Jeep Cherokee (XJ): Heating and air conditioning
Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Heating and air conditioning
- Description and operation
- Accumulator. Blower motor. Blower motor relay
- Blower motor resistor. Blower motor switch. Compressor
- Compressor clutch. Compressor clutch relay. Condenser
- Dual function high pressure switch (4.0 L). Evaporator coil. Fixed orifice tube
- Heater and air conditioner. Heater and air conditioner control. Heater core
- High pressure cut-off switch. High pressure relief valve. Low pressure cycling clutch switch
- Refrigerant. Refrigerant lines. Refrigerant line couplers
- Refrigerant oil. Refrigerant system service port. Vacuum check valve
- Vacuum reservoir
- Diagnosis and testing
- A/C performance
- Blower motor. Blower motor relay. Blower motor resistor
- Blower motor switch. Compressor. Compressor clutch coil
- Compressor clutch relay. Dual function high pressure switch/high pressure cut-off switch. Heater performance
- Low pressure cycling clutch switch. Refrigerant system leaks. Vacuum system
- Service procedures
- Removal and installation
- Service warnings and precautions
- Accumulator. Blend-air door motor. Blower motor
- Blower motor relay. Blower motor resistor. Compressor
- Compressor clutch
- Compressor clutch relay. Condenser. Dual function high pressure switch/high pressure cut-off switch
- Ducts and outlets
- Evaporator coil. Fixed orifice tube. Heater-a/c control
- Heater-A/C housing
- Heater-A/C housing door
- Heater core. Liquid line. Low pressure cycling clutch switch
- Kick cover. Mode door vacuum actuator. Refrigerant line coupler
- Suction and discharge line. Vacuum check valve. Vacuum reservoir
- Specifications
BODY
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Other materials:
Modes of operation
OPERATION
As input signals to the Powertrain Control Module
(PCM) change, the PCM adjusts its response to the
output devices. For example, the PCM must calculate
different injector pulse width and ignition timing for
idle than it does for wide open throttle (WOT).
The PCM will operate in two ...