Cadillac Repair/codes?

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Question
QUESTION: hi i was just wondering what the following codes mean: PC0134 History  PC0113 History PC0135 Current PC0603 History PC1644 History TC0073 History RF2560 History, i couldn't find if this code was current or history : IP1552. thanks a lot please get back to me asap.

ANSWER: I need the YEAR & MODEL of the vehicle as well as the ENGINE SIZE.

---------- FOLLOW-UP ----------

QUESTION: 1996 Cadillac STS Seville , 4.6 Northstar V8. thank you

Answer
The only code we are interested in is the CURRENT codes.

PC0135 = Right oxygen sensor heater sensor malfunction.

You need to replace the oxygen sensor that is screwed into the exhaust manifold just in front of the firewall. If you need pictures, e-mail: onlineautohelp@msn.com

Once you replace the sensor you MUST clear all the codes from the computers using the climate control panel buttons ONLY.

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On hands professional expertise in all aspects of Cadillac diagnostics and repair mid 1970`s thru 2000 year vehicles. GM certified in electronic fuel injection, Automatic transmission, Heating and A/C, and onboard vehicle computer diagnostics.

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Held over 15 GM certifications prior to retirement in 1989.

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Prior to retirement held several ASE certifications, numerous Factory certifications.

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