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Access DTCs


BigCat83

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Hi, what is the fastest way to access the DTCs in my '97 Eldo? The "Service Engine Soon" light came on on my way home from work last night, so I must pull the code and check it out. Considering that it's the Service Engine light I'm assuming the problem is with the O2 sensors - correct assumption?

Thanks all,

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Hi, what is the fastest way to access the DTCs in my '97 Eldo? The "Service Engine Soon" light came on on my way home from work last night, so I must pull the code and check it out. Considering that it's the Service Engine light I'm assuming the problem is with the O2 sensors - correct assumption?

Thanks all,

Press and hold the OFF and WARMER buttons on your AC CONTROL. The dash will light up and do a segment check and then reel off codes. Be ready with a pencil and write them down. If you miss some thats ok, run it again.

The check engine light comes up for a lot of reasons not just O2 sensors. When you get your codes you can check to see what they are here: http://myweb.accessus.net/~090/dtcobd2.html

or you can post them and we can help with them, Mike

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Hi, what is the fastest way to access the DTCs in my '97 Eldo? The "Service Engine Soon" light came on on my way home from work last night, so I must pull the code and check it out. Considering that it's the Service Engine light I'm assuming the problem is with the O2 sensors - correct assumption?

Thanks all,

Press and hold the OFF and WARMER buttons on your AC CONTROL. The dash will light up and do a segment check and then reel off codes. Be ready with a pencil and write them down. If you miss some thats ok, run it again.

The check engine light comes up for a lot of reasons not just O2 sensors. When you get your codes you can check to see what they are here: http://myweb.accessus.net/~090/dtcobd2.html

or you can post them and we can help with them, Mike

Thanks, it was "Trans Fluid Reset". All's well at this point in time.

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