48 Buick Roadmaster 70 series, Where do I find diagram for brake lights


Asked by Oct 29, 2015 at 12:41 PM about the 1947 Buick Roadmaster

Question type: Maintenance & Repair

I have a 48 Buick Road Master 70 series.  My brake lights aren't working,  I
have checked the bulbs, fuses and do not have a  wiring diagram to figure out
if it is the wiring or what?  Can you help?   Thank you

2 Answers


Here is a 50 it may help? https://www.google.com/search?q=wiring+diagram+for+a+1948+buick+roadmaster&biw=960&bih=455&tbm=isch&tbo=u&source=univ&sa=X&ved=0CBwQsARqFQoTCN7BzMrh6sgCFcJpPgodVg8BaA#imgrc=UXCE8r6Wic3j2M%3A

4 of 4 people found this helpful.

Even without a schematic you should be able to check ground connections and the over all condition of the wiring. On a car that old you would probably be in good shape to check and clean ALL of the connections. I would also take a look under the dash and locate the brake light switch and check the condition of that as well. Good luck hope you get them working again.

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