Climate Control Systems

• Component Location Index
• General Troubleshooting Information
  • How to Retrieve a Diagnostic Trouble Codes
  • Displaying Sensor Inputs at the Climate Control Unit
  • Check these items before using the sensor input display mode
  • To run the sensor input display mode, follow these steps.
• Diagnostic Trouble Codes Troubleshooting Index
• Symptom Troubleshooting Index
• System Description
  • Climate Control Unit Inputs and Outputs (Without Navigation System)
  • Climate Control Unit Inputs and Outputs (With Navigation System)
• Circuit Diagram
• Diagnostic Trouble Codes Troubleshooting
  • Notes
  • DTC indicator A: An Open in the In-car Temperature Sensor Circuit
  • DTC indicator B: A Short in the In-car Temperature Sensor Circuit
  • DTC indicator C: An Open in the Outside Air Temperature Sensor Circuit
  • DTC indicator D: A Short in the Outside Air Temperature Sensor Circuit
  • DTC indicator E: An Open in the Sunlight Sensor Circuit
  • DTC indicator F: A Short in the Sunlight Sensor Circuit
  • DTC indicator G: An Open in the Evaporator Temperature Sensor Circuit
  • DTC indicator H: A Short in the Evaporator Temperature Sensor Circuit
  • DTC indicator I: An Open in the Air Mix Control Motor Circuit
  • DTC indicator J: A Short in the Air Mix Control Motor Circuit
  • DTC indicator K: A Problem in the Air Mix Control Linkage, Door, or Motor
  • DTC indicator L: An Open or Short in the Mode Control Motor Circuit
  • DTC indicator L: A Problem in the Mode Control Motor Circuit
  • DTC indicator M: A Problem in the Mode Control Linkage, Doors, or Motor
  • DTC indicator N: A Problem in the Blower Motor Circuit
• ECT Sensor Circuit Troubleshooting.
• Recirculation Control Motor Circuit Troubleshooting.
• A/C Pressure Switch Circuit Troubleshooting.
• Climate Control Power and Ground Circuit Troubleshooting.
• Climate Control Panel Troubleshooting.
  • With Navigation System
• Manual Switch (Navigation System Display) Troubleshooting
• In-car Temperature Sensor Test.
• In-car Temperature Sensor Replacement
• Outside Air Temperature Sensor Test
• Outside Air Temperature Sensor Replacement
• Sunlight Sensor Test
• Sunlight Sensor Replacement
• Power Transistor Test
• Climate Control Unit Removal and Installation
  • Without Navigation System
• Climate Control Panel Removal and Installation
  • With Navigation System
• Climate Control Unit Disassembly and Reassembly.
  • Without Navigation System