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rav4system has reported a post.

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Post: Check Engine Light/VSC & 4WD lights explained
Forum: 4.3 Mechanical
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Posted by: baws
Original Content:
Junebug I have been reading trying to figure out why my 04 rav4 sport 2.4l auto awd threw a CEL and the vsc/trac light came on Advance auto said there is a bank1 upstream bad 02 sensor. A brake failure although the abs light isnt on and that the battery had low voltage. I checked the batery terminal and loosened and tightened the fuel cap. I am thinking of pulling the fuses you have listed although mine is an 04. Where should I go next? reading the pdf of fixes seems mind boggling and confusing by how much it ranged unless those lights come on together every time which I assume they dont that the CEL is what comes on when there is a dtc.
 

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I don't know how to move this single post to the 4.2 area.
 

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It's fine, I'm leaving it.
 
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