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04 cadillac cts v
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5,585 Posts
Discussion Starter #1
I popped some fuse or somthing when I was playing around..... and now my power steering assist doesnt work (not a big deal) and my traction control, abs and brake lights are on:confused:

I checked the owners manual and it does not tell me which fuse or relay is associated with these

I also replaced the ecbm fuse in the front so that was the closest thing i could think of that would have to do with these.


Please anyone with info would be appreciated....I dont want to take it to the dealer because they will charge me 100 bucks to change a damn fuse :mad:
 

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04 cadillac cts v
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5,585 Posts
Discussion Starter #3
I know that there's another EBCM fuse in the left rear fuse block under the rear seat... I''d check that first...
thankyou and I will look there again
ok i talked to erw3ild and he has been helping me but i wasnt sure if anyone knew exacty which circut corrilated with my problem

and I didnt want to keep bugging him so i tried here
 

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CTS
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337 Posts
Hi Luvmy, If you are checking your fuses with a test light,you should be aware that some circuits back feed with a open fuse.This means that if you check both sides (top of fuse) with a test light it will light.Then you will think the fuse is good.Remove the fuse and look at it.Also test light will be dimmer on one side.A ohms meter is the sure test,remove fuse and check with ohms meter. Tom
 

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'04 Escalade EXT
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352 Posts
Don't use a test light in newer vehicles(after 97 or something). The test light can put a little bit of a draw on the circuit, and cause the computer to get freaked out.
 

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Cadillac Technician
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11,051 Posts
d-dash,
That is true for data or sensor circuits, but on fuses it is okay to use a test light.

All the maxi-fuses in the underhood fuse block have power?
EBCM gets power through the IGN 3 Relay MICRO and the 10A EBCM (might be the one that says ABS?)
fuse in the left rear fuse block. Those circuits are both fed from the 60A L REAR Maxi fuses in the underhood fuse box. (there are two of them)

Also it gets power from the 50A EBCM maxi fuse in the underhood fuse block.
That circuit is actually for the pump motor I think.
 

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The only thing that puzzles me is you keep saying you lost power steering assist. If the module in control of the Magna steer failed you should have full assist at all times not reduced assist.
Maybe you are telling us that it doesn't increase effort at higher speeds and I misunderstood you to say you lost steering assist rather than saying your Magna-steer doesn't work properly??

Sorry I haven't been able to lead you to the problem yet.
We'll keep trying.
 

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See you in the funny papers
04 CTS-V, 05 STS, 07 SRX- All sold :(
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Being on '03 CTS, I'm not even sure he has Magnasteer. All '03s had rack + pinion, and the Luxury Sport models had Speedpro (If I remember correctly).
 

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04 cadillac cts v
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Discussion Starter #12
The only thing that puzzles me is you keep saying you lost power steering assist. If the module in control of the Magna steer failed you should have full assist at all times not reduced assist.
Maybe you are telling us that it doesn't increase effort at higher speeds and I misunderstood you to say you lost steering assist rather than saying your Magna-steer doesn't work properly??

Sorry I haven't been able to lead you to the problem yet.
We'll keep trying.
i think tony is right....it is not really hard to turn at all just not as easy as it was :confused:
 
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