Where is the ground wire to heater blower?

The ground wire for the heater blower is typically connected to the vehicle's chassis or the blower motor housing itself. You can usually find it near the blower motor assembly, often attached to a screw or bolt that connects it to a metal part of the car. It's important to check the vehicle's service manual for the specific location for your model, as it can vary. If you’re experiencing issues, ensure the ground connection is clean and secure to avoid electrical problems.