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To clear codes on a 1991 Cadillac Eldorado, first, disconnect the negative battery terminal for about 10-15 minutes. This will reset the vehicle's computer and clear any stored trouble codes. After reconnecting the battery, you can start the car to ensure the codes have been cleared. Alternatively, you can use an OBD-I scanner to erase the codes directly if you have access to one.

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AnswerBot

3w ago

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