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Hi I am new here and yes I searched and did not find what I was after. So here is the issue:
My friend has a 97 Ford Aerostar and the headlights do not turn off when the van is shut off. Now I tinhk it may be the switch or possibly a relay. Can anyone shed some light on this for me as I have never worked on one fo these vans before. Or even a place to start testing things would be very helpful.
Are you talking about daylight running lights ? If not the lights on most american made vehicle don't turn off with the engine only by the light switch.
Ok even after the headlight switch is off and the ignition turned off they stay on. They guy has to pull the fuse in the fuse panel to get them to shut off.
Also this is a Canadian vehicle not sure if that makes a huge difference or not. But he said the headlights and taillights stay on when he shuts off the van. I think it's the headlight switch personally but I just want to see if anyone else has had a similar issue and has some more input. I hate changing things for no reason.
Edit-- Also it drains the battery so it's not like it's a delayed shutoff thing and they are just impatient.
First of all I have no idea what prerequisites must be met for the module to shut down the lights however check the headlight switch first to make sure that its actually cutting the current from the headlights. If it is read on.
Out of the blue not knowing completely what the daylight module entails I would say if the switch is ok a relay is stuck. The only way for it to turn the lights on and off without a mechanical switch is a relay or a transistor but I highly doubt that.
When the coil current on the relay is removed a return spring is supposed to pull the contacts which conduct the current for the lights apart thereby disconnecting them from the battery.
Check the relay most likely inside the daylight module. Disconnect the unit and check for continuity between the relay contacts. If you read continuity when no current is being applied to the coil replace the relay.
If you don't get continuity al least the contacts are releasing reconnect the module and check for coil current if you get coil current when the engine is off whatever is driving the relay coil is the culprit. Which will require more specifics to diagnose.
Last edited by krankshaft; Aug 12, 2006 at 10:30 PM.
I had the same problem. It's easy to fix. If you unplug the daylight module and the lights go out. It's that. If not it maybe the timer, if it has the security lights or the switch.
They are real cheap at the wreakers, about 20-30$ for the daylight module or 10$ for the switch. From Ford about 60-90$ and the switch is absolete.
They are easy to replace also about 10 mins.
Fellow Canuck
I had the same problem. It's easy to fix. If you unplug the daylight module and the lights go out. It's that. If not it maybe the timer, if it has the security lights or the switch.
They are real cheap at the wreakers, about 20-30$ for the daylight module or 10$ for the switch. From Ford about 60-90$ and the switch is absolete.
They are easy to replace also about 10 mins.
Fellow Canuck
Awesome man thanks for the added info and when I get around to checking everything out for the guy I will update on what it was an how I fixed it.
Thanks again guys.
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