1989 Geo Metro headlights

ALANCATHY

MEMBER
1989 GEO METRO
4 CYL
2WD
MANUAL
10,000 MILES

I have A 1989 Geo Metro the headlights will no longer work, They will flash on when you pull back on the dimmer switch, The bulbs are good, the headlight switch is also good, The 3 wires that go to the headlight bulbs are all hot, Even with the switch off, I thought the center wire was the ground, When I ran A ground wire to the center wire they came on even with the switch off, Is there any relays on this? All fuse's are good
could the dimmer switch be bad? & If it is how can I test it.
Please help.
Alan

5 Replies

ALANCATHY

MEMBER
20 POSTS

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Friday, September 26th, 2008 AT 3:16 PM

KHLOW2008

MECHANIC
41,815 POSTS

Hi alancathy,

Sorry for the delay in answering your question and thank you for the donation.

If you unplug headlight sockets, Only 1 wire should be hot, White/Blue for Left and White/Red for Right.

The other 2 wires are connected to the dimmer switch and when in operations, they are grounded to complete the circuit. If the headllights are not working with power available to the bulb, the switch should be faulty unless the connection is broken between headlight and switch.

At switch test for power supply to Red and Red/White, if power is available, there is no problem with the wire connections.

Was this

answer

helpful?

Yes

No

+1

Saturday, September 27th, 2008 AT 8:38 AM

ALANCATHY

MEMBER
20 POSTS

Thank you for all your help on my 89 Geo headlights
not working. You were right it was the connection where thr dimmer switch connect to thr light switch
it was burned out.
Thanks
Alan

Was this

answer

helpful?

Yes

No

Thursday, October 2nd, 2008 AT 2:45 PM

KHLOW2008

MECHANIC
41,815 POSTS

Thank you for the input.

Was this

answer

helpful?

Yes

No

Saturday, October 4th, 2008 AT 7:51 AM

MONCONSERV

MEMBER
1 POST

I have a similar problem. My low beams don't work. At the dimmer switch I have no power at the red/white wire, I do have power at red wire. Does that mean a broken wire or is the light switch broken.

Thanks for a reply!