76 w114 power window fuse box troubleshoot

[huffandpuff]

in eng compartment passanger fire wall locatation theres 3 fuse boxes test light says only 2 fuses light up when touch each terminal the others don't light up on both sides getting no power to window switches any tips to troubleshoot replaced both relays in passanger side under glove box still no power at switches

[ejboyd5]

Most people consider capitalization and punctuation to be their friends.

[huffandpuff]

OK ALRIGHT OK

[Idle]

I have often found that removing the fuses and cleaning the fuse ends and the contacts in the fuse box will clear up a condition such as this.

Also check the fuses out of the fuse box. These old type fuses can sometimes fail to pass current even thought they are not broken or burned through.

I use a small file, known as an ignition file or points file, to clean the ends and the contacts. These are not as easy to find as they once were but they can be ordered by anyplace that sells auto parts.