Question about 2012 Chevrolet Cruze LS Sedan 1.8L 4-cyl. 6-speed Manual
Code from OnStar and relates to cooling fan coming on when it should not and running full speed
Posted by Anonymous on
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Posted on Jan 02, 2017
Check the coolant temperature sensor, it may have dirty contacts which is an easy job to fix. Signal from the coolant sensor indicates to the ECM that the engine is at running temperature and for the ECM to reduce the amount of fuel from the injectors (always a rich mix when warming up). (A little while later the thermostat should open allowing hot coolant to flow via the top hose to the radiator) The ECM rthen triggers the (5 pin) relay and the fans then come on. Check also the coolant relay fuse.
Posted on Jul 22, 2010
Testimonial: "Thanks for the quick response!!"
is the passenger side coming on? it is possible that it is setting the code for different speeds also. may want to check the cooling fan relays.
Posted on Aug 03, 2011
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