| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001G2C8 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 12/2021] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): U1000; CAN Communication Failure (Message Registry); 2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021] | ||
|
DTC |
U1000 |
CAN Communication Failure (Message Registry) |
DESCRIPTION
The headlight ECU sub-assembly LH or headlight ECU sub-assembly RH stores this DTC if it detects an internal malfunction related to the CAN communication system.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
Note |
|---|---|---|---|---|---|
|
U1000 |
CAN Communication Failure (Message Registry) |
Detection condition:
Malfunction status:
Malfunction duration:
|
Headlight ECU sub-assembly LH |
HL AutoLeveling |
- |
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
Note |
|---|---|---|---|---|---|
|
U1000 |
CAN Communication Failure (Message Registry) |
Detection condition:
Malfunction status:
Malfunction duration:
|
Headlight ECU sub-assembly RH |
HL AutoLeveling (Sub) |
- |
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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![2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): INITIALIZATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL AutoLeveling or HL AutoLeveling (Sub) / Clear DTCs.
(e) Clear the DTCs.
Body Electrical > HL AutoLeveling > Clear DTCs
Body Electrical > HL AutoLeveling (Sub) > Clear DTCs
|
|
2. |
CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL AutoLeveling or HL AutoLeveling (Sub) / Trouble Codes.
(e) Check for DTCs.
Body Electrical > HL AutoLeveling > Trouble Codes
Body Electrical > HL AutoLeveling (Sub) > Trouble Codes
OK:
DTC U1000 is not output.
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (DTC output from headlight ECU sub-assembly LH) |
B |
|
NG (DTC output from headlight ECU sub-assembly RH) |
C |
| A |
|
| B |
|
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH
|
| C |
|
REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH
|
|
|