| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001G2C2 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 12/2021] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): B2456; Left Headlight ECU Variation Error; 2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021] | ||
|
DTC |
B2456 |
Left Headlight ECU Variation Error |
DESCRIPTION
This DTC is stored if the headlight ECU sub-assembly LH for another destination is installed.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
Note |
|---|---|---|---|---|---|
|
B2456 |
Left Headlight ECU Variation Error |
Detection condition:
Malfunction status:
Malfunction duration:
|
|
HL AutoLeveling |
- |
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)
-
w/ Smart Key System:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
-
for HV Model:
Before replacing the hybrid vehicle control ECU assembly, refer to Registration.
-
for Gasoline Model:
Before replacing the ECM, refer to Registration.
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 / Clear DTCs.
(e) Clear the DTCs.
Body Electrical > HL AutoLeveling > 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 / Trouble Codes.
(e) Check for DTCs.
Body Electrical > HL AutoLeveling > Trouble Codes
OK:
DTC B2456 is not output.
| OK |
|
| NG (for Gasoline Model) |
|
|
|
3. |
CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY |
(a) Check if the part number of the hybrid vehicle control ECU assembly installed to the vehicle is correct.
OK:
Part number is correct.
| NG |
|
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY
|
|
|
4. |
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
(a) Check if the part number of the main body ECU (multiplex network body ECU) installed to the vehicle is correct.
OK:
Part number is correct.
| OK |
|
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH
|
| NG |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
|
5. |
CHECK ECM |
(a) Check if the part number of the ECM installed to the vehicle is correct.
OK:
Part number is correct.
| OK |
|
| NG |
|
REPLACE ECM
|
|
|