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
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1 1 1 1 1 Pin Number Circuit Function Circuit Color 4 Generator Charge Warning Indicator Lamp Output Signal to ECM Blue Engine Control Module (ECM) Electrical Connector (EN16, Harness Side) Pin Number Circuit Function Circuit Color 53 Voltage Request Output Signal to Generator Red/Green 65 PW M Input Signal from Generator Orange/Green 79 Generator Charge Warning Indicator Lamp Input Signal from Generator Blue PINPOINT TEST A : LOW INPUT ON THE VOLTAGE REGULATOR REQUEST SIGNAL WIRE FROM THE ECM (P1146) TEST CONDITIONS DETAILS/RESULTS/ACTIONS A1: CHECK THE VOLTAGE REGULATOR REQUEST SIGNAL WIRE FOR A SHORT TO GROUND Disconnect the ECM electrical connector EN16 and the generator electrical connector EN49. Is the resistance less than 10,000 ohms? REPAIR short to ground between the generator and the ECM. CLEAR the DTC. TEST the system for normal operation. No GO to A2 . . A2: CHECK THE VOLTAGE REGULATOR REQUEST SIGNAL WIRE FOR OPEN CIRCUIT Measure the resistance between electrical connector EN49-1 and the ECM electrical connector EN16-53. Is the resistance less than 5 ohms? REPAIR the circuit from the ECM to the generator. CLEAR the DTC. TEST the system for normal operation. No GO to A3 . . A3: CHECK THE OPERATION OF THE GENERATOR CHARGE WARNING INDICATOR LAMP Connect the ECM electrical connector EN16 and the generator electrical connector EN49. Does the generator charge warning indicator lamp illuminate within 30 seconds of the engine being started? INSTALL a new generator. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a 303-14A Electronic Engine Controls Section 303-14B Electronic Engine Controls . No GO to A4 . . A4: CHECK THE OPERATION OF THE GENERATOR CHARGE WARNING INDICATOR LAMP AFTER 15 MINUTES RUN the engine at idle for 15 minutes and then increase the engine speed to 1500 RPM for one minute with no Does the generator charge warning indicator lamp illuminate or is the DTC repeated? INSTALL a new generator. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a 303-14A Electronic Engine Controls Section 303-14B Electronic Engine Controls . No DIAGNOSE the ECM. For additional information, refer to Section 303-14A Electronic Engine Controls Section 303-14B Electronic Engine Controls . PINPOINT TEST B : GENERATOR OVERCHARGING (P1244) TEST CONDITIONS DETAILS/RESULTS/ACTIONS B1: CHECK THE VOLTAGE REGULATOR REQUEST SIGNAL WIRE FOR A SHORT TO BATTERY POSITIVE Disconnect the ECM electrical connector EN16 and the generator electrical connector EN49. |