Fuse #32 keeps blowing?

Hi,

Wow, that fuse powers a million things. (Pic 1 below). Does it blow as soon as you install the new fuse or does the key need to be turned on? Also, since it was hot, chances are the AC was on. Do me a favor. Remove the compressor relay and see if the fuse still fails.

Let me know.

Joe

See pic below.

Hi,

We can skip the relay since it doesn't fail until the key is in the start position. Just to confirm, the fuse fails when the key is turned to the start position, correct?

If the fuse fails after you release the key, we need to start disconnecting one thing at a time that the fuse powers. If it fails as soon as it is in the start position, it will likely be related to the starter circuit.

As far as the auxiliary junction box, see pic below for the location. It's on the driver's side front.

Let me know. Sorry for more questions, but I'm trying to narrow things down.

Take care,

joe

See pic below.

Hi,

It appears to be the relay. Isn't it interesting how they hide things? Ugh!

Do me a favor. Remove the relays in the CJB and see if it still fails. The relays are what actuate several things related to the fuse.

I have a question. My manual is showing two fuse boxes. One is the central junction box and the other is identified as passenger compartment fuse panel.

If you look at pic 2 below, that is the passenger compartment fuse box. If you have that, remove the relay that I circled first. Pic 3 is what I'm finding.

Let me know.

Joe

See pic below.

Hi,

Actually, the fuse supplies power to the relay. Switch that relay with a different one having the same part number. See if that makes a difference. See pic 1 below.

Joe

See pic below.

Hi guys. I've been vibrating in my seat waiting to learn the solution, but I see you've been wasting a lot of fuses. Please allow me to add my trick that will solve that. Use a light bulb in place of that fuse. All that will happen is when the short is present and the circuit is powered up, the bulb will be full, normal brightness. It will get hot so be careful where it's laid, and it will limit current to a safe value. My drawings show using a common 3157 brake light bulb. That will allow up to one amp to flow. Once the short is removed, the bulb will get dim or go out and the circuit will resume trying to work. If the bulb limits current too much, you can use a head lamp bulb instead. That will allow up to five or six amps to flow.

While this works great for fuses, I'm posting the procedure for bypassing a relay instead. I see a lot of mention of that. By bypassing the relay instead of the fuse, you usually can power the circuit without needing to turn on the ignition switch or do anything needed for that relay to turn on. I made these drawings over-simplified, but that's easier than trying to describe what to do. You do have to install a good fuse.

Joe can elaborate on where to find the items I listed, and which relay terminals to use if yours look different than those in the drawings. You can do this just as easily at the fuse socket too if you prefer. I hope this will help you guys figure this out.

Hi,

Yes, if you unplug the components associated with the fuse, it should prevent it from failing. If it does fail with the things disconnected, then we have a short to ground at some point causing the fuse to fail.

Once you disconnect things, reconnect one at a time to determine which component is causing things to fail.

Let us know,

Joe

Hi,

As far as locations, the schematics don't provide that information. Is there something specific you need help finding?

Let me know.

Joe

Hi,

I attached a pic of the PCM below. Before you disconnect the module, disconnect the battery negative cable. Also, disconnect the battery before reconnecting the module.

Let me know.

Joe