Operation CHARM: Car repair manuals for everyone.

Electrical System

The electrical system consists of the following components:
- blower motor
- heater blower motor switch
- A/C-heater function selector switch
- heater blower motor switch resistor with a thermal limiter
- A/C pressure cut-off switch
- A/C cycling switch
- A/C clutch
- Constant Control Relay Module (CCRM)
- Powertrain Control Module (PCM)
- fuses and wiring to complete the circuit

The blower motor is installed in the heater blower motor housing, which is part of the A/C evaporator housing.

The heater blower motor switch:
- is mounted on the integrated control panel.
- with the heater blower motor switch resistor, allows the selection of four 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.