When I use my left blinker in my 2000 Jeep CH, my 4-ways come on. Can anyone help?

Question

When I use my left blinker in my 2000 Jeep CH, my 4-ways come on. Can anyone help?

Answer 1

occasionally the filaments in a bulb will cross- over [short out inside the bulb] try replacing the left front bulb with one of the same type.

note an improper [wrong] bulb can produce the same effect..

good luck

Answer 2

there is probably something with the switch or it could be the wiring harness

Answer 3

Usual cause of this fault is an internal fault in the direction indicator multifunction switch.