Toyota CH-R Service Manual: CAN Communication Failure (Message Registry) (U1000)

Toyota CH-R Service Manual / Lighting (ext) / Lighting System / CAN Communication Failure (Message Registry) (U1000)

DESCRIPTION

The headlight ECU sub-assembly LH stores this DTC if it detects an internal malfunction related to the CAN communication system.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

U1000

CAN Communication Failure (Message Registry)

CAN communication failure

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.

CLEAR DTC

(a) Clear the DTCs.

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Body Electrical > HL AutoLeveling > Clear DTCs
NEXT

2.

CHECK FOR DTC

(a) Turn the ignition switch to ON.

(b) Check for DTCs.

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Body Electrical > HL AutoLeveling > 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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