Dougie8174

Codes, need help figuring out what they mean and how to fix the problems.

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1997 Cadillac Eldorado

PCM: P1611C, P1652C

IPC: B2711C, B1210C

SDM: B1155C, B1159C, B1160C

MMM: B2150

Theses are the codes that are showing up when I use the on-board diagnostic system, using the passenger temp control and the off button on the climate control unit. 

Any help would be greatly appreciated. 

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Look here for GM obd 1 codes:

http://gmtuners.com/OBD1_DTC.htm

 

DUH!  you have a 97 so its OBD 2 so look here:

https://www.engine-codes.com/make/cadillac

or

http://obdii.pro/en/code/P1611

Edited by sonjaab

93 DeVille-13 Chevy Impala

72 GTO - 77 Triumph Bonneville

84 Z-28

Syracuse NY

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Digging a little deeper.....coverage gets a little spotty prior to 1998. 

PCM

p1611....loss of CVRTD data.

p1652...RSS module issue. 

Neither of these will turn on the SES light. 

 

SDM

B1155...SDM calibration mis-match.

B1159...loss of data...no key data received.

B1160...loss of data...no VIN data received.

 

I don't have the '97 IPC codes. I would suggest clearing all the codes first....see what if any come back. These are kind of a odd list of codes to see.  

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to clear code thru the climate control center I found this:

 

caddy pcm clear procedure.jpg


93 DeVille-13 Chevy Impala

72 GTO - 77 Triumph Bonneville

84 Z-28

Syracuse NY

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