When do you replace the parking light fuse?
The problem arises when the parking light fuse blows and you replace the fuse. As soon as you turn on the parking lights or headlights, the parking light fuse blows again.
What causes the fuse to blow on the parking light?
If there’s a short to ground on the grey wire from the BCM to either the instrument cluster or the heater control, it will blow the parking light fuse! That will cause you to waste a lot of time and money replacing the relay and BCM when those aren’t the problem.
Why does my F30 keep blowing a fuse?
Most likely cause of blown F30 fuses to me seems to be a bad “Trailer tow relay parking lamp” in the battery junction box. I’ll yank that an see if I keep popping fuses. Any smart electrician guys have any other bright ideas given this wiring diagram? Problem solved once and for all.
How does the BCM work on a parking light?
In a vehicle with a BCM, the multifunction switch doesn’t actually switch power to the parking lights. Instead, the multifunction switch acts as a signal input to the BCM. The BCM provides ground to the control coil circuit of the parking light relay.
The problem arises when the parking light fuse blows and you replace the fuse. As soon as you turn on the parking lights or headlights, the parking light fuse blows again.
If there’s a short to ground on the grey wire from the BCM to either the instrument cluster or the heater control, it will blow the parking light fuse! That will cause you to waste a lot of time and money replacing the relay and BCM when those aren’t the problem.
In a vehicle with a BCM, the multifunction switch doesn’t actually switch power to the parking lights. Instead, the multifunction switch acts as a signal input to the BCM. The BCM provides ground to the control coil circuit of the parking light relay.
Can a blown fuse be switched back on?
The breakers reset and can be “switched back on”–so there is no need to replace anything. Much of the time, it’s technically inaccurate to refer to a “blown fuse,” so in this article, we’ll offer you some new concepts and vocabulary to describe your various electrical concerns.
What should I do if I Blew my Fuse?
The Fix: Make sure the faulty device is unplugged and there is no damage to the outlet. First, test the circuit. Then check for any damage on or around the electrical panel. If you see any damage, call an electrician before doing anything else with it. If there is none, flip the breaker switch back to its operating position.
How can I troubleshoot a breaker trip on a light fixture?
Troubleshoot efficiently by checking the switch first. Remove the switch plate (2 screws) and check the switch with a flashlight. Inspect for any wiring touching the side of the box or other wires. Fix as needed, then check the light fixture and inspect the wiring for issues.
Why does my light switch flip when I Turn on the breaker?
An old light switch can crack and become unusable and cause the breaker the flip. The wires can become brittle and cause a circuit overload or a short. Turn off the breaker when checking the light switch. Replace the light switch if found to be faulty. 3. Wire Connections Are Loose