The heating, ventilation and air conditioning (HVAC) system is divided into
two separate sections. The first, heating, ventilation and air conditioning,
has all procedures that pertain to a HVAC component or function that is not
specifically associated with the automatic control system. The second, HVAC
Systems - Automatic, has all procedures specific to the automatic control
system.
Begin the system diagnosis with the
Diagnostic System Check - HVAC Systems - Automatic
in HVAC Systems - Automatic.
The Diagnostic System Check will provide the identification of the control
modules which command the system.
The use of the Diagnostic System Check will identify the correct procedure
for diagnosing the system and where the procedure is located.
Review the description and operation information to help you determine the
correct symptom diagnostic procedure when a malfunction exists. Reviewing the
description and operation information will also help you determine if the condition
described by the customer is normal operation. The HVAC description and operation
information is divided into the following:
The air delivery description and operation contains the following topics:
| • | HVAC Control Components |
| • | Recirculation Operation |
The air temperature description and operation contains the following topics:
| • | HVAC Control Components |
| • | Heating and A/C Operation |
| • | Steering Wheel Controls |
