LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Car won't start, electronics don't work!

Old 05-09-11, 10:10 AM
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tenchu
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Default Car won't start, electronics don't work!

I disconnected my battery over night to reset the ECU (pulled the wrong fuse and caught the airbag light), now the car won't start, it powers on, but wont even attempt to crank, heater/ac doesn't appear to be getting any power either. WTF?

And yes, I checked/replaced all the fuses. Apparently the fuse box diagram I copied off the net I was following backwards, hence pulling the wrong fuse, now I have everything back where its supposed to, and no dice.
Old 05-09-11, 10:21 AM
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deanshark
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Factory alarm maybe. Try locking and unlocking the drivers door a few times with the key, not the remote. I usually have to use my passenger door, Idk why.
Old 05-09-11, 10:31 AM
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tenchu
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Originally Posted by deanshark
Factory alarm maybe. Try locking and unlocking the drivers door a few times with the key, not the remote. I usually have to use my passenger door, Idk why.
I only have a key, not a remote? I tried the drivers door, but I guess I could try the passenger, lol.
Old 05-09-11, 10:33 AM
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PureDrifter
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check fuses in the engine bay and in the driver-side foot well. then check the fusible links.
Old 05-09-11, 10:37 AM
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tenchu
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That didn't work :/
Old 05-09-11, 10:39 AM
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tenchu
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Originally Posted by PureDrifter
check fuses in the engine bay and in the driver-side foot well. then check the fusible links.
All the fuses under the dash are good, I even replaced them all just for piece of mind. All the fuses and fusible links in the fuse box by the battery are good.

The car doesn't even attempt to do anything, no clicks, no nothing, when you turn the key to "START" but all the dash lights come on (as normal) when the key is in "ON"
Old 05-09-11, 12:25 PM
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tenchu
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Figured it out, took me forever, but it ended up being a 7.5A fuse on a row separate from the main block of fuses on the under-dash fuse box, I thought those were spare fuses (i'm used to how Honda's fuse boxes are setup, haha)

Can anyone give me an accurate fuse box diagram please? I have a feeling other fuses should go there, but i'm not sure what size, and for what
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