Cadillac: 1988 Fleetwood DElegance Service Soon Light, oxygen sensors, oxygen sensor


Question
One last question, how do I clear the codes from the system? Thanks! Dale
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Thank you for the quick reply. I did not see anything concerning the E52 code. Any suggestions? Thanks
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The service soon light came on approx. 3 weeks ago and I am having a hard
time
getting it to the shop. Initially the light only came on after climbing a
moderate
hill and would go out approx. 5 minutes later. It is now coming on more
frequently. Codes are as follows: ..E   E13   E52   ..F   F46   F47   FF  F47  .7.0
Could you please tell me what these mean and how urgent service is needed.
Your time is most appreciated!
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For the E13. Replace the oxygen sensor.

For the F46 and F47. You are most likely LOW on freon in the AC system.

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E52 just means that the battery was disconnected at some time in the past.

Once you replace the oxygen sensors, Make SURE that you CLEAR the codes from the computer.

Answer
1. ignition ON. Engine OFF.

2. Simultaneously push and hold the OFF and WARMER buttons on your climate control panel until the whole panel illuminates and then release the butons.

3. After the codes appear you will see .7.0

4. Simultaneously push and hold the OFF and HI buttons until E.0.0 appears and release the buttons.

5. Simultaneously push and hold the OFF and LO buttons until F.0.0 appears and release the buttons.

6. Turn ignition OFF. Wait 15 seconds and then re-enter diagnostics and see what codes reappear.