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.
*
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)
*
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
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