Headlite Help
Thread Starter
Intermediate
Joined: Jun 2006
Posts: 49
Likes: 0
From: New Orleans LA.
Headlite Help
Headlites come on but will not go up, just changed the turn signal switch and no help...looked at the control box and it looks like someone has been in it, I notice when I plug and unplug the box,the contacts inside click. Ive only had the car a week and dont know any history...Thanks in advance for any help with this, Its a pain cranking those lites by hand.
Drifting
Joined: Feb 2005
Posts: 1,298
Likes: 21
From: east taunton ma
I had 1 headlight that wouldn't go up. I took apart the control box that is located by the passenger headlight and it had a lot of water damage so I bought a used one and put it in there. It fixed my headlight problem. Good luck.
Thread Starter
Intermediate
Joined: Jun 2006
Posts: 49
Likes: 0
From: New Orleans LA.
They never did go up, I just checked pin D in wires and it showed good ground. Everything on the turn switch works except lites to go up. Should I try another control box or is there another place to look...Thanks again for any info.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Record all your codes and then clear them. Then try to raise the headlights again and then pull your codes again and post them.
We can discuss earlier codes that did not show up later. Once you do this we can discuss diagnostics.
Do you know how to use a multimeter for resistance and voltage?
We can discuss earlier codes that did not show up later. Once you do this we can discuss diagnostics.
Do you know how to use a multimeter for resistance and voltage?
Le Mans Master
Joined: Jan 2004
Posts: 9,488
Likes: 1,743
From: Knoxville Tn
Do you know if the car has been modified to add HID lights?
If so it is fairly common for the lights to not come up. Try turning the switch off and on quickly and see if they work.
Also there is a rubber boot over the headlight motor, remove it and turn the **** on the end of the motor and see if they raise. This will check out the gear assy. for the lights. (I believe you turn it clockwise to raise them.
If so it is fairly common for the lights to not come up. Try turning the switch off and on quickly and see if they work.
Also there is a rubber boot over the headlight motor, remove it and turn the **** on the end of the motor and see if they raise. This will check out the gear assy. for the lights. (I believe you turn it clockwise to raise them.
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Thread Starter
Intermediate
Joined: Jun 2006
Posts: 49
Likes: 0
From: New Orleans LA.
Record all your codes and then clear them. Then try to raise the headlights again and then pull your codes again and post them.
We can discuss earlier codes that did not show up later. Once you do this we can discuss diagnostics.
Do you know how to use a multimeter for resistance and voltage?
We can discuss earlier codes that did not show up later. Once you do this we can discuss diagnostics.
Do you know how to use a multimeter for resistance and voltage?
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
That is a horn code so it says something is wrong with the circuit. We can work on that after the lights.
We now need to see if power is getting to the door motors.
You did not answer my question about multimeter use because you will need to use one for the diagnostics or get a friend to help.
I want to see if voltage is getting to the motors when you request the door to go open.
Unplug the connector for the driver side at the headlights. Find the Light Green and Dark Green wires. Put the positive voltmeter lead on the Light Green wire/pin and the negative on the Dark Green wire/pin. Then turn the headlights on and see if you get about 12 volts. This will be a 2 person job unless you extend your leads. You MUST make sure you have good contact on the pins/wires so you get a true reading of something or nothing.
Based on what you get there, you can do the same thing on the passenger side except substitute Light Blue and Dark Blue for the wire colors.
Let me know what you get.
We now need to see if power is getting to the door motors.
You did not answer my question about multimeter use because you will need to use one for the diagnostics or get a friend to help.
I want to see if voltage is getting to the motors when you request the door to go open.
Unplug the connector for the driver side at the headlights. Find the Light Green and Dark Green wires. Put the positive voltmeter lead on the Light Green wire/pin and the negative on the Dark Green wire/pin. Then turn the headlights on and see if you get about 12 volts. This will be a 2 person job unless you extend your leads. You MUST make sure you have good contact on the pins/wires so you get a true reading of something or nothing.
Based on what you get there, you can do the same thing on the passenger side except substitute Light Blue and Dark Blue for the wire colors.
Let me know what you get.
Thread Starter
Intermediate
Joined: Jun 2006
Posts: 49
Likes: 0
From: New Orleans LA.
That is a horn code so it says something is wrong with the circuit. We can work on that after the lights.
We now need to see if power is getting to the door motors.
You did not answer my question about multimeter use because you will need to use one for the diagnostics or get a friend to help.
I want to see if voltage is getting to the motors when you request the door to go open.
Unplug the connector for the driver side at the headlights. Find the Light Green and Dark Green wires. Put the positive voltmeter lead on the Light Green wire/pin and the negative on the Dark Green wire/pin. Then turn the headlights on and see if you get about 12 volts. This will be a 2 person job unless you extend your leads. You MUST make sure you have good contact on the pins/wires so you get a true reading of something or nothing.
Based on what you get there, you can do the same thing on the passenger side except substitute Light Blue and Dark Blue for the wire colors.
Let me know what you get.
We now need to see if power is getting to the door motors.
You did not answer my question about multimeter use because you will need to use one for the diagnostics or get a friend to help.
I want to see if voltage is getting to the motors when you request the door to go open.
Unplug the connector for the driver side at the headlights. Find the Light Green and Dark Green wires. Put the positive voltmeter lead on the Light Green wire/pin and the negative on the Dark Green wire/pin. Then turn the headlights on and see if you get about 12 volts. This will be a 2 person job unless you extend your leads. You MUST make sure you have good contact on the pins/wires so you get a true reading of something or nothing.
Based on what you get there, you can do the same thing on the passenger side except substitute Light Blue and Dark Blue for the wire colors.
Let me know what you get.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
The two problems are unrelated. You did prove that the motors and gears work which is great.
With that said, I would replace the control module.
Your problem with the horn is most likely the membrane in the steering wheel is stuck.
This is a very common issue and you might be able to remove it and get it freed or just replace it. Here is the schematic.
Here is a link to help, you might find more out there. REMOVE THE NEGATIVE BATTERY CABLE FIRST AND WAIT 3 MINUTES FIRST. That way it is SAFE to work around the airbag.
http://forums.corvetteforum.com/c5-g...post1586035480
Keep me posted and feel free to ask any questions. I like success stories. Mr.Sam
With that said, I would replace the control module.
Your problem with the horn is most likely the membrane in the steering wheel is stuck.
This is a very common issue and you might be able to remove it and get it freed or just replace it. Here is the schematic.
Here is a link to help, you might find more out there. REMOVE THE NEGATIVE BATTERY CABLE FIRST AND WAIT 3 MINUTES FIRST. That way it is SAFE to work around the airbag.
http://forums.corvetteforum.com/c5-g...post1586035480
Keep me posted and feel free to ask any questions. I like success stories. Mr.Sam
Thread Starter
Intermediate
Joined: Jun 2006
Posts: 49
Likes: 0
From: New Orleans LA.
The two problems are unrelated. You did prove that the motors and gears work which is great.
With that said, I would replace the control module.
Your problem with the horn is most likely the membrane in the steering wheel is stuck.
This is a very common issue and you might be able to remove it and get it freed or just replace it. Here is the schematic.
Here is a link to help, you might find more out there. REMOVE THE NEGATIVE BATTERY CABLE FIRST AND WAIT 3 MINUTES FIRST. That way it is SAFE to work around the airbag.
http://forums.corvetteforum.com/c5-g...post1586035480
Keep me posted and feel free to ask any questions. I like success stories. Mr.Sam
With that said, I would replace the control module.
Your problem with the horn is most likely the membrane in the steering wheel is stuck.
This is a very common issue and you might be able to remove it and get it freed or just replace it. Here is the schematic.
Here is a link to help, you might find more out there. REMOVE THE NEGATIVE BATTERY CABLE FIRST AND WAIT 3 MINUTES FIRST. That way it is SAFE to work around the airbag.
http://forums.corvetteforum.com/c5-g...post1586035480
Keep me posted and feel free to ask any questions. I like success stories. Mr.Sam
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
That is a code for the Right Door Control Module (RDCM). A common issue to throw random codes on the doors and seats. I would not worry about it unless you actually start having actual "failures" and then we can fix them.
The actual code is for the mirror. Horizontal position sensor fault. If it totally fails should only affect Memory settings and not motor function.
If you ever just want to discuss an issue just PM me with your phone number.
I'm retired and don't have to rush around putting out fires. Just drink beer and smoke cigars.
The actual code is for the mirror. Horizontal position sensor fault. If it totally fails should only affect Memory settings and not motor function.
If you ever just want to discuss an issue just PM me with your phone number.
I'm retired and don't have to rush around putting out fires. Just drink beer and smoke cigars.
Safety Car
Joined: Dec 2010
Posts: 3,938
Likes: 498
From: Fords, NJ
On a side note: Sam is a truely great and helpful guy, along with several others around here who go out of their way to help a fellow Vette Brother out !
Ask me how i know
Instructor
Joined: Mar 2011
Posts: 170
Likes: 1
From: Lafayette La
Before replacing the expensive control module look at the plastic tabs (bump stops) the scissor arms rest against when open and closed. If the tabs have indents in them from wear and tear over the years this will cause the lights to not raise when turned on. Sounds unbelievable but believe me this was my problem. And the best part is the tabs were only $2.89 a piece. More than likely it is the tabs the arms rest on in the down position that are worn out.