Opel Frontera UBS. Service manual — part 1875
AIR CONDITIONING 1B–101
Chart 1: In Car Sensor
NO
Replace the sensor.
NO
Disconnection of the harness.
Failure on the automatic heater/air
conditioner control unit.
YES
Disconnect the in car sensor connector (I-34).
YES
Is the sensor performance normal? (refer to
the later section on "Check Up")
Are conduction provided between the
following connector terminals on chassis
harness side?:
No.3 and
No.1 .
No.4 and
No.11 .
I-33
I-34
I-33
I-34
I-33
I-34
1
11
2
12
3
13
4
14
5
15
6
16
7
17
8
18
9
19
10
20
0.3 BR/B
0.5 B/L
11
1
In car Sensor
Auto A/C Control Unit
(In car Sensor)
(Sensor GND)
4
3
I-33
I-34
1 2
4
3
D08RY00174
1B–102 AIR CONDITIONING
Chart 2: Ambient Sensor
NO
Replace the ambient sensor.
NO
Failure on the harness.
Connect the ambient sensor connector.
Replace the automatic heater/air conditioner
control unit.
YES
Disconnect the Ambient sensor connector
(C-86).
YES
Is performance of the ambient sensor
normal? (Refer to the later section on
"Check Up".)
Is resistance between the following
connectors normal?
No.2 and
No.11 .
I-33
I-33
I-33
C-86
H-24
1
11
2
12
3
13
4
14
5
15
6
16
7
17
8
18
9
19
10
20
0.3 LG/B
0.3 B/L
11
2
Ambient Sensor
Auto A/C Control Unit
(Ambient Sensor)
(Sensor GND)
I-33
0.3 LG/B
0.3 B/L
H-24
8
H-24
9
C-86
1
C-86
2
17 18
16
15
14
7 8
6
5
12 13
11
10
9
4
1
3
2
5
6
7
8
15
16
17
18
14
2
3
4
1
10
11
12
13
9
1
2
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AIR CONDITIONING 1B–103
Chart 3: Sun Sensor
NO
Replace the sun sensor.
NO
Replace the harness.
Replace the automatic heater/air conditioner
control unit.
YES
Disconnect the sun sensor connector (I-35).
YES
Is performance of the sun sensor normal?
(Refer to the later section on "Check Up".)
Is the conduction provided between the
following chassis harness side connector
terminals?
No.3 and
No.1 .
No.11 and
No.2 .
I-35
I-33
I-35
I-33
0.3 LG/W
0.3 B/L
11
3
Sun Sensor
Auto A/C Control Unit
(Sun Sensor)
(Sensor GND)
I-33
I-35
1
I-35
2
I-33
I-35
2 1
1
11
2
12
3
13
4
14
5
15
6
16
7
17
8
18
9
19
10
20
D08RY00177
1B–104 AIR CONDITIONING
Inspection of the Intake Actuator System
B-19
I-32
B-36
H-26
H-13
I-49
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
10 11 12 13 14 15
1 2 3 4 5
17 18 19 20
6 7 8 9
16
9 8 7 6
20 19 18 17 16
5
14
15
4
13
3
12
2
11
1
10
B-36
1
2
3
4
M
FL-1 80A
MAIN
11
0.5 L/O
STARTER RELAY
I-33
11
12
13
14
0.3 L/R
0.5 L/W
0.3 B/L
0.3 L/Y
Intake Actuator
Auto A/C Control Unit
BATT.
(Intake Actuator)
GND(COM)
CIRC
FRESH
MIX
I-32
2
1
4
3
0.5 BR
0.5 BR
3.0 L/R
C-20 10A
A/C
I-49
3
H-13
10
I-49
4
I-49
5
I-49
6
I-49
1
I-49
2
H-26
14
B-19
1
3 4 5 6
2
3
6
2
5
1
4
1
2
3
4
5
6
Type of the
trouble
Control failure.
Chart B
Does not work at all.
Chart A
D08RY00178
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