1987 FC NA headlights wont turn on
#27
Moderator
iTrader: (1)
If you are confident that you grounded the White/Blue wire earlier in an attempt to get voltage to show up on the R/G wire then your relay is in need of replacement. If the grounding was proper then the voltage should have tranferred from the Red to the Red/Green wire internally, which is something you accomplished externally by jumpering the two wires together. You might want to try to ground the White/Blue wire again and if the lights don't turn on then search for or place an ad in the used parts section for a replacement.
The role of the headlight switch as it relates to turning on the headlights is it places a ground on the White/Blue wire that is necessary to the process of getting the lights to come on. Once the ground is sent it is received by the Headlight Relay at the White/Blue wire.
The role of the headlight switch as it relates to turning on the headlights is it places a ground on the White/Blue wire that is necessary to the process of getting the lights to come on. Once the ground is sent it is received by the Headlight Relay at the White/Blue wire.
Last edited by satch; 03-20-13 at 06:30 PM.
#29
Moderator
iTrader: (1)
Whether the problem is caused by corrosion or not I cannot tell, but it is a bit irrelevant for it either works or it doesn't.
If the relay has constant voltage on both Red wires, and there is a ground on the White/Blue wire then there should be voltage on the R/G wire. If yours does not do this then it is in need of replacement.
If the relay has constant voltage on both Red wires, and there is a ground on the White/Blue wire then there should be voltage on the R/G wire. If yours does not do this then it is in need of replacement.
Last edited by satch; 03-20-13 at 06:40 PM.
Thread
Thread Starter
Forum
Replies
Last Post
The1Sun
1st Generation Specific (1979-1985)
0
09-07-15 10:21 PM