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1997 Cadillac Deville lots of trouble codes

Tiny
ROME4U2
  • MEMBER
  • 1997 CADILLAC DEVILLE
  • 122,000 MILES
I've had these codes AFTER/post installation of 2 new oxygen sensors. Since I have cleared all codes numerous times, I'm beginning to wonder if there is possibly some other issue with my electrical system, computer chip and/or the wiring of the sensors? Anyway, here's a few recent (within past 2 weeks) OBDII code readouts:

PC1139C
PC0603H
IP1552H
AC1340H
AC1341H
NO SDM CODES
NO TCS CODES
NO RSS CODES
PZ1558H
PZ2470H
PZ2471H
PZ2472H
PZ2473H
PZ2550H
PZ2152H
NO TRC CODES
RF2560H
NO CCP CODES


Six miles later (after clearing the codes w/hand held tool)

Same as above less the AC history codes

Now, the readout is in my question above. Any ideas?

Thank you VERY much - I appreciate your time.
-Carol
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Thursday, April 19th, 2012 AT 2:06 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
In fail to believe that all tese issues happened at one time.

I would verify all powers and grounds. If all is ok, you need to pin out the pcm for a possible internal failure.

Roy
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Thursday, April 19th, 2012 AT 2:10 AM

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