Airbag System

Code No.43 SRS warning light drive circuit system (when warning light is OFF)

[Explanation]

The SRS-ECU monitors the SRS warning light drive circuit and outputs this code when the circuit has been open for five seconds because of break in the light or the harness, loose connection, etc.

When the normal state is restored for a continuous period of 5±0.2 seconds, code No. 43 is automatically erased, and the SRS warning light goes out.

Probable cause of trouble

Defective harness, connector

Defective bulb

Defective SRS-ECU

Defective combination meter

Caution

After the ignition switch has been placed at the LOCK position and the negative (-) terminal of the battery has been disconnected, wait for more than 60 seconds before starting work. Wind a tape around the disconnected (-) terminal for insulation.