Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Height Sensor Initialization Incomplete (B2450)
DESCRIPTION
The No. 1 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 |
| No. 1 headlight ECU sub-assembly LH | AFS |
CAUTION / NOTICE / HINT
NOTICE:
-
If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.
Click here
.gif)
-
If the headlight assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.*
Click here
- When replacing the No. 1 headlight ECU sub-assembly LH, always replace it with a new one. If a No. 1 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.
-
When replacing the headlight assembly LH, always replace it with a new one. If a headlight 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.*
- *: for TMMC Made
PROCEDURE
| 1. | INITIALIZATION NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH |
(a) Perform initialization of the No. 1 headlight ECU sub-assembly LH.
Click here
|
.gif)
| 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 No. 1 headlight ECU sub-assembly LH stores DTC B2450 even though the ECU has been initialized, there may be a malfunction in the No. 1 headlight ECU sub-assembly LH.
| OK | .gif) | END (INITIALIZATION WAS NOT COMPLETED) |
| NG | | REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH |
Headlight LH Circuit (B2439,B243A)
DESCRIPTION The No. 1 headlight ECU sub-assembly LH and No. 1 headlight ECU sub-assembly RH internally boost the power supply voltage to ensure a constant supplied current for the lo/hi beam LED of th ...
Variation Code not Written (B2451)
DESCRIPTION The No. 1 headlight ECU sub-assembly LH stores this DTC if the vehicle specifications have not been stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Outpu ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Can Communication System: Suspension Control ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Suspension Control ECU Communication Stop Mode Either condition is met:
"Suspension Control (Air Suspension)" is not displayed on the CAN Bus Check screen of the Techstream.
Click here
Communication system DTCs (DTCs that start w ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Terminals Of Ecm
TERMINALS OF ECM HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistanc ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0174