Lexus NX: CAN Communication Failure (Message Registry) (U1000)

Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Lighting System (for Triple Beam Headlight) / CAN Communication Failure (Message Registry) (U1000)

DESCRIPTION

This DTC is output when an internal malfunction of the CAN communication-related ECU is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U1000

CAN Communication Failure (Message Registry)

A headlight ECU sub-assembly LH CAN communication function malfunction is detected

Headlight ECU sub-assembly LH

CAUTION / NOTICE / HINT

NOTICE:

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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PROCEDURE

1.

CHECK FOR DTC

(a) Turn the power switch on (IG).

(b) Check for DTCs.

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Body Electrical > AFS > Trouble Codes

OK:

DTC U1000 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH

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