Troubleshooting; Troubleshooting, Its Overview And Procedures - Isuzu 2000 Trooper Workshop Manual

1A–102 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Troubleshooting, Its Overview and
Procedures
The full automatic heater and air conditioner equips with
the "Self-Diagnosis Function" to check its major
components.
This function makes access to the sensors, actuators and
blower fan motor system easier when checking them up
and, when a failed part is located, this function restores its
original performance.
Basic Troubleshooting Flow

Troubleshooting

When
self-diagnosis function narrows the range to be searched
at the first step, then check relevant parts one by one
according to the "Checking Procedures by Failed
Location". As for a location this function is unappreciable,
the system accurately determines characteristics of a
given trouble and checks relevant parts according to the
"Checking Procedures by Failed Location".
The following illustrates basic troubleshooting flow.
implementing the troubleshooting, this
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