LIGHTING SYSTEM, Diagnostic DTC:U1000
| DTC Code | DTC Name |
|---|---|
| U1000 | CAN Communication Failure (Message Registry) |
DESCRIPTION
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w/o AFS
These DTCs are stored when self-diagnosis of the headlight leveling ECU determines that the CAN communication system is malfunctioning.
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w/ AFS
These DTCs are stored when self-diagnosis of the headlight swivel ECU determines that the CAN communication system is malfunctioning.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1000 |
|
|
Tech Tips
After replacing the headlight leveling ECU*1 or headlight swivel ECU*2, initialization of the ECU is necessary Click here.
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*1: w/o AFS
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*2: w/ AFS
PROCEDURE
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CHECK FOR DTC
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Clear the DTCs Click here.
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Check for DTCs Click here.
OK DTC U1000 output does not occur. Result Result Proceed to OK A NG (w/o AFS, for LHD) B NG (w/o AFS, for RHD) C NG (w/ AFS) D
A 
USE SIMULATION METHOD TO CHECK Click here
B
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here
C
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here
D
REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here
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