B2031

PRE-COLLISION: PRE-COLLISION SYSTEM: B2015,B2016,B2020,B2021,B2025-B2027,B2030-B2032,B2035,B2040,B2041,B2043,B2047: Open in Right Side Upper MOS

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-Circuit Malfunction
B2030 - Left Side Current Detection Circuit Malfunction Hi
B2031 - Left Side Current Detection Circuit Malfunction Lo
B2032 - Left Side Over-Circuit 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 the seat belt control ECU's self diagnosis.





INSPECTION PROCEDURE

NOTICE:
When the seat belt control ECU is replaced with a new one, Initialization must be performed Pre-Collision System.

PROCEDURE

1. CHECK DTC

(a) Clear the DTCs stored in memory Pre-Collision System.

(b) Turn the engine switch off.

(c) Turn the engine switch on (IG).

(d) Check for the DTCs Pre-Collision System.

OK:

NO DTC is output.

NG -- REPLACE SEAT BELT CONTROL ECU

OK -- USE SIMULATION METHOD TO CHECK