Opel Frontera UE. Manual - part 639

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–113

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

1A–114

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Chart 1: In Car Sensor

D08RY00888

Step

Action

Value(s)

Yes

No

1 

Disconnect the in car sensor connector. (No.I-4)
Is performance of the sensor normal? (Refer to the
later section on “Individual Inspection")

—

Go to Step 2

Replace the in 

car sensor

2 

Is there continuity between the harness side
connector No.I44–1 and No.I4–3?

—

Go to Step 4

Go to Step 3

3 

Repair an open circuit between terminal No.44–1 and
No.I4–3.
Is the action complete?

—

Go to Step 2

—

4 

Is there continuity between the harness side
connector No.I44–11 and No.I4–4?

—

Go to Step 6

Go to Step 5

5 

Repair an open circuit between terminal No.I44–11
and No.I4–4.
Is the action complete?

—

Verify repair

—

6 

Replace the auto air conditioner control unit.
Is the action complete?

—

Verify repair

—

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–115

Chart 2: Ambient Sensor 

D08RY00886

Step

Action

Value(s)

Yes

No

1 

Disconnect ambient sensor connector. (No.C–8)
Is performance of the ambient sensor normal? (Refer
to the later section on “Individual inspection")

—

Go to Step 2

Replace the 

ambient sensor

2 

Connect the ambient sensor connector.
Is resistance between the harness side connector
No.I44–2 and No.I44–11 normal?

Refer to the 

later section 

on “Individual 

inspection"

Go to Step 4

Go to Step 3

3 

Repair an open circuit between terminal No.I44–2 and
No.C8–1 or No.I44–11 and No.C8–2.
Is the action complete?

—

Verify repair

—

4 

Replace the auto air conditioner control unit.
Is the action complete?

—

Verify repair

—

1A–116

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Chart 3: Sun Sensor 

D08RY00887

Step

Action

Value(s)

Yes

No

1 

Disconnect the sun sensor connector. (No.I–50)
Is performance of the sun sensor normal? (Refer to
the later section on individual inspection)

—

Go to Step 2

Replace the 

sun sensor.

2 

Is there continuity between the harness side
connector terminal No.I44–3 and No.I50–2?

—

Go to Step 4

Go to Step 4

3 

Repair an open circuit between terminal No.I44–3 and
No.50–2.
Is the action complete?

—

Go to Step 2

—

4 

Is there continuity between the harness side
connector terminal No.I44–11 and No.I50–1?

—

Go to Step 6

Go to Step 5

5 

Repair an open circuit between terminal No.I44–11
and I50–1.
Is the action complete?

—

Go to Step 4

—

6 

Replace the auto air conditioner control unit.
Is the action complete?

—

Verify repair

—