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.
Click here
OK:
DTC U1000 is not output.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
| NG | | REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
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Components
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Hybrid system precautions
Take care when handling the hybrid system, as it is a high voltage
system
(about 650 V at maximum) as well as contains parts that become extremely
hot when the hybrid system is operating. Obey the warning labels attached to
the vehicle.
System components
The illustration is an example for e
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