Cadillac Repair: Warning lights., vehicle speed sensor, safety switch


Question
"I have a 1992 Cadillac Turing de Ville. The engine is 4.9 L. I have many troubles with the warning light, "vehicle service soon" This Light some times is on, other times is off. I check brakes, fluids, chassis grease. Please tell me what the problem is.
I press the buttons "off and warmer" and the the display say: 8.8.8.E E52 E75 E91 E.E E91.E.7.0 Please tell me what is the problem.
Best regards


Answer
E52 mean that battery voltage was removed from the computer sometime in the past, Such as someone removed a battery cable from the battery.

E75 meand a fault in the VEHICLE SPEED SENSOR.

E91 means that the PRNDL (neutral starter safety switch) is faulty.

EE91 means that the PRNDL (neutral starter safety switch) is faulty.

.7.0 is just telling you that you are at the end of the codes sequences.

The E codes are HISTORY codes and are of no concern.

The EE codes need to be fixed NOW.

You will need simple 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.