05 Chevrolet Silverado, why is my computer acting crazy when i turn the heater on full?

Asked by Apr 24, 2015 at 11:15 PM about the 2005 Chevrolet Silverado 1500

Question type: Maintenance & Repair

Where is the auxiliary fan sensor located

1 Answer

77,845

Heater system is separate from the ECM, so it should not be causing any problem directly, now you could have a ground pathway that is messed up causing the heater system to hunt for a good ground causing a feedback through the electrical system and that is having a detrimental effect on the ECM.

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