HVAC

All Component Locator

• HVAC Component Views
• HVAC Components

All Description and Operation

• Air Conditioning (A/C) System Description
• Air Distribution System Description
• Ambient Air Temperature Sensor Description
• Dual Zone Air Conditioning (A/C) System Description
• Heater System Description
• HVAC Blower Controls Circuit Description
• Inside Air Temperature Sensor Description
• Operating Modes
• Programmer Description
• Refrigeration System Description
• Sun Load Temperature Sensor Description
• Vacuum Electrical Solenoid Description

All Special Tools and Equipment

• Special Tools

All Visual Identification

• HVAC Connector End Views

Diagnostic Procedures

• Blower Motor Always On
• Blower Motor Inoperative at Any Speed
• Diagnostic Starting Point
• Diagnostic System Check
• Symptoms
• Vacuum Control System Diagnostic

Diagnostic Trouble Codes

• DTC 10 Inside Air Temperature Sensor Voltage Low
• DTC 11 Inside Air Temperature Sensor Open Circuit
• DTC 12 LH Air Outlet Sensor Voltage Low
• DTC 13 LH Air Outlet Sensor Open Circuit
• DTC 14 RH Air Outlet Sensor Voltage Low
• DTC 15 RH Air Outlet Sensor Open Circuit
• DTC 16 Int Air Mix Door Mtr Volts Low/Open Circuit
• DTC 169 Outside Temperature Sensor Voltage Low
• DTC 17 Interior Air Mix Door Motor Voltage High
• DTC 171 Outside Temperature Sensor Open Circuit
• DTC 18 LH Air Mix Door Mtr Volts Low/Open Circuit
• DTC 19 LH Air Mix Door Motor Voltage High
• DTC 20 RH Air Mix Door Mtr Volts Low/Open Circuit
• DTC 21 RH Air Mix Door Motor Voltage High
• DTC 22 Floor Air Mix Dr Mtr Voltage Low/Open CKT
• DTC 23 Floor Air Mix Door Motor Voltage High
• DTC 24 Def Air Mix Door Mtr Volts Low/Open Circuit
• DTC 25 Defrost Air Mix Door Motor Voltage High
• DTC 27 Blower Motor Voltage Low or Open Circuit
• DTC 28 Air Circ. Valve Voltage Low or Open CKT
• DTC 29 Air Circulation Valve Voltage High
• DTC 30 Heating Cut-Off Valve Volts Low or Open CKT
• DTC 31 Heating Cut-Off Valve Voltage High
• DTC 35 A/C Request Signal Voltage High
• DTC 36 A/C Request Signal Voltage Low
• DTC 37 Heater and A/C Control Switch Stuck
• DTC 38 Solar/Twilight Sensor Supply Voltage Low
• DTC 39 Solar/Twilight Sensor Supply Voltage High
• DTC 40 Solar/Twilight Sensor GND Short to Voltage
• DTC 51 Replace Heater and A/C Control
• DTC 52 Heater and A/C Control Not Programmed
• DTC 55 Replace Heater and A/C Control
• DTC Table

Electrical/Electronic Schematic Diagrams

• HVAC Air Delivery/Temperature Control Schematics
• HVAC Blower Control Schematics
• HVAC Compressor Control Schematics
• HVAC Schematic Icons

Gas, Vacuum and Fluids Schematics and Diagrams

• HVAC Vacuum Schematics

General Diagnostic Information

• Re-Calibrating Actuators After Power Loss

Removal, Installation, and Replacement

• Air Conditioning (A/C) Temperature Sensor Replacement
• Air Mix Actuator Replacement - Driver
• Air Mix Actuator Replacement - Passenger
• Ambient Temperature Sensor Replacement
• Control Assembly Replacement
• Defroster Valve Actuator Replacement
• Sun Load Temperature Sensor Replacement
• Temperature Actuator Replacement