What does the 30 amp mini fuse in the dist. block.....

JCD · Mar 18, 2005

under the hood control? 1996 XJ I keep blowing the 30 amp mini fuse in the
power distribution block under the hood. I suspect that it controls something
having to do with the ignition? My jeep is stuck on the side of the road right
now.

Thanks,
Jason D.

jeepsx3 · Mar 18, 2005

Isn't there a fuse diagram on the cover of the block?

JCD · Mar 18, 2005

nope, for the mini fuses in the middle of the block it just has what size fuse goes in which slot. It doesn't say what circuit it is protecting. It is blowing the fuse whenever I turn the key on. Any ideas what components to check first?

Thanks,
Jason D.

Yucca-Man · Mar 18, 2005

There are two 30 amp fuses listed; I can't recall the position but there was a mid-year redesign anyway.

I'd say you're blowing the one I have listed as #2 -Engine Control. Fuel Pump, Gen. Field Injectors, Engine Controller, Ignition Coil Auto rans Controller, Oxygen Sensor.

The other one is listed as #10, ABS System.

Look for bad grounds or shorts somewhere...unfortunately practically anywhere in the fuel or ignition system...

JCD · Mar 18, 2005

Thanks, Yucca-man, I appreciate it. Now I have some direction to go.

Jason D.

jeepsx3 · Mar 18, 2005

The mini 30 in my 96 box blew when my downstream o2 wire got grounded to the exhaust. It is for the ASD (auto shutdown) and it woudn't run till I disconnected the harness to the o2 sensor. Runs now but sets codes 131, 135 and 138 I think.

JCD · Mar 19, 2005

It turned out to be my O2 sensor as well, but the front one.

Jason D.

Yucca-Man · Mar 19, 2005

Glad you found it.

jeepsx3 · Mar 19, 2005

Good deal.

What does the 30 amp mini fuse in the dist. block.....

JCD

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jeepsx3

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JCD

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Yucca-Man

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JCD

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