reverse lights turn on when ign. on.

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hek1620
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Car: '89 240sx

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what can i check? where is the sensor or whatever for the reverse lights? as soon as i put the key in the on position or turn the car on, the reverse lights are on. thanks.


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Ni2s4s0aSnX
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How do you know, you can't see the back of the car while you are in it.

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DirkLance
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someone else could have told him.he could see the reflection in another car.he could have had a friend start the car with him watching from behind.

smartass.

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hek1620
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dude, the car is on and i get out of it. it doesn't have to be in gear to be on. then i walk to the back and i could see the lights from there. is there like a cable that runs to the shifter or something?

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hek1620
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bump. i feel like a d!ck driving forward with my rev. lights on.

bryanmenard
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Are you an automatic or a manual? It's a little different setup for the different transmissions.

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hek1620
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manual. now just on of them is on. i think the other one burnt out.

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MinisterofDOOM
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I'd imagine there's a problem with the gearshift position sensor...

But since I'm no 240 guru, I have no idea exactly what that entails.

bryanmenard
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I'm not terribly familiar with the setup on the manual, but the concept is similar.

The reverse light runs off of the gear position sensor. Think of the sensor as a momentary, normally open switch. By default, the circuit is open, retarding power.

When the car is in reverse, the switch is actuated, closing the circuit. The switch is stuck in the closed position...completing the circuit and causing the reverse lights to go on.

This is being said just from an electrical standpoint. I don't know the specific setup of the 5-speed, but the concept is like i said above.

You have to find out why the circuit is closed.


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