1997 Chevrolet Lumina 3.1L, what is the P1651 code?
HI there
This code is for the fan 1 relay control circuit. This will usually mean there is a problem with the relay or the wiring to the relay. Here is some more info on the code for you.
P1651 CHEVROLET - Fan 1 Relay Control Circuit Read more: https://www.autocodes.com/p1651_chevrolet.html
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