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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OK:
DTC U1000 is not output.
| OK | | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
Turn Signal Switch Circuit
Headlight Dimmer Switch Circuit
Daytime Running Light Relay Circuit
Components
Lost Communication With Multi-axis Acceleration Sensor Module Missing Message (U012587,U012687,U012987,U013187,U015587,U029387)