Headlight motor question
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Joined: Mar 2006
Posts: 70
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Headlight motor question
Hello to all of the c4 brothers and sisters
hoping someone can help with my passenger side stuck headlight motor. Checked ground, contacts, fusible links, and found nothing out of the norm. The headlight motor stuck open a few time before going dead.
I have changed gears before , so i know what a spinning motor sounds like and its not the gears.
Its like there is no power getting to the motor as it make no noise at all.
Although i believe i've checked most of the common areas, am i missing are possible area of interest to check for a short or a missing ground?
I am almost tempted to connect the headlight motor direct to the battery to see if that sparks some movement.
Any suggestions will be greatly appreciated.
Thanks in advance.
hoping someone can help with my passenger side stuck headlight motor. Checked ground, contacts, fusible links, and found nothing out of the norm. The headlight motor stuck open a few time before going dead.
I have changed gears before , so i know what a spinning motor sounds like and its not the gears.
Its like there is no power getting to the motor as it make no noise at all.
Although i believe i've checked most of the common areas, am i missing are possible area of interest to check for a short or a missing ground?
I am almost tempted to connect the headlight motor direct to the battery to see if that sparks some movement.
Any suggestions will be greatly appreciated.
Thanks in advance.
Melting Slicks
Joined: May 2010
Posts: 2,082
Likes: 3
From: Conowingo Maryland
did you try to lower or raise it manually? If it moves manually I would disconnect the motor and put 12 volts to 1 term and another to the 2nd term and see what happens. one way the headlight should go up switch the wires and the headlight will go the oppsite direction
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,754
From: Charlotte NC
did you try to lower or raise it manually? If it moves manually I would disconnect the motor and put 12 volts to 1 term and another to the 2nd term and see what happens. one way the headlight should go up switch the wires and the headlight will go the oppsite direction
If the motor operates...then switch the way you had the wires connected and it should operate in the other direction.
The control unit in front of your drivers front tire controls the headlight motors.
DUB
Race Director
Joined: Aug 2007
Posts: 11,889
Likes: 8
From: Whitefish Falls Ontario
St. Jude Donor '08-'09
disconnect the motor and do an ohm check on the motor connector, if you get infinity you need a new motor. You could take the motor apart and check the brushes and commutator. If you get a ohm reading then you need to make sure you have the ground and 12v feeds to the module.. If the motor appears good, the ground is at the module and the 4 12v feeds are at the module, and the motor doesn't work, you would appear to need a new module.. (3 with the switch off, the 4th with switch on)
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Last edited by ccrazor; May 10, 2014 at 09:56 PM.
