Opel Frontera UE. Manual - part 1249

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–117

Chart 2: Ambient Sensor 

D08R100121

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.
Disconnect auto air conditioner control unit
connector.(No.I–44)
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?

—

Go to Step 2

—

4 

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

—

Verify repair

—

SECTION

1A–118

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Chart 3: Sun Sensor 

D08R100177

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.I50–2.
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

—

SECTION

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–119

Inspection of the Intake Actuator System 

D08R100129

SECTION

1A–120

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Chart A: Does Not Work At All

Condition

Possible cause

Correction

Does not work at all

—

Refer to Chart A

Control failure

—

Refer to Chart B

Step

Action

Value(s)

Yes

No

1 

Is the fuse C–15 normal?

—

Go to Step 2

Replace the 

fuse

2 

Is the fuse F–5 normal?

—

Go to Step 3

Replace the 

fuse

3 

Is the relay X–1 normal?

—

Go to Step 4

Replace the 

relay

4 

Turn on the ignition switch. (the engine is run.)
Is the battery voltage applied between the harness
side connector terminal No.C65–3 and ground?

Approx 12V

Go to Step 6

Go to Step 5

5 

Repair an open circuit between terminal No.C65–3
and No.X1–1.
Is the action complete?

—

Go to Step 4

—

6 

Is the battery voltage applied between the harness
side connector terminal No.C65–4 and ground?

Approx 12V

Go to Step 8

Go to Step 7

7 

Replace the intake actuator motor.
Is the action complete?

—

Go to Step 6

—

8 

Is there continuity between the harness side
connector terminal No.I20–11 and No.C65–4?

—

Go to Step 10

Go to Step 9

9 

Repair an open circuit between No.I20–11 and C65–4.
Is the action complete?

—

Go to Step 8

—

10 

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

—

Verify repair

—

SECTION