Lexus NX: Seat Heater System

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 Precaution

PRECAUTION FOR OPERATION OF ELECTRICAL ITEMS RESTRICTED NOTICE: If the auxiliary battery voltage is low, the seat heater system may not operate. When "High Power Consumption / Partial Limit On AC/H

 Parts Location

PARTS LOCATION ILLUSTRATION *A w/ Rear Seat Heater - - *1 AIR CONDITIONING CONTROL ASSEMBLY *2 SEAT HEATER SWITCH (for Driver Side) *3 SEAT HEATER SWITCH (for Front Passenger

 System Diagram

SYSTEM DIAGRAM for Front: for Rear (w/ Rear Seat Heater):

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 Inspection

INSPECTION PROCEDURE 1. INSPECT SIDE TURN SIGNAL LIGHT ASSEMBLY LH (a) Apply auxiliary battery voltage to the connector and check the light illumination condition. OK: Condition Specified Condition Auxiliary battery positive (+) → Terminal 2 Auxiliary battery negative (-) → Terminal

 How To Proceed With Troubleshooting

PROCEDURE 1. CHECK TIRE AND WHEEL SYSTEM DIAGNOSIS OF IRREGULAR TIRE WEAR GO TO STEP 11 DIAGNOSIS OF TIRE VIBRATION 2. TIGHTEN WHEEL NUTS NEXT 3. INSPECT TIRES Click here NG GO TO STEP 10 OK 4.

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