Opel Frontera UBS. Manual - part 1876

 

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Opel Frontera UBS. Manual - part 1876

 

 

AIR CONDITIONING  1B–105

Chart A: Does Not Work At All

NO

Failure on the power supply circuit.

NO

Failure on the actuator.

NO

The harness is disconnected.

NO

Replace the automatic heater/air conditioner

control unit.

YES

YES

YES

YES

Turn on the ignition switch (the engine is

started).

Switch between the fresh air intake and the

interior air circulation.

Failure on the intake link unit (intake door

lock).

Is the battery voltage present between the
chassis harness side connector terminal
No.3 

and the ground?

I-49

Is the battery voltage present between
the chassis harness side connector
terminal No.4 

and the ground?

I-49

Is the battery voltage present between
the chassis harness side connector
terminal No.11 

and the ground?

I-32

During the above switch operations, did
the voltage between the chassis harness
side connector terminal No.11 

and

the ground go below 0.5V?

I-32

1B–106 AIR CONDITIONING

Chart B: Failure on the Intake Control

NO

The harness is disconnected.

NO

Failure on the automatic heater/air

conditioner control unit.

NO

Failure on the automatic heater/air

conditioner control unit.

YES

YES

YES

Turn on the ignition switch (the engine is

started).

Disconnect the intake actuator connector 

(I-49).

Failure on the intake actuator.

Is the intake actuator stopped?

Is conduction provided between the
following chassis harness side connector
terminals?
No.5 and 

No.11 .

No.6 and 

No.12 .

No.1 and 

No.13 .

No.2 and 

No.14 .

I-33

I-49

I-33

I-49

I-33

I-49

I-33

I-49

Is voltage (approximately 5V) present
between the following?
No.12 

and the ground.

No.13 

and the ground.

No.14 

and the ground.

I-33

I-33

I-33

AIR CONDITIONING  1B–107

Inspection of the Mix Actuator System

H-67

I-32

I-33

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

1

11

2

12

3

13

4

14

5

15

6

16

7

17

8

18

9

19

10

20

I-45

I-32

M

6

6

0.3 V/W

I-33

11

3

0.5 B/L

5

7

0.3 V

15

2

0.3 V/G

5

23

20

6

16

24

8

0.3 V/R

I-45

3 KW

Heat

(Potentio Meter)

Cool

Cool

Heat

Mix Actuator

Auto A/C Control Unit

HEAT TO COOL

 + 

Cool side

 + 

Heat side

COOL TO HEAT

GND

(Mix Potentio Meter)

(+

5 V

4

5

8

7

6

0.3 V/W

0.3 B/L

0.3 V

0.3 V/G

H-67

H-67

H-67

H-67

H-67

0.3 V/R

1

2

5

6

3

4

8

9

7

1 2

3

8

4 5 6 7

1

2

3

8

4

5

6

7

Type of the

trouble

Control failure.

Chart B

Does not work at all.

Chart A

D08RY00179

1B–108 AIR CONDITIONING

Chart A: Does Not work At All

NO

The harness is disconnected.

NO

Replace the automatic heater/air

conditioner control unit.

NO

Replace the automatic heater/air

conditioner control unit.

YES

YES

YES

Turn on the ignition switch (the engine is

started).

Disconnect the mix actuator connector

.

Short-circuit he chassis harness side
connector terminal No.3 

and No.7

.

I-45

I-45

I-45

Using the temperature control lever,

select FC for the temperature.

Using the temperature control lever,

select FC for the temperature.

Failure on the actuator.

Is the battery voltage present on a regular
interval basis between the chassis
harness side connector terminals No.6

(+) and No.5 

(-)?

I-32

I-32

Is conduction provided between the
following chassis harness side connector
terminals?
No.6 and 

No.6 .

No.5 and 

No.8 .

I-45

I-32

I-45

I-32

Is the battery voltage present on a regular
interval basis between the chassis
harness side connector terminals No.6

(-) and No.5 

(+)?

I-32

I-32

 

 

 

 

 

 

 

Content   ..  1874  1875  1876  1877   ..