Airbag System

Code No.42 IG1 (B) power supply circuit

[Explanation]

This code is output when the voltage between the IG1 (B) terminal and ground continues to be lower than a predetermined value for five seconds.

When the normal state is restored for a continuous period of 5±0.2 second, code No. 42 is automatically cleared, and the SRS warning light goes out.

Probable cause of trouble

Defective harness, connector

Defective SRS-ECU

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.