B2056

PRE-COLLISION: PRE-COLLISION SYSTEM: B2056: Axial Gap of Radar Sensor

DTC B2056 - Axial Gap of Radar Sensor

DESCRIPTION

This DTC is stored when the beam axis of the millimeter wave radar sensor is not aligned with the direction the vehicle is traveling. If the beam axis adjustment is not performed after installing a new millimeter wave radar sensor, the pre-collision system DTC B2056 is output, and when the vehicle speed is 40 km/h (25 mph) or more, the dynamic radar cruise control system DTC P1572 is output.






INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)
(a) Using the Techstream, enter the following menus: Powertrain / Radar Cruise / Trouble Code.
(b) Clear the DTC Dynamic Radar Cruise Control System.
(c) Perform the following to make sure the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.

(1) Drive the vehicle at a speed of 40 km/h (25 mph) or more.
(2) Turn the cruise control main switch on to set the vehicle-to-vehicle distance control mode to the standby state.
(d) Check for DTCs Dynamic Radar Cruise Control System.
OK:
DTC P1572 is not output.
NG -- GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM
OK -- Continue to next step.
2. CHECK DTC (PRE-COLLISION SYSTEM)
(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Code.
(b) Clear the DTCs Pre-Collision System.
(c) Check for DTCs Pre-Collision System.
OK:
DTC B2056 is not output.
NG -- REPLACE SEAT BELT CONTROL ECU
OK -- USE SIMULATION METHOD TO CHECK