• Climate Control System Description
  • Climate Control Component Location Index
  • Climate Control Circuit Diagram
  • Recirculation control doors do not change between Fresh and Recirculate
  • Blower, heater controls, and A/C do not work
  • Both fans do not run with the A/C on (but the A/C compressor runs with the A/C on)
  • A/C condenser fan does not run at all (but radiator fan runs with the A/C on)
  • A/C compressor clutch does not engage (but both fans run with the A/C on)
  • A/C system does not come on (both fans and the A/C compressor do not work); heater is OK
  • Blower fan runs slower than expected in cold weather
  • HDS does not communicate with the climate control unit or the vehicle
  • Climate Control Power and Ground Circuit Troubleshooting
  • Climate Control Symptom Troubleshooting Index
  • Climate Control Unit Bulb Replacement
  • Humidity/In-car Temperature Sensor Replacement
  • Outside Air Temperature Sensor Replacement
  • Sunlight Sensor Replacement
  • Climate Control Unit Removal/Installation
  • Humidity/In-car Temperature Sensor Test
  • Outside Air Temperature Sensor Test
  • Sunlight Sensor Test