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Q: Service engine soon light on 1996 Cadillac DeVille

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
The service engine soon light is on, and i don't know how to get it off there.
The engine runs fine, i don't know why this light is on.
Any help will be appreciated!!!
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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Hi could you reask your question with the code listed in the header (1996 Cad P1660 code autotechpat) and maybe tonight pat will see this and help you solve this
Need to have the codes read by a repair shop or if Autozone is still performing this, then tell us what code came up
Autozone did test it and the code came up as p1660 which is the cooling fan control circuit says the ECM has detected an improper voltage level on the output driver module for the cooling fan driver circuit.
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