1997 Chrysler Town and Country Front blower motor runs on h

Towed vehicle to with starting problem local franchised tune up shop and requested diagnostics on non functioning front blower motor and control for interior lights. Shop did diags, replaced battery, and reported need for a new blower motor and headlight/dimmer switch module. When van received back radio will not turn on, flashing lights on control buttons for A/C on off, A\C rear front recirculatiion, rear wiper on/off, and rear wiper delay. Replaced front blower motor. Flashing lights still come on but turn off after several minutes of drive time and then solid light for selected button only shows. Front blower motor will only run on high speed. I assume that the blower motor resistor needs to be replaced. Can you inform us if this assumption is correct and the location of the blower motor resistor? A location diagram would be appreciated if possible.

Thank You,

Jay A Fjeldsted
jayfpcs23@yahoo. Com
801-254-3051