Lexus ES: Height Sensor Initialization Incomplete (B2450)
DESCRIPTION
The headlight ECU sub-assembly LH stores this DTC if initialization has not been performed after it was replaced.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| B2450 | Height Sensor Initialization Incomplete |
| Headlight ECU sub-assembly LH | AFS |
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.
Click here
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- When replacing the headlight ECU sub-assembly LH, always replace it with a new one. If a headlight ECU sub-assembly LH which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
PROCEDURE
| 1. | INITIALIZATION HEADLIGHT ECU SUB-ASSEMBLY LH |
(a) Perform initialization of the headlight ECU sub-assembly LH.
Click here
|
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| 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 B2450 is not output.
HINT:
If the headlight ECU sub-assembly LH stores DTC B2450 even though the ECU has been initialized, there may be a malfunction in the headlight ECU sub-assembly LH.
| OK | .gif) | END (INITIALIZATION WAS NOT COMPLETED) |
| NG | | REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
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SEE MORE:
Replacement
REPLACEMENT
PROCEDURE
1. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH
Click here
2. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH
Click here
3. REMOVE NO. 1 ENGINE UNDER COVER
Click here
4. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY
Click here
5. DRAIN TRANSFER OIL
(a) Stop the
Components
COMPONENTS ILLUSTRATION *1 COWL SIDE TRIM BOARD LH *2 FRONT DOOR OPENING TRIM COVER LH *3 FRONT DOOR SCUFF PLATE LH *4 INSTRUMENT PANEL FINISH PANEL END LH *5 INSTRUMENT SIDE PANEL LH *6 LOWER INSTRUMENT PANEL *7 LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY
