Fuses blowing strange electrical problems with headlights and right turn signal
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Hello i just bought a 93 prelude S 2.2L engine 5 speed my first issue is my turn signals when i use the right signal the engine surges the turn signal indecator blinks and gets dim and eventually blows the fuse ive noticed also that when my air conditioner is on the right signal light blinks with the little green light on my ac button the left signal is fine it doesnt do anything weird my second issue is with my headlights the right headlight keeps blowing its fuse the high beam indecator is always on and when i try to turn it off the indecator just gets brighter i have replaced the turn signal switch and alternator and battery but nothing so far has resolved my issues can anyone tell me whats going on thank you
RepairPal Certified shops can diagnose and repair your 1993 Honda Prelude. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
You'll have to do some basic wiring circuit tests. You'll need a wiring diagram that will show you what wire controls what, and where it goes to. You'll need to check for short to power / short to ground situations. I suspect damage or corrosion somewhere. Without doing this circuit testing, you're really in the dark. The only other thing I could suggest is that you seek any signs of physical damage to the front of the vehicle; where a previous accident may have occurred, you may also find signs of wiring issues that remain.
Make sure ALL grounds on engine harness are clean and tight ( best way to verify is to remove and clean, then reinstall), and verify the ground straps from engine/valve cover, and transmission to body are good.
