Electrical Relays

[skillit2]

1984 cj7. Turn signals start normally for about 10 seconds then get faster. Not really causing an issue doing this but curiously removed round relay from fuse box marked 552 (round on top left) and also removed rectangular 4.5a 12v directly underneath. Thought round 552 was turn signal relay and 4.5a was 4way flasher relay. However after removing both, 4way flashers and turn signals worked same as if I'd never removed the relays. I'm confused. Any helpful comments

 

[TSB8C]

You should have two round flasher units in the fuse box. Upper right (R2) is for the blinkers and upper left (R1) is for the 4-way flashers. Can't see how either are working with those removed. The "relay" underneath R1 (or "rectangular" device you mentioned) is actually a self-resetting fuse or circuit breaker in place of the normal fuse (marked "1" in the pic below). Now with R1 removed but R2 still in place, the turn signals would work but the flashers should not. So if flashers and turn signals are both working even with R1 removed, you have a bad bulb somewhere that is allowing the two circuits to be crossed. This can happen when a dual filament bulb has one filament break and it touches or "shorts" with the other filament in the bulb. Of course this can also happen if you have a shorted or crossed wire in a harness somewhere going to the bulb sockets as well.