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DLN-44 < DTC/CIRCUIT DIAGNOSIS > [TRANSFER: TY21C] C1209 MODE SW 3. Check the continuity between 4WD control unit harness connector and ground. Is the inspection result normal? YES >> GO TO 3. NO >> Repair or replace damaged parts. 3. CHECK 4WD CONTROL SWITCH GROUND CIRCUIT Check the continuity between 4WD mode switch harness connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> Repair or replace damaged parts. 4. CHECK 4WD CONTROL UNIT OUTPUT SIGNAL 1. Connect 4WD control unit harness connector. 2. Turn the ignition switch ON. CAUTION: Never start the engine. 3. Check the voltage between 4WD mode switch harness connector and ground. Is the inspection result normal? YES >> GO TO 5. NO >> Repair or replace damaged parts. 5. CHECK TERMINALS AND HARNESS CONNECTORS 4WD control unit 4WD mode switch Continuity Connector Terminal Connector Terminal B5 5 M8 3 Not existed 6 Existed 8 Not existed 12 3 Existed 6 Not existed 8 Not existed 14 3 Not existed 6 Not existed 8 Existed 4WD control unit — Continuity Connector Terminal B5 5 Ground Not existed 12 14 4WD mode switch — Continuity Connector Terminal M8 2 Ground Existed 4WD mode switch — Voltage Connector Terminal M8 3 Ground Battery voltage 6 8 |