Opel Frontera UE. Manual - part 1247

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–109

Performance and Movement checklist for Automatic Air Conditioner Related
Parts

Start the engine, and when the engine coolant reached
50

°

C check performance and movement of the related

parts according the following checklist.

Performance Check Using the Manual Switch

No.

Item

Checking Approach

Acceptance criteria

Condition

Operation

1

Blowing
temperature (check
movement of air
mix door)

Auto switch must be
turned on    (FAN-AUTO
MODE-AUTO)

1. Select FC for the

setup temperature.

2. Select FH for the

setup temperature.

→

 Then, select the

MAX Control.

1. Cold air shall be blown out.

2. Hot air shall be blown out.

2

Airflow volume
(check movement
of the mode door)

Set temperature to
25.0

°

C.

1. Turn the fan knob

off.

2. Turn the fan knob

from LOW to HI.

1. The fan shall be stopped, thus

stopping air blow, too.

2. Airflow volume shall change from

LOW to HI.

3

Blowing
temperature
(check movement
of the mode door)

Set temperature to
25.0

°

C.    Set the fan

knob to HI.

Press the mode switch
to change the blow port
mode sequentially from
the VENT through
BI-LEVEL, FOOT up to
DEF.

LED corresponding to each mode
shall be turned on and the blow port
mode shall be switched smoothly.

4

The interior/outside
air switching mode
(check movement
of intake door)

Set temperature to
25.0

°

C.

Turn the LED off using
the interior/outside air
switch (this introduces
the outside air intake
mode).  Then, the set
fan knob to HI and
press the interior/
outside switch to turn
on the LED.

The LED indication shall be switched
from OFF to ON accompanying a
change in air blowing sound.

5

Compressor

Set the temperature to
18.0

°

C (FC).  (Outside

air temperature is 0

°

C

or above and interior
temperature at ordinary
temperature.)

Press the “OFF" switch.

1. Press the Auto

switch.

2. Press the Air

Conditioner switch.

1. As the fan knob is set to the Auto

position, the A/C switch LED
shall come on and the
compressor shall be turned on.

2. As the A/C LED comes off, the

compressor shall be turned off.

SECTION

1A–110

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Check of Auto Function

No.

Item

Checking Approach

Acceptance criteria

Condition

Operation

1

Auto function

FAN KNOB “AUTO"

MODE SW “AUTO"

Select FC for the 
temperature.

The LED shall come on. 
Cold air shall be blown out.
The following LEDs shall come on:

• Blow port mode:

• Intake mode

• Fan speed: MAX

Hi

• A/C

Change the 
temperature 
gradually starting 
with 18

°

C up to 

32

°

C.

The following phenomena shall be
recognized.

• Temperature of blown air: Cold air is

changed to hot air.

• Change in the air flow volume.

• The blow port mode LED indication

changes in the following sequence:

Select FH for the 
temperature.

Cold air shall be blown out. The
following LEDs shall come on.

• Blow port mode:

• Fan speed: Max.

SECTION

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–111

Troubleshooting With Self-Diagnosis Function

Overview of Self-Diagnosis Function

The self-diagnosis is implemented in 3 steps for each
target.  For detail of check procedure contained in each
step, refer to the relevant section of “Check Procedure
by Failed Location" listed in the Self-Diagnosis
Operation Procedure.

For turning on the self-diagnosis function and switching
of the check step, refer to the flow chart given below.
You can reset the self-diagnosis function by turning the
ignition switch off or turning the DEF switch on for 5
seconds.

Self-Diagnosis Operation Procedure

Step

Action

Value(s)

Yes

No

1 

1. Set the IG to the OFF position.

2. Apply 60W bulb light to the solar radiation sensor.

3. Set the temperature setting lever on the automatic

heater/air conditioner panel to the center position
(25

°

C).

4. Set the fan switch on the same panel to the Auto

position.

Is the action complete?

—

Go to Step 2

—

2 

While holding both the Auto switch and the DEF
switch on the automatic air conditioner panel, turn the
IG off and then on.
Is the current trouble diagnosing function turned on
approximately in 10 seconds?

—

Go to Step 3

—

3 

Does the A/C LED flash every 0.5 second interval?

—

Go to Step 4

Refer to *1.

4 

Press the A/C switch once.
Does the A/C LED flash every 0.5 second interval?

—

Go to Step 5

Refer to *2.

5 

Refer to *3 chart “Check of Output Equipment".
Does each output equipment function normally
according to operation of the temperature setting
level?

—

Go to Step 6

Repair or 

replace the 

output 

equipment or 

repair the 

harness

6 

Press the DEF switch for 5 seconds consecutively or
turn on and off the IG.
Is the action complete?

—

Go to Step 1

—

SECTION

1A–112

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

SECTION