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SE-32 < COMPONENT DIAGNOSIS > POWER SUPPLY AND GROUND CIRCUIT Is the inspection result normal? YES >> GO TO 2. NO >> Check the following. • Repair or replace harness between driver seat control unit and fuse block (J/B). 2. CHECK GROUND CIRCUIT Check continuity between the driver seat control unit harness connector and ground. Is the inspection result normal? YES >> Driver seat control unit power supply and ground circuit are OK. NO >> Repair or replace harness between driver seat control unit and ground. DRIVER SEAT CONTROL UNIT : Special Repair Requirement INFOID:0000000001694218 1. PERFORM ADDITIONAL SERVICE Perform additional service when removing battery negative terminal. >> Refer to SE-7, "ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : . PASSENGER SEAT CONTROL UNIT PASSENGER SEAT CONTROL UNIT : Diagnosis Procedure INFOID:0000000001694219 NOTE: 1. CHECK POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Check voltage between passenger seat control unit harness connector and ground. Is the inspection result normal? YES >> GO TO 2. NO >> Check the following. • Repair or replace harness between passenger seat control unit and fuse block (J/B). 2. CHECK GROUND CIRCUIT Terminals Voltage (V) (Approx.) (+) (–) Driver seat control unit connector Terminal B504 33 Ground Battery voltage 40 Driver seat control unit connector Terminal Ground Continuity B503 32 Existed B504 48 Terminals Voltage (V) (Approx.) (+) (–) Passenger seat control unit con- nector Terminal B553 33 Ground Battery voltage 40 |