Lexus NX: Initialization has not been Performed (B2450)

DESCRIPTION

The vehicle height must be initialized for the headlight ECU sub-assembly LH to perform auto leveling control.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B2450

Initialization has not been Performed

  • Power switch on (IG)
  • ECU initialization incomplete
  • -

Headlight ECU sub-assembly LH

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

PROCEDURE

1.

INITIALIZATION HEADLIGHT ECU SUB-ASSEMBLY LH

(a) Perform initialization of the headlight ECU sub-assembly LH.

Click here

NEXT

2.

CHECK FOR DTC

(a) Turn the power switch on (IG).

(b) Check for DTCs.

Click here

Body Electrical > AFS > Trouble Codes

OK:

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

END (INITIALIZATION WAS NOT COMPLETED)

NG

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH

READ NEXT:

 Height Control Sensor Data Out of Range When Initializing (B2452)

DESCRIPTION The headlight ECU sub-assembly LH stores this DTC if the value from the rear height control sensor sub-assembly LH is out of range when performing initialization of the headlight ECU sub-a

 Automatic High Beam Main Switch

InspectionINSPECTION PROCEDURE 1. INSPECT COMBINATION SWITCH ASSEMBLY (AUTOMATIC HIGH BEAM MAIN SWITCH) (a) Remove the combination switch assembly. Click here (b) Inspect the automatic high beam ma

 Automatic High Beam System

SEE MORE:

 Disassembly

DISASSEMBLY PROCEDURE 1. PRECAUTION NOTICE: Be sure to read Precaution thoroughly before servicing. Click here Do not reuse parts which have reduced fastening ability due to thread damage. When installing components, make sure that the wire harness is not pinched or pulled. Do not use sol

 Removal

REMOVAL PROCEDURE 1. PRECAUTION Click here 2. REMOVE SERVICE PLUG GRIP Click here 3. DRAIN COOLANT (for Inverter Coolant) Click here 4. DISCONNECT WIRE HARNESS (a) Disconnect the 4 wire harness clamps from the inverter reserve tank assembly and inverter with converter assembly.

© 2016-2025 Copyright www.lexunx.com