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1991 Cadillac Deville Trouble Codes

24681 Views 8 Replies 5 Participants Last post by  mcgrath4, 
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Hello! I'm back again since my caddy insists on being bad. I've got some codes that popped up. one was teh EE E48 code which i understand is the EGR system(i know i need a new EGR valve). The other is an F32, F48, and F31 code. If anyone can help with identifying the F codes it would be fantastic. Unfortunately all the code sites i've found do not list F codes.
Any help would be appreciated.
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AMENCADDY said:
the F is for BCM codes. the display starts with one E for the PCM history, then E.E. for current. Same sequence follows for BCM codes starting with one F for history and F.F. for current ones. F48 = refrigerant system problem. F31= Display panels to BCM problem. F32 = PCM-BCM data problem (this one has to be a HARD code, and not intermittant)
On the code E48, you can clean the EGR valve, and the EGR stack tubes under your throttle to get rid of that. EGR valves rarely need replacing.
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Thank you.

In regards to the F32 code when you said HARD code does that mean that since it went off that the PCM-BCM is a major issue right now?
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