Code 43*2 SRS Warning Light Drive Circuit ( Warning Light Off)

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

The SDU monitors the SRS warning light circuit and outputs this code when the circuit has been open for five seconds because of a 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 SDU

^ Defective combination meter

Diagnostic Chart:

Troubleshooting Diagram

Caution

1. 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.

2. To unlock the SDU connector, put a flat tip screwdriver on the lock spring (metallic portion) of the lock lever as shown, and press it horizontally toward the inside of the unit. In this case, do not force the lock lever up. Do not put the flat tip screwdriver in the clearance between the lock lever and lock spring (metallic portion).