Cadillac Repair: SERVICE ENGINE SOON, digital dash, word history


Question
QUESTION: i JUST GOT A 1995 CADILAC SEDAN DEVILLE WHEN i START THE CAR THE DIGITAL DASH SAYS SERVICE ENGINE SOON i CAN RESET IT AND IT STAYS OFF BUT IF I DON'T RESET IT STAYS ON I CHECKED ALL FLUIDS AND EVERYTHING IS FULL THE OIL STILL HAS 59% LIFE LEFT. WHAT CAN BE MAKEING THIS FAULT COME UP?
         THANK YOU FOR ANY INFO
         mIKE

ANSWER: You have to retrieve the CODES from the computer.

1. Turn ignition switch ON. Do NOT start the engine.

2. Simultaneously push and hold the OFF and WARMER buttons on the climate control panel for 3 seconds and release them.

On the fuel data screen you will see LETTERS & NUMBERS appear along with the word HISTORY or CURRENT.

The display will stop and display PCM?.

Tell me what codes you get and if they are CURRENT or HISTORY .

Turn OFF ignition switch.

---------- FOLLOW-UP ----------

QUESTION: thank you
current codes
PO19
AO13
history codes
PO22,PO98,PO70,PO91
Also says no IPC codes
Then says PCM?

Answer
P019 = shorted fuel pump circuit.
A013 = IN-Car temp circuit problem.

You will need, If necessary, Electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture.  I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.