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Jun 14, 2018, 4:25 AM

Post #1 of 5 (463 views)
Head lights Sign In

Hello everyone. This is a 2006 Chevy optra, the driver side head light is not working, I check the obvious first like disconnected wires,burnt fuse and I don't see any.thi car has two fuse boxes one close to the battery and one inside driver side parrallell to the outside since there any other fuse box except this two.i don't know the cause of this. There is no power and ground at the connector.please help.
God bless you.

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 14, 2018, 4:44 AM

Post #2 of 5 (454 views)
Re: Head lights Sign In

Just how are you checking for power and ground and if fuses are good? I mean what type of tool?
Basics: Swap bulbs with the working one and one that doesn't. Don't touch glass of light bulbs - use dry clean cloth or paper and do use bulb grease if going there anyway.
Yes - several designs each bulb is on it's own some share one side to the other just know that. Basics first I know you said you checked but need to know if you are checking and how if getting valid info from what. I don't think you need more than a known working test light and how to use it for this issue so far.

Just more: Check test lights you are adding grounds or power to work aside from what you are checking on something nearby that's harmless. It's too easy for the test to fail,


Ultimate Carjunky / Moderator
Discretesignals profile image

Jun 14, 2018, 5:16 AM

Post #3 of 5 (449 views)
Re: Head lights Sign In

Are the low and high beams on the driver's side both inop?

Do you have power at fuse EF27 10amp in the underhood fuse box with the head lamps on low beam?

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Jun 14, 2018, 6:18 PM

Post #4 of 5 (419 views)
Re: Head lights Sign In

Thank you for responding, the thing is I use powerprope when I check for battery voltage on the other side, there is gound and power but not on the driver side I checked all the fuses underhood, they're all fine. I couldn't find any clue that directs me to the root cause.

Double J
Veteran / Moderator
Double J profile image

Jun 14, 2018, 6:41 PM

Post #5 of 5 (415 views)
Re: Head lights Sign In

There is a TSB (bulletin) that may apply
Its Bulletin # #05-08-45-003E

Check the Wiring harness for - Chafed/Shorted wire at Transaxle Mount, Below Underhood Fuse Block and/or Left Wheelhouse

Due to the cause of this condition, and the positions of the wires in the wire harness, it is unlikely that more than one circuit will be affected by the condition.
One condition may be caused by one of the wires in the floor wiring harness being chafed, cut, shorted/melted, or damaged near the transmission mounts or underneath the underhood fuse block.

Another condition may be caused by one of the wires in the floor wiring harness being chafed, cut, shorted or damaged around the rear of the left side front wheelhouse splash shield (driver's side) near where the harness exits from the passenger compartment.

Get a copy of the bulletin if needed for images of locations

Trace the harness in those areas

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