1. Relay: The relay for the heater blower motor is typically located in the engine compartment, near the battery or fuse box. It is usually a small, black box with multiple terminals and may be labeled "blower relay" or something similar.
2. Resistor: The resistor for the heater blower motor is usually located inside the passenger compartment, either behind the glove box or under the dashboard. It is often a cylindrical or rectangular-shaped component with multiple wires connected to it.
To find the exact location of the relay and resistor for your specific Isuzu Trooper, you can refer to the owner's manual or a repair manual for your vehicle. Additionally, you can also consult with a qualified mechanic who is familiar with Isuzu vehicles.
