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Chevrolet Tracker 4x4: I have a 2003 chevy tracker. The headlights

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I have a 2003 chevy...
I have a 2003 chevy tracker. The headlights don`t work. All the other lights work. If you take the plug off the headlight bulb, all 3 legs are 12 volts without the light switch or ignition on. It has daytime running lights also that don`t work. I changed the relay and fuses, then thought it may be multi-function switch and changed it, but didn`t help. Any suggestions would be appreciated.
Submitted: 2 years ago.Category: Chevy
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Answered in 2 hours by:
5/17/2015
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Dave Nova
Dave Nova, Chevrolet Technician
Category: Chevy
Satisfied Customers: 19,452
Experience: ASE Master Certification. GM World Class Certification
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If you ground the red or red/white wire at the headlight connector, do the headlights operate?
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Customer reply replied 2 years ago
Give me a minute to check.
Customer reply replied 2 years ago
If you ground the red/white both will come on real bright.If you ground red it will blow a fuse.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Which fuse does it blow?
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Customer reply replied 2 years ago
the 15 amp in box for left headlight under hood. It has 1 for left and 1 for right headlight.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Remove both headlight bulbs and ground the red wire. Does the fuse still blow?
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Customer reply replied 2 years ago
No. I tried both sides and it didn`t blow either fuse.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Okay install one headlight bulb at a time and try grounding the wire.
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Customer reply replied 2 years ago
If you put the drivers side bulb in and ground the red wire it didn`t blow fuse. It was real bright. If you grounded blue/white wire blew fuse.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
What about the other bulb?
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Customer reply replied 2 years ago
On the left side it is ok if you ground red wire or red/white wire. If you ground other wire, which is white/red it blew fuse.
Both wires when grounded that blew fuses are marked ground on back of plug.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
The white/red and white/blue wires both supply power to the headlights and should not be grounded.
If you install bulb in right side and ground the red or red/white does the fuse blow?
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Customer reply replied 2 years ago
The last post I meant to say right side.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Did you try both bulbs, or just one bulb in both sides? If you just tried one bulb, try the other and see if the fuse blows when grounding the red or red/white wires.
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Customer reply replied 2 years ago
I had different bulbs. On Drivers side it didn`t blow with one bulb if you grounded red or white/blue. On passenger side with one bulb if you grounded red or white/red it didn`t blow.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
If you ground Red wire on drivers side, did fuse blow?
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Customer reply replied 2 years ago
No
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
But with both bulbs in place if you ground the red wire, the fuse blows?
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Customer reply replied 2 years ago
yes
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Does this fuse also blow if you turn on the High beam headlight at the switch?
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Customer reply replied 2 years ago
It will not light anything with light switch turned on.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Does the headlamp relay click when turning the headlight switch on?
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Customer reply replied 2 years ago
I don`t here it click when I turn the switch when I get down under dash and turn switch on. The relay is under dash at left side?
Customer reply replied 2 years ago
I didn`t have the owners manual to know which relay is the drl relay and which is headlight relay. There was 3 or 4 relays at firewall and 2 or 3 at front of box under dash.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
The relay is under the dash on the drivers side,
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Customer reply replied 2 years ago
yea, I had the switch on and turned the switch on and off and did not hear it click.
Customer reply replied 2 years ago
well. Dave, I have got to get to bed. Do you work tomorrow?
Customer reply replied 2 years ago
hey Dave, I will be back on about 2:00 today.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Do you know if the daytime running light diode is in place and functional?
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Customer reply replied 2 years ago
No. Where is it? What does it look like?
Customer reply replied 2 years ago
well at the fuse box under dash there are the 2 relays that look like the picture of 15 & 16. Then there is a relay about straight across from 16 at the back of the box. Then there is another relay about 2" above it.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Should be the one above it. Check for voltage on the Pink/White wire at this relay. Should have voltage with the headlight switch on. Let me know.
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Customer reply replied 2 years ago
The pink/white had power with switch on and off. Also with headlight switch on and off. Power all time.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
What about Pink/Black? Does this wire show voltage? Test with headlight switch on and off.
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Customer reply replied 2 years ago
The pink/black didn`t have power with or without switch on. It has two more wires. A solid black that had no power. And a Yellow that had power all time.
Chevy Mechanic: Dave Nova, Chevrolet Technician replied 2 years ago
Okay try grounding the pink/black and see if relay clicks on and turns on headlights. Let me know.
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