Dtc B2056 Axial Gap Of Radar Sensor

Restraints. Lexus Is250, Is220D. Gse20 Ale20
Pre-Crash Safety. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC OUTPUT (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)

DTC B2056 Axial Gap of Radar Sensor


DESCRIPTION


DTC No.
DTC Detection Condition
Trouble Area
B2056
Radar sensor assembly malfunction is detected or initialization settings are faulty
  1. Millimeter wave radar sensor assembly (axial adjustment)
  2. Seat belt control ECU

INSPECTION PROCEDURE

NOTICE:
When the seat belt control ECU is replaced with a new one, INITIALIZATION must be performed (Click here).
1.CHECK DTC OUTPUT (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

  1. Delete the DTC (Click here).

  1. Recheck for DTC.

    OK:
    DTC P1572 is not output.


NG
GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM
OK


2.CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)

  1. Delete the DTC (Click here).

  1. Recheck for DTC.

    OK:
    DTC B2056 is not output.


NG
REPLACE SEAT BELT CONTROL ECU
OK

USE SIMULATION METHOD TO CHECK