QuestionQUESTION: I have a 1997 Cadillac Deville that has several warnings going on. First is the Anti Theft System car may not restart. Then I have the traction control light and the parking brake lights on. The codes that I got off the car are PZM U1255, B2750, IPC U1255, and ACM U1016. Where do I start?
ANSWER: I need to know if these codes are CURRENT or HISTORY codes. Run the codes again and as each code displays it will display history or current.
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QUESTION: These are all current codes. I have cleared all of the codes and these are the only ones remaining.
ANSWER: After each code displays there will be the letter C or H I need to know which codes have a C and which codes have an H.
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QUESTION: These are ALL CURRENT as I replied before. I didn't write down the history codes.
AnswerPZM U1255 = class 2 initilization error which is a loss of communication between all the modules in the electronics system.
B2750 = general loss of serial communication.
IPC U1255 = los of communication in the instrument panel.
ACM U1016 loss of serial communication in the AC system.
One of the numerous control modules is faulty and or NOT installed.
What on the car does NOT work properly ?
