Re: KPack
Posted by HH56 On 2022/10/1 15:57:45
Two completely separate circuits.
For the headlights, if they were working previously and nothing has broken inside the switch I would look for a pulled out wire at the headlight switch terminal or to the dimmer switch and grounds. Headlights are fed from the headlight sw terminal, goes to the dimmer switch common, and two wires out from there to the junction strip on the left fender and the left bulb. A short loom section connects the left strip to another junction strip on the right fender and to that bulb putting the filaments in parallel. Ground from the bulb sockets is brought back to the junction strip mounting screws on the inner fender. A separate wire from the high beam terminal on the dimmer switch runs back inside to the high beam indicator light. Dimmer switches have been known to stick or fail.
For the turn signals, if the fronts are the only issue look for an inline connector which I think is near the left junction strip. Individual bulb feeds from the turn signal switch come out of the round connector plug and via the loom are connected to the large filament at each front parking light bulb via a double on the left and then another single inline connector on the right. Corrosion on connectors could be an issue. Grounds to the parking light sockets are provided via a path of multiple pot metal pieces in the grill finally touching the fender sheetmetal and are always an issue with 51-4s. Since you do have the parking lights, not likely the issue this time with the signals but something to keep in mind.
Here are the terminal locations. The switch is 55-6 but aside from a different shaft the layout is the same as 51-4
Attach file:
headlight sw 51-6.jpg (63.41 KB)
For the headlights, if they were working previously and nothing has broken inside the switch I would look for a pulled out wire at the headlight switch terminal or to the dimmer switch and grounds. Headlights are fed from the headlight sw terminal, goes to the dimmer switch common, and two wires out from there to the junction strip on the left fender and the left bulb. A short loom section connects the left strip to another junction strip on the right fender and to that bulb putting the filaments in parallel. Ground from the bulb sockets is brought back to the junction strip mounting screws on the inner fender. A separate wire from the high beam terminal on the dimmer switch runs back inside to the high beam indicator light. Dimmer switches have been known to stick or fail.
For the turn signals, if the fronts are the only issue look for an inline connector which I think is near the left junction strip. Individual bulb feeds from the turn signal switch come out of the round connector plug and via the loom are connected to the large filament at each front parking light bulb via a double on the left and then another single inline connector on the right. Corrosion on connectors could be an issue. Grounds to the parking light sockets are provided via a path of multiple pot metal pieces in the grill finally touching the fender sheetmetal and are always an issue with 51-4s. Since you do have the parking lights, not likely the issue this time with the signals but something to keep in mind.
Here are the terminal locations. The switch is 55-6 but aside from a different shaft the layout is the same as 51-4
Attach file:
headlight sw 51-6.jpg (63.41 KB)
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