PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2015, B2016, B2020, B2021, B2025, B2026, B2027, B2030, B2031, B2032, B2035, B2040, B2041, B2043, B2047

DTC Code DTC Name
B2015 Open in Right Side Upper MOS
B2016 Open in Right Side Lower MOS
B2020 Open in Left Side Upper MOS
B2021 Open in Left Side Lower MOS
B2025 Right Side Current Detection Circuit Malfunction Hi
B2026 Right Side Current Detection Circuit Malfunction Lo
B2027 Right Side Over-Current Malfunction
B2030 Left Side Current Detection Circuit Malfunction Hi
B2031 Left Side Current Detection Circuit Malfunction Lo
B2032 Left Side Over-Current Malfunction
B2035 Power Supply Relay Adherence Malfunction
B2040 EEPROM Malfunction
B2041 Fall of Raised Voltage
B2043 Fall of B+ Voltage
B2047 Seat Belt Control ECU Inner Circuit Malfunction

DESCRIPTION

The DTCs above are output during seat belt control ECU self-diagnosis.

When DTC B2015 or B2016 is stored, DTCs B2026 and B2027 are not stored.

When DTC B2020 or B2021 is stored, DTCs B2031 and B2032 are not stored.

DTC Code DTC Detection Condition Trouble Area
B2015 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2016 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2020 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2021 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2025 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2026 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2027 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2030 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2031 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2032 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2035 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2040 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2041 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2043 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU
B2047 While the initial check is running and the ignition switch is ON, the seat belt control ECU detects an internal malfunction for 1 second. Seat belt control ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTCs B2015 to B2047 are not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE SEAT BELT CONTROL ECU Click here

    C

    REPLACE SEAT BELT CONTROL ECU Click here

    A

    USE SIMULATION METHOD TO CHECK Click here