H4 headlight upgrade problems
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Junior User
Joined: Mar 2014
Posts: 66
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From: Atoka, TN
H4 headlight upgrade problems
Hey, folks
Trying to do a headlight upgrade with a relay harness I got from Amazon. That may be the first problem, but it was "redesigned" with more robust relays, blah blah blah....
Anyway, my headlight switch is working fine. I unplugged the new harness, plugged in one of the old bulbs, works fine. Plug in the harness, nothing. I've checked my wiring - orange plug goes to old headlight plug, blue plugs go to the new lights, red to battery + side, and black to ground. Cleaned the ground area with a wire brush, no paint, rust or dirt there. Inline fuse not blown. All electrical connections cleaned with DeOxit. Relays (one is 4 pin, one is 5) are in their correct places.
All I can figure is that the relays are bad. I hear no click when turning on lights. Marker lights and clearance lights work fine. New bulbs tested and working plugged into old plug.
Tomorrow I plan to hook the black to the negative battery post just to eliminate a bad ground problem.
Am I leaving anything out? I sometimes don't see what's right in front of me...any help is greatly appreciated! Thanks!
Trying to do a headlight upgrade with a relay harness I got from Amazon. That may be the first problem, but it was "redesigned" with more robust relays, blah blah blah....
Anyway, my headlight switch is working fine. I unplugged the new harness, plugged in one of the old bulbs, works fine. Plug in the harness, nothing. I've checked my wiring - orange plug goes to old headlight plug, blue plugs go to the new lights, red to battery + side, and black to ground. Cleaned the ground area with a wire brush, no paint, rust or dirt there. Inline fuse not blown. All electrical connections cleaned with DeOxit. Relays (one is 4 pin, one is 5) are in their correct places.
All I can figure is that the relays are bad. I hear no click when turning on lights. Marker lights and clearance lights work fine. New bulbs tested and working plugged into old plug.
Tomorrow I plan to hook the black to the negative battery post just to eliminate a bad ground problem.
Am I leaving anything out? I sometimes don't see what's right in front of me...any help is greatly appreciated! Thanks!
Thread Starter
|
Junior User
Joined: Mar 2014
Posts: 66
Likes: 0
From: Atoka, TN
will I ever learn....
OK, self, be more thorough when diagnosing a problem. Don't run to FTE and bug people for answers when it was a bad crimp connection in the wire you had to extend.
Gee whiz. Sorry to waste y'all's time! I promise to be more methodical and thorough in the future!
Gee whiz. Sorry to waste y'all's time! I promise to be more methodical and thorough in the future!
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