Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 560

1A–108 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

*

1

Displaying the Current Trouble

Diagnosing Table

Start the engine while holding down both the Auto switch
and the DEF switch on the control panel, and the table will
appear in approximately 10 seconds to the indicator lamp
(LED) of the air conditioning switch. Result of the
diagnosis along the following 9 items will be shown one by

one in 0.5 second interval irrespective of presence or
absence of a trouble for a given item. When the display 9
items is completed, it is repeated with 3 seconds of
interval in between. A failed item is indicated by flashing of
the LED that is repeated 3 times within 0.5 seconds. If a
trouble is indicated, you can locate the failed section by
knowing when in the total sequence it has been
displayed.

F01RX010

Item for Current Trouble Diagnosis

F01RY00008

HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–109

As shown above, display of result along nine items is
repeated with 3-second interval in between.
Note 1: When checking the sun sensor, apply sufficient
light using a 60W bulb. Otherwise, it can be diagnosed as
failed.
Note 2: If the temperature setting lever is set on both ends
{one set to 18

°

C (64.4

°

F), blue scale = Full cool and the

other to 31

°

C (87.8

°

F), red scale = Full hot}, they can be

diagnosed as failed.
Note 3: Likewise, the fan switch can be diagnosed as
failed if set on both ends.

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2

Displaying the Past Trouble Diagnosing

Table

The past trouble diagnosis displays only the items on
which trouble has recurred 16 times in the past.
If you press the air conditioning switch once while the
current trouble diagnosis is taking place, display of the

past trouble diagnosis will appear on the indicator lamp
(LED) of the air conditioning switch.
Results of the diagnosis along the following five items are
displayed one by one in 0.5 second interval irrespective of
presence or absence of a trouble. A failed item is
indicated by flashing of the LED that is repeated 3 times
within 0.5 seconds. You can locate the failed section by
counting in what sequence it has been displayed.
Past trouble code can be cleared by disconnecting one of
the following sources for at least thirty (30) seconds.

NOTE: To prevent system damage, the ignition key must
be  “OFF” when disconnecting or reconnecting battery
power.

D

The No.16 fuse (Room lamp, Clock)

D

The negative battery cable. (Disconnecting the
negative battery cable will result in the loss of other
on-board memory data, such as preset radio tuning).

F01RX011

F01RY00007

1A–110 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

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3

Check of Output Equipment

F01R200005

HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–111

Inspection By Failed Location

Inspection of the Sensors

When the self-diagnosis function has determined that
trouble is present on the sensors, check them according
to the following flow chart.

F01RY00005