Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
No one makes an aftermarket relay box for this, so you would need either have one ordered from the dealership or look for one at your local salvage yards.
Because how the relays work in conjunction with the ECM, ECT sensor, and AC pressure sensors, you cannot simply bypass these relays or the relay box and just tie them together.
If the signal is missing due to deleting the electric fan and going with a fan clutch, the check engine light will stay on due to a fault code for no signal voltage. Also, it will cause a signal to be sent to the ect sensor and ac pressure sensors and will prevent the ac clutch from kicking in when ac is selected.
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