Accessories randomly comes on without key

2000 TOYOTA TARAGO
248,550 MILES • 2.4L • 4 CYL • FWD • AUTOMATIC
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JOHN BARBER2
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  • 1 POST
Accessories randomly comes on without key radio flatten battery. Have proven not radio, removed radio fuse and power to accessories cigarette lighter still on, also removed ignition switch cover and unplugged ignition switch accessories completely still accessories on.

This is intermittent, can park car having radio on at "traffic loud" switch off car and radio off as normal, later accessories comes on with radio, GPS phone charger etc. Waking people up if at night or can flatten battery if not noticed.
Appreciate any help,

Cheers, John and Joy
Jul 15, 2017 at 11:59 PM
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STRAILER
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Hello,

These is a accessory relay that sounds like it stuck on or sticking which would cause the problem you have described.

Here is a wiring diagram so you can see what Im talking about along with a guide to help you test it

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let us know what happens.

Cheers, Ken
Jul 17, 2017 at 1:24 PM