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P1813 4WD SHIFT SWITCH DLN-31 < DTC/CIRCUIT DIAGNOSIS > [TRANSFER: TX15B] C E F G H I J K L M A B DLN N O P OK or NG OK >> GO TO 5. NG >> GO TO 2. 2. CHECK 4WD SHIFT SWITCH POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. (Stay for at least 5 seconds.) 2. Disconnect 4WD shift switch harness connector. 3. Check voltage between 4WD shift switch harness connector ter- minal 1 and ground. 4. Turn ignition switch ON. (Do not start engine.) 5. Check voltage between 4WD shift switch harness connector ter- minal 1 and ground. OK or NG OK >> GO TO 3. NG >> 1. Check harness for short or open between 4WD shift switch harness connector terminal 1 and transfer shut off relay 2 harness connector E47 terminal 3 and 10A fuse (No. 26 located in the fuse and fusible link box). If any items are damaged, repair or replace damaged parts. 2. Perform trouble diagnosis for power supply circuit. Refer to 3. CHECK HARNESS BETWEEN 4WD SHIFT SWITCH AND TRANSFER CONTROL UNIT 1. Turn ignition switch OFF. (Stay for at least 5 seconds.) 2. Disconnect transfer control unit harness connector and the 4WD shift switch harness connector. Connector Terminal Condition Voltage (Ap- prox.) E142 14 - Ground 4WD shift switch: 2WD Battery voltage 4WD shift switch: 4H and 4LO 0V 15 - Ground 4WD shift switch: 4H Battery voltage 4WD shift switch: 2WD and 4LO 0V 16 - Ground 4WD shift switch: 4LO Battery voltage 4WD shift switch: 2WD and 4H 0V Connector Terminal Voltage (Approx.) M141 1 - Ground 0V SDIA2383E Connector Terminal Voltage (Approx.) M141 1 - Ground Battery voltage PDIA0210E |