How do I disable seat belt interlock system on my '74 Celica ST? - Toyota Nation Forum : Toyota Car and Truck Forums

verlaryder · 06-19-2010, 10:45 PM

All 1974 Toyota passenger cars sold in the USA have a seat belt interlock system that won't let the driver start the engine unless he/she is sitting in his seat with the seat belt buckled up.

What can I do to disable this system so that I can start the motor even if not sitting in the seat with the seat belt buckled up? Besides being a nuisance, the system drains the car's battery if I don't drive the car for several days. Thanks.

JIve13 · 06-19-2010, 10:51 PM

should be a set of wires running from the buckle. cut them. not sure if you will need to leave them disconnected or will need to splice the ends together.

***MR2Jedi*** · 06-19-2010, 11:40 PM

Not sure, but some models have a connector under the seat that you can just unclip.
Worth a look see.