the generator at 25°C The ECM determines the voltage setting of the voltage regulator. The high voltage setting is always selected by the ECM once the vehicle There are three different time periods selected by the ECM which is dependent upon the vehicle conditions when the vehicle is started: The longest time period is selected if the ECM determines that the vehicle has been 'soaking' for sufficient time to allow the engine At the end of these time periods the voltage is always set to the low voltage setting to prevent the battery from being overcharged. The time periods are variable depending upon the temperature and the battery voltage. The target voltage of the battery varies between 14 There are three wires connected to the generator from the ECM by connector EN16: EN49-1; RG wire, is the voltage regulator request setting from the ECM to the generator. If the voltage request signal wire (EN 49-1) is open circuit or short to battery positive, the generator will charge the battery at a setting of A fault in the wiring or the connections from the generator to the ECM, will cause a fault code to be generated and stored in the ECM and The charge warning indicator lamp is operated by the IC after receiving a signal from the ECM through the control area network (CAN). With the ignition switch in the RUN position the charge warning indicator lamp will be displayed in the IC when the generator is not If a fault is detected with the generator a fault code will be generated and stored by the ECM. The charge warning indicator lamp will also Units should be repaired as an assembly and not dismantled for repair. Generator - 2.0L NA V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA V6 - AJ27 (414-02 Generator and Regulator, Removal and Installation). Vehicles with 2.0L and 2.2L diesel engine The diesel charging system differs from that used in petrol-engined variants in that it incorporates a 'smartcharge' function. This function is capable of supplying infinitely variable voltages to the battery, depending on the temperature and on the current The system continuously monitors the battery voltage and temperature (via the ambient air temperature sensor), and uses a map of both to Another feature of this system is that it uses a 'wake-up' and 'sleep' strategy, initiated by the ignition switch position and ECM, rather than |