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P1801, P1811 POWER SUPPLY CIRCUIT FOR TRANSFER CONTROL UNIT DLN-21 < COMPONENT DIAGNOSIS > [TRANSFER: TX15B] C E F G H I J K L M A B DLN N O P COMPONENT DIAGNOSIS P1801, P1811 POWER SUPPLY CIRCUIT FOR TRANSFER CONTROL Description INFOID:0000000005275413 The transfer control unit controls the transfer control device which controls shifts between 4H and 4LO and DTC Logic INFOID:0000000005275414 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON. 2. Perform self-diagnosis. Are DTC's “P1801 or P1811 detected? YES >> Perform diagnosis procedure. Refer to . NO >> Inspection End. Diagnosis Procedure INFOID:0000000005275415 Regarding Wiring Diagram information, refer to . 1. CHECK POWER SUPPLY 1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.) 2. Disconnect transfer control unit harness connector. 3. Check voltage between transfer control unit harness connector DTC CONSULT-III Diagnostic item is detected when... Reference [P1801] *INITIAL START* Due to removal of battery which cuts off [P1811] BATTERY VOLTAGE Power supply voltage for transfer control Connector Terminal Voltage (Approx.) M152 19 - Ground Battery voltage 25 - Ground 0V M153 40 - Ground Battery voltage 44 - Ground 0V 45 - Ground SDIA3360E |