FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Electrical System

The manual A/C heater electrical system consists of the following components:
- blower motor
- heater blower motor switch
- A/C damper door switch
- A/C electronic door actuator motor
- heater blower motor switch resistor with a thermal limiter
- A/C pressure cut-off switch
- A/C cycling switch
- A/C clutch
- the A/C clutch control relay
- A/C wide open throttle relay
- A/C heater blower relay
- Powertrain Control Module (PCM)
- fuses and wiring to complete the circuit
The blower motor is installed in the A/C evaporator housing.

The heater blower motor switch:
- is mounted on the A/C control assembly.
- with the heater blower motor switch resistor, allows the selection of four A/C blower motor speeds.

The heater blower motor switch resistor:
- is installed in the A/C evaporator housing.
- contains a thermal limiter, which is used as a temperature protecting fuse.