B2055

PRE-COLLISION: PRE-COLLISION SYSTEM: B2055: Radar Sensor Malfunction

DTC B2055 - Radar Sensor Malfunction

DESCRIPTION

This DTC is output when one of the following occurs: 1) an error in communication with the millimeter wave radar sensor assembly is detected, or 2) vehicle information sent from the radar sensor assembly is abnormal. If output, perform initialization on the radar sensor assembly to register the vehicle information to the radar sensor assembly.






INSPECTION PROCEDURE
NOTE:
When the seat belt control ECU is replaced with a new one, INITIALIZATION must be performed Pre-Collision System.

PROCEDURE

1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)
(a) Clear the DTCs Pre-Collision System.
(b) Recheck for DTCs.
OK:
CAN communication system DTC is not output.
NG -- GO TO CAN COMMUNICATION SYSTEM
OK -- Continue to next step.
2. CHECK DTC OUTPUT (DYNAMIC RADAR CRUISE CONTROL SYSTEM)
(a) Turn the cruise control main switch on.
(b) Drive the vehicle at a speed of 25 mph (40 km/h) or more.
(c) Check DTC for dynamic radar cruise control system Dynamic Radar Cruise Control System.
OK:
DTC P1570 is not output.
NG -- GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM
OK -- Continue to next step.
3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
(a) Clear the DTCs Pre-Collision System.
(b) Recheck for DTCs.
OK:
DTC B2055 is not output.
NG -- REPLACE SEAT BELT CONTROL ECU
OK -- USE SIMULATION METHOD TO CHECK