QuestionQUESTION: Could you tell me what the error codes e-31, e-52, e-91, f-49, 7.0?
Thanking you,
Jonathan
ANSWER: What MODEL Cadillac ?
If it is a Deville or Brougham:
E31 = Shorted MAP (Manifold Absolute Pressure sensor.
E-52 = Battery was disconnected in the past.
E-91 = Neutral starter safety switch failure.
F-49 = High temp clutch circuit in the AC compressor clutch.
7.0 = This is NOT a code. It is the beginning of another set of tests that you can do.
Are ANY of the codes displaying as EE codes ?.
Redisplay your codes again and when you see 7.0
Simultaneously push and hold the OFF and HI buttons until you see E.0.0 and release the buttons.
Simultaneously push and hold the OFF and LO buttons until you see F.0.0 and release the buttons.
Turn OFF ignition.
Wait 30 seconds and then redisplay your codes again and see which ones redisplay and if any display as EE codes.
---------- FOLLOW-UP ----------
QUESTION: it is a 1991 cadillac deville, Yes, EE F-49..
Thanks you very much
AnswerOK so all the E codes are gone and you only have the F49 code.
Redisplay your codes again and when you see .7.0
Simultaneously push and hold the OFF and LO buttons until you see F.0.0 and release the buttons.
Turn OFF ignition.
Wait 30 seconds and then redisplay your codes again and see which ones redisplay and if any display as E or EE or F or FF codes.
