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Fig. 143: Identifying 2WD-4WD Transfer Shift Actuator Circuit Diagram (4WD HIGH 1. After the 4WD HIGH to 2WD switch is complete, inspect the 4WD detection switch and limit switch. Standard resistance 4WD HIGH TO 2WD TESTER CONNECTION AND SPECIFIED CONDITION If there is a malfunction, replace the transfer shift actuator (see REMOVAL ). If the 6. INSPECT A.D.D. ACTUATOR HINT: After inspecting the 2WD-4WD transfer shift actuator, inspect the A.D.D. actuator. a. Check the harness and connector (ECU - A.D.D. actuator). 1. Disconnect the A25 and A26 ECU connectors. 2. Disconnect the G1 actuator connector. 3. Measure the resistance according to the value(s) in the table below. Tester Connection Condition Specified Condition 3 (CDL) - 7 (GND) After 4WD HIGH to 2WD 100 kohms or higher 4 (TL1) - 7 (GND) After 4WD HIGH to 2WD Below 1 ohms 5 (TL3) - 7 (GND) After 4WD HIGH to 2WD 100 kohms or higher
2009 Toyota Tundra 2009 TRANSMISSION JF1A Transfer - Tundra
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