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04 Cadillac CTS "Limp mode"


STSJohn

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Ok, well, I havent been on this page for a while now but,, anyway last night on the way home from work my car (04 cts 3.6) entered "limp home mode" and of course the SES light came on. Does anybody have an knowledge with this? first time this has ever happen to me and to think its about a month outof warranty! any idea how much this is gonna take out my piggy bank?

Thank you in advance

2004 Cadillac CTS 3.6L VVT Light platinum 39K miles

~Vogue VTXi Package - Corsa Exhaust - K & N Cold air intake - Blacked out tints

2004 Cadillac Escalade 6.0L all-whell drive Pewter 42k miles

~22" Tis 07 Rims - E&G Chrome Vertyical billet Grill - Limo tints - Tv's in the Visor and headrests

1990 Mustang GT Painted Cadillac Diamond White - 604 Rwhp

Family Cars:

2004 Cadillac XLR (Mom)

2005 Cadillac STS V8(Dad)

2000 Eldorado ETC (Brother)

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No, I am not sure without more info. Hopefully a sensor went bad or just needs to be reconnected. Please let us know what the dealer or mechanic finds.

Bruce

2016 Cadillac ATS-V gray/black

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Pull the OBD II codes from a CTS from the HVAC controls and post them here. Here's how:

http://www.caddyinfo.com/readingcodes.html

That will very likely tell what triggered the limp-home mode.

CTS-V_LateralGs_6-2018_tiny.jpg
-- Click Here for CaddyInfo page on "How To" Read Your OBD Codes
-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data
-- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC
Yes, I was Jims_97_ETC before I changed cars.

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The 2003 CTS had access to onboard diagnostics via the HVAC, but the 04+ do not. He'll have to run a scan tool to get codes I think.

Bruce

2016 Cadillac ATS-V gray/black

Follow me on: Twitter Instagram Youtube

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