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Service engine soon light

(1996 Cadillac DeVille)
in Union City, IN on March 01, 2010
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!!!
Displaying 2 answers & 1 comments
Popular Answer
on March 02, 2010
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
on March 01, 2010
Need to have the codes read by a repair shop or if Autozone is still performing this, then tell us what code came up
on March 02, 2010
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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