Front blower motor for heat/air not turning on?

Does it have the manual controls or the automatic heat system. Different power feeds and controls.

Manual control - Fuse 7 (40A) in the PDC on the left fender. It feeds power to the fan relay on the left side of the header panel through a Red wire. Then out of the relay to the blower motor through a Dark Blue wire. The motor is grounded through the Dark Blue w/Gray trace wire through the blower motor resistor in the right side of the HVAC plenum.
To test the feed side you could take a section of wire, connect it to the battery positive and to the Dark Blue wire on the blower motor. If the blower runs and you can change speeds, the problem is the relay, fuse or associated wiring. If it doesn't then the resistor or control switch or ground (behind right kick panel, also grounds rear blower control)

Automatic control - Looks like the blower control module (right side of HVAC duct) the blower motor or the control head would be the issue. They share power with the rear system.

Check underside of fuse box cover for diagram

OK, you had to have the upscale system. :-)

On the right side of the heater box you will find the blower control module.
It will have two connectors on it.
One with 2 wires that goes to the blower motor
The other with 3 wires that provides the control and power.

First check for 12V on the Dark Blue wire with the key on.
If you have power there use it with a test light to check the Black wire for ground.

If both of those check out. Unplug the two wire connector.
Connect a jumper from the Black ground wire to the Dark Blue with Brown trace wire. In the connector.
Touch a jumper wire from the power (Dark Blue) wire to the Dark Blue with White trace wire. If the blower motor starts running the motor is OK.

That leaves the blower control module and the head unit. Depending on how the control system works the next test >>> might

You have separate blower motors for front and rear. Most likely either loss of power to the front blower motor or the blower motor itself is shot. First check fuses and check blower motor relays.

Locate blower motor and disconnect plug
place switch on high
use a test light check for battery power at wire plug
and check for ground
one should have battery volts and the other should have ground
and if so replace the blower motor its no good

This guide can help

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

You need to start by checking if there is power to the blower motor under the dash. If there is power, chances are the motor is bad. If there is no power, it could be a few things. We will need to trace the wiring back from the engine to the switch to see where power is lost.

If fan does not work at all, then fuse/relay would be first thing to check. If OK then apply 12V to fan motor to see if motor is problem.

You should still have HIGH speed on the fan if it was the resistor pack. No high speed and the resistor pack was the fault

Tony, is your email address listed on your profile correct?
And do you know how to read schematics?