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Cadillac Repair/trouble code p1660


Robert Diedrich wrote at 2015-12-31 07:43:15
Just went through the same problem .

Went down my list of possible causes and of course it was the last one on my list and hardest to get to with my big hands but I got it done . It was heat sensor on rear head Drivers side

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On hands professional expertise in all aspects of Cadillac diagnostics and repair mid 1970`s thru 2000 year vehicles. GM certified in electronic fuel injection, Automatic transmission, Heating and A/C, and onboard vehicle computer diagnostics.


Held over 15 GM certifications prior to retirement in 1989.

Prior to retirement held several ASE certifications, numerous Factory certifications.

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