Lexus NX: Precaution

PRECAUTION

PRECAUTION WHEN REPLACING HEADLIGHT ECU SUB-ASSEMBLY LH

(a) If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

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 Parts Location

PARTS LOCATION ILLUSTRATION *1 HEADLIGHT ECU SUB-ASSEMBLY LH *2 HEADLIGHT ECU SUB-ASSEMBLY RH *3 HEADLIGHT ASSEMBLY LH - HEADLIGHT UNIT ASSEMBLY LH *4 HEADLIGHT ASSEMBLY RH - HEADL

 System Diagram

SYSTEM DIAGRAM

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the AFS (front-lighting adaptive system). *: Use the Techstream PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP

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 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: Body Electrical / (desired system) / Trouble Codes. Body Electrical > Master Switch > Trouble Codes B

 Seat Belt Buckle Switch (LH) (B1656)

DESCRIPTION The seat belt buckle switch LH circuit consists of the airbag ECU assembly and front seat inner belt assembly LH. DTC B1656 is stored when a malfunction is detected in the seat belt buckle switch LH circuit. DTC No. Detection Item DTC Detection Condition Trouble Area B1656

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