Blowing a fuse
Thread Starter
Cruising
Joined: Aug 2009
Posts: 13
Likes: 0
Blowing a fuse
Was checking the fuses for the rearview mirror and vanity lamps when I found
Fuse #2 - Monitored (inadvertent) Load Control (10 amp)
blown.
Replaced it and ......zzzzzzzzzzzap ....blew again. One more fuse, same thing.
Any ideas? This sounds like a hook it up to the stealership diagnostic machine situation, since I am not a good spark chaser. I hate to do that.
No codes showing up. Car runs like a champ. 2003 Z06 with 20K miles.
Fuse #2 - Monitored (inadvertent) Load Control (10 amp)
blown.
Replaced it and ......zzzzzzzzzzzap ....blew again. One more fuse, same thing.
Any ideas? This sounds like a hook it up to the stealership diagnostic machine situation, since I am not a good spark chaser. I hate to do that.
No codes showing up. Car runs like a champ. 2003 Z06 with 20K miles.
Tech Contributor
Joined: Jan 2007
Posts: 19,341
Likes: 1,121
From: Dyer, IN
No dealership analysis machine is going to figure this out. This is no different than tripping a circuit breaker in your home. You keep unplugging appliances on the circuit until it stops tripping.
The loads on this circuit are:
underhood light
L&R mirror vanity lights
Instrument panel compartment lights
BCM
I'd start from the top, since the underhood light connector is most susceptible to corrosion, and unplug it first. I would consider the BCM shorting a remote chance at best(unless it got wet). Keep unplugging/removing lights until it stops blowing the fuse.
Tech Contributor
Joined: Jan 2007
Posts: 19,341
Likes: 1,121
From: Dyer, IN
Thread Starter
Cruising
Joined: Aug 2009
Posts: 13
Likes: 0
Benjamin Franklin's definition of insanity was "repeated action with an expected different outcome".....
Kinda like.....what do you call an accordian player with a pager?
An Optimist.
Last edited by Warpy; Aug 21, 2009 at 04:55 PM.
Thread Starter
Cruising
Joined: Aug 2009
Posts: 13
Likes: 0
Ah, yes. Eh, dry as a bone in that area. I'll do a double double check. Thanks!
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Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
You typically pull the knee bolster to install a CLB and pull a few fuses and swap out harness under the steering column to keep the pin energized so it does not lock the steering wheel.
Thread Starter
Cruising
Joined: Aug 2009
Posts: 13
Likes: 0
By process of elimination, I'm down to the BCM being the culprit. Pulled bulbs one by one, disconnected the rearview mirror........still blowing fuses.
All other work is clean. Don't see any shorted out exposed wires.
BCM
Searching for alternatives for a replacement or fix.
All other work is clean. Don't see any shorted out exposed wires.
BCM
Searching for alternatives for a replacement or fix.
Tech Contributor
Joined: Jan 2007
Posts: 19,341
Likes: 1,121
From: Dyer, IN
By process of elimination, I'm down to the BCM being the culprit. Pulled bulbs one by one, disconnected the rearview mirror........still blowing fuses.
All other work is clean. Don't see any shorted out exposed wires.
BCM
Searching for alternatives for a replacement or fix.
All other work is clean. Don't see any shorted out exposed wires.
BCM
Searching for alternatives for a replacement or fix.
Thread Starter
Cruising
Joined: Aug 2009
Posts: 13
Likes: 0
Did you unplug the underhood light..not just the bulb? With the battery disconnected, I would unplug the BCM. If all the bulbs in the circuit have been removed, you should read an open for resistance relative to ground on the load side of the fuse. If you have a short to ground, you need to figure out where the short is in the wiring.
Okay, back into the garage.
