Section 17 (HVAC System - Testing & Troubleshooting (Hybrid))

• Symptom Troubleshooting Index for Viewer
  • A/C information does not display on the center display unit, but the blower, the heater, and the A/C system controls work (climate control panel without display)
  • Blower fan runs slower than expected in cold weather (when in AUTO mode)
  • Driver's and passenger's side vent temperatures vary by more than 20 °F (11 °C)
  • HDS does not communicate with the climate control unit or the vehicle
  • Insufficient heating
  • The blower, the heater controls, and the A/C system do not work
  • The electric A/C compressor and the cooling fan are inoperative, but the blower and heater controls work
  • When an engine stops, the heater does not warm (The PTC heater does not heat up)
• Description & Operation
  • A/C System Description
  • A/C System Description - Components
  • A/C System Description - System Diagram
  • Heated Steering Wheel System Description
  • Heated Steering Wheel System Description - Components
  • Heated Steering Wheel System Description - System Diagram
  • Rear Window Defogger System Description
  • Rear Window Defogger System Description - System Diagram
• Diagnosis
  • A/C Diagnostic Process
• General Information
  • A/C Service Tips and Precautions
    • Notes
    • A/C Label Description
• Symptom Troubleshooting Index
  • Climate Control System Symptom Troubleshooting Index
• Inspection
  • A/C System Contamination Inspection
    • Inspection
    • Replacement
  • A/C System Inspection
    • Inspection
• Replacement
  • A/C Refrigerant Oil Replacement
    • Notes
    • Replacement
  • A/C Refrigerant Recovery/Evacuation/Charging
    • Notes
    • Procedure
• Symptom Troubleshooting
  • Climate Control System Symptom Troubleshooting - The blower, the heater controls, and the A/C system do not work
• Test
  • A/C System Test
    • Test
  • Heated Steering Wheel Temperature Sensor Test
    • Test
  • Steering Heater Test
    • Test
• Connector View
  • Climate Control Unit Connector for Inputs and Outputs
  • Heated Steering Wheel Control Unit Connector for Inputs and Outputs
• Check
  • A/C Refrigerant Leak Check
    • Check
  • A/C System Noise Check
    • Check
• Troubleshooting
  • PTC Heater Circuit Troubleshooting
• Repair Regeneration
  • Rear Window Defogger Wire Repair
    • Reconditioning
• Circuit Diagram
  • Climate Control System Circuit Diagram
  • Heated Steering Wheel Circuit Diagram
  • Rear Window Defogger Circuit Diagram
• Adjustment
  • A/C Refrigerant Oil Adjustment
    • Adjustment
      • Notes
      • Procedure
• Component Location Index
  • Climate Control System Component Location Index
  • Heated Steering Wheel Component Location Index
  • Rear Window Defogger Component Location Index