63/C2 Headlights won't work
Thread Starter
Racer
Joined: Jun 2007
Posts: 281
Likes: 1
From: Springfield MO
63/C2 Headlights won't work
The story;
My headlights were acting up, so I installed a new wiring harness for the front lights. Put everything back together and they worked just fine.
Then my tail lights were acting up so I decided to replace the rear wiring harness, then I thought while I am there I will get the dash harness also. So after getting these two installed everything works, I mean everything BUT my headlights.
The only thing that is not new when it comes to the headlights is the switch itself and the hi/low dimmer on the floor.
Can you test the floor switch?
Can you test the dash switch?
What else could it be?
Greg
My headlights were acting up, so I installed a new wiring harness for the front lights. Put everything back together and they worked just fine.
Then my tail lights were acting up so I decided to replace the rear wiring harness, then I thought while I am there I will get the dash harness also. So after getting these two installed everything works, I mean everything BUT my headlights.
The only thing that is not new when it comes to the headlights is the switch itself and the hi/low dimmer on the floor.
Can you test the floor switch?
Can you test the dash switch?
What else could it be?
Greg
Le Mans Master
Joined: Feb 2008
Posts: 5,215
Likes: 447
From: NJ Hockey beer league
Did you also install new headlight extension harnesses or did you just replace the main front harness?? Check the connection at the back of the headlight switch, it is possible to remove the connector and test the lights with a jumper wire.
Pilot Dan
Pilot Dan
Last edited by Pilot Dan; Apr 13, 2011 at 04:39 PM.
Thread Starter
Racer
Joined: Jun 2007
Posts: 281
Likes: 1
From: Springfield MO
Both, even have new light bulbs.
Thread Starter
Racer
Joined: Jun 2007
Posts: 281
Likes: 1
From: Springfield MO
Le Mans Master
Joined: Nov 2000
Posts: 7,246
Likes: 21
From: Going too fast over the hill. Iowa
Since the headlamps worked when you changed the engine bay harness, the problem should be where you last made changes to the circuit that supplies the lamps. Assuming that the new main dash harness has good (new) wiring, it's connection points are the headlamp switch, the dimmer switch, and the LH bulkhead connector in the engine bay - where it is possible to crush or break a connector when plugging in the engine harness to the back of the fuse box.
As stated above, you can pull the headlamp switch connector to supply 12 volts to the light blue wire to the high beam switch to see if the dash switch is the problem or at the other end of the wire - on the high beam switch.
or
pull the plug on the high beam switch and apply 12 volts to the light green wire (highbeams and indicator) or the tan/white wire (low beams). If the lamps do not light with 12volts on these wires, the bulkhead connector is the suspect, or else the headlamp ground may be loose.
As stated above, you can pull the headlamp switch connector to supply 12 volts to the light blue wire to the high beam switch to see if the dash switch is the problem or at the other end of the wire - on the high beam switch.
or
pull the plug on the high beam switch and apply 12 volts to the light green wire (highbeams and indicator) or the tan/white wire (low beams). If the lamps do not light with 12volts on these wires, the bulkhead connector is the suspect, or else the headlamp ground may be loose.
Thread Starter
Racer
Joined: Jun 2007
Posts: 281
Likes: 1
From: Springfield MO
Since the headlamps worked when you changed the engine bay harness, the problem should be where you last made changes to the circuit that supplies the lamps. Assuming that the new main dash harness has good (new) wiring, it's connection points are the headlamp switch, the dimmer switch, and the LH bulkhead connector in the engine bay - where it is possible to crush or break a connector when plugging in the engine harness to the back of the fuse box.
As stated above, you can pull the headlamp switch connector to supply 12 volts to the light blue wire to the high beam switch to see if the dash switch is the problem or at the other end of the wire - on the high beam switch.
or
pull the plug on the high beam switch and apply 12 volts to the light green wire (highbeams and indicator) or the tan/white wire (low beams). If the lamps do not light with 12volts on these wires, the bulkhead connector is the suspect, or else the headlamp ground may be loose.
As stated above, you can pull the headlamp switch connector to supply 12 volts to the light blue wire to the high beam switch to see if the dash switch is the problem or at the other end of the wire - on the high beam switch.
or
pull the plug on the high beam switch and apply 12 volts to the light green wire (highbeams and indicator) or the tan/white wire (low beams). If the lamps do not light with 12volts on these wires, the bulkhead connector is the suspect, or else the headlamp ground may be loose.
Greg
