Cadillac Repair: check engine light, number combinations, e56


Question
HOW DO I RETRIEVE THE CODES
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Followup To

Question -
it is me again i have a 1991 sedan dev my service eng light comes on sometimes and the anti lock light comes on when i put my car in drive any suggestions

Answer -
Retrieve the codes from the computer and let me know what they are.

tom

Answer
1. Ignition ON. Engine OFF.

2. Simultaneously push and hold the OFF and WARMER buttons for 3 seconds and release them.

3. Diagnostic codes in the form of letters and numbers will start to appear and will stop when you see .7.0

4. Write down these letter number combinations EXACTLY as they display and in the exact order in which they display.

5. You might see E44 E56 and then EE44 and EE56. I need to know EVERY lettera nd number that appears.

6. let me know what they are.

7. When you see the .7.0, Simultaneously push and release the OFF and HI buttons and you will see E.0.0 and then release the buttons.

8. Turn ignition off for 30 seconds and repeat steps 1 thru 6 and then turn the ignition OFF.