DTC    B2015    Open in Right Side Upper MOS

DTC    B2016    Open in Right Side Lower MOS

DTC    B2020    Open in Left Side Upper MOS

DTC    B2021    Open in Left Side Lower MOS

DTC    B2025    Right Side Current Detection Circuit Malfunction Hi

DTC    B2026    Right Side Current Detection Circuit Malfunction Lo

DTC    B2027    Right Side Over-Current Malfunction

DTC    B2030    Left Side Current Detection Circuit Malfunction Hi

DTC    B2031    Left Side Current Detection Circuit Malfunction Lo

DTC    B2032    Left Side Over-Current Malfunction

DTC    B2035    Power Supply Relay Adherence Malfunction

DTC    B2040    EEPROM Malfunction

DTC    B2041    Fall of Raised Voltage

DTC    B2043    Fall of B+ Voltage

DTC    B2047    Seat Belt Control ECU Inner Circuit Malfunction

for Preparation Click here


DESCRIPTION

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

HINT:
  1. When DTC B2015 or B2016 is detected, DTCs B2026 and B2027 will not be detected.
  2. When DTC B2020 or B2021 is detected, DTCs B2031 and B2032 will not be detected.


DTC No.
DTC Detection Condition
Trouble Area
B2015
B2016
B2020
B2021
B2025
B2026
B2027
B2030
B2031
B2032
B2035
B2040
B2041
B2043
B2047
While initial check is running and the power switch is on (IG), the seat belt control ECU detects an internal malfunction for 3 seconds.
Seat belt control ECU

INSPECTION PROCEDURE

1.CHECK DTC OUTPUT

  1. Using the intelligent tester, enter the following menus: Body / Pre-Crash / DTC.

  1. Clear the DTCs (Click here).

  1. Turn the power switch off.

  1. Turn the power switch on (IG).

  1. Recheck for DTCs.

    OK:
    DTCs are not output.



NG
REPLACE SEAT BELT CONTROL ECU (Click here)
OK

CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (Click here)