Circuit/System Verification
WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Verify the cooling fan operation using the scan tool commands listed below:
- Fan relay 1 ON-Both fans run at low speed.
- Fan relays 2 and 3 ON-The right fan runs at high speed, the left fan is OFF.
- Fan relays 1, 2 and 3 ON-Both fans run at high speed.