DESCRIPTION
The No. 1 headlight ECU sub-assembly LH stores this DTC if it detects an internal malfunction related to the CAN communication system.
for Multiple Beam Headlight DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
---|---|---|---|---|
U1000 | CAN Communication Failure (Message Registry) |
| No. 1 headlight ECU sub-assembly LH | AFS |
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
---|---|---|---|---|
U1000 | CAN Communication Failure (Message Registry) |
| No. 1 headlight ECU sub-assembly LH | HL AutoLeveling |
CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. | CONFIRM MODEL |
(a) Choose the model to be inspected.
Result | Proceed to |
---|---|
for Multiple Beam Headlight | A |
for Single Beam Headlight | B |
B | ![]() | GO TO STEP 4 |
|
2. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
|
3. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Check for DTCs.
Body Electrical > AFS > Trouble CodesOK:
DTC U1000 is not output.
OK | ![]() | USE SIMULATION METHOD TO CHECK |
NG | ![]() | REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH |
4. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > HL AutoLeveling > Clear DTCs
|
5. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.
(e) Check for DTCs.
Body Electrical > HL AutoLeveling > Trouble CodesOK:
DTC U1000 is not output.
OK | ![]() | USE SIMULATION METHOD TO CHECK |
NG | ![]() | REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH |
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CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the lane control system.
*: Use the Techstream.
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