Questioni have alreay tried that no codes appear
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Followup To
Question -
1990 Cadillac Seville 4.5 v8. When i turn the car on driver information displays "system problem" I can not get any trouble codes from pressing off and warmer or either can several garages. i have tried replacing the body control module under the glove box and the power supply module and the module next to it. what can be the problem?
Answer -
Perform this test:
1. Ignition ON. Engine OFF.
2. Simultaneously push and hold the OFF and WARMER buttons for 3 seconds and then release them.
3. Diagnostic LETTERS and NUMBERS will start to appear.
4. Write them down EXACTLY as they appear in the EXACT order in which they appear and lt me know what they are.
5. turn ignition OFF.
If you miss or can't write fast enough, Just repeat the above test sequence.
tom
AnswerYou will need to contact me at:
onlineautohelp@msn.com
In order for me to provide you with pictures, Instructions and electrical schematics (pictures).
PLEASE include your original question(s) and the MAKE-MODEL-YEAR and ENGINE SIZE of your vehicle when you contact me.
PLEASE tell me if you do your own repairs and or your skill level of auto repair. This is VERY VERY important if I am to be able to help you repair your own vehicle.
