Opel Frontera UBS. Manual - part 17

00 – 40 SERVICE INFORMATION

1. Defective rotor/piston 

2. Defective bearing (DKS-15CH) 
3. Defective shaft 

1. Defective bearing 
2. Defective clutch
3. Clearance between drive plate

and pulley not standard

1. Defective gasket 
2. Defective rotor/reed valve 
3. Defective trigger valve/suction

valve

1. Defective rotor/piston

2. Defective shaft

3. Rotating parts seized due to

insufficient oil

1. Defective seal
2. Defective O-ring

Replace compressor/cylinder and
shaft assembly
Replace cylinder and shaft assembly
Replace compressor/cylinder and
shaft assembly

Replace magnetic clutch
Replace magnetic clutch
Adjust the clearance or replace
magnetic clutch

Replace compressor/gasket
Replace compressor/valve plate
Replace compressor/suction valve

Replace compressor/cylinder and
shaft assembly
Replace compressor/cylinder and
shaft assembly
Replace compressor

Replace compressor/shaft seal
Replace

Noise from compressor

Noise from magnetic
clutch face

Insufficient cooling

Not rotating

Oil and/or gas leakage

1

2

3

4

5

ITEM

PROBLEM

POSSIBLE CAUSES

CORRECTION

COMPRESSOR TROUBLESHOOTING

SERVICE INFORMATION  00 – 41

I-18

I-23

1

2

3

4

5

6

1

2

6

OFF

1

FAN SW.

2

3

4

OFF

A/C SW.

ON

FAN CONTROL KNOB (FAN SWITCH) AND A/C
SWITCH

INDIVIDUAL INSPECTION

Check for continuity between fan switch and A/C switch
side connector terminals.

2

6 5 4 3

1

3
6

2
5

1
4

<Connector terminal>

I-23

I-18

I-23

I-18

5

A/C SW.

BEZEL
ILLUMI-
NATION

FAN SW.

OFF

1

2

3

4

3 2 6 1

2

5 3 6 4 1

HEATER & A/C, THERMOSTAT, COMPRESSOR,
CONDENSER FAN AND CERAMIC HEATER RELAY

Check for continuity between the relay terminals.

2 – 4 ..... No continuity

(When battery voltage is applied between 1 – 3)

2 – 4 ..... Continuity

2

2

1

1

4

4

3

3

Terminal

No.

SW.
position

DUAL PRESSURE SWITCH

2

1

Disconnect pressure switch connector and check for
continuity between pressure switch side connector
terminals.

00 – 42 SERVICE INFORMATION

TRIPLE PRESSURE SWITCH (W/CONDENSER FAN)

4

3

1

2

1) Disconnect the connector and check for continuity

between pressure switch side connector terminal.

2) Reconnect the connector to activate the A/C switch,

and check to see if there is continuity between the
chassis side connectors and the fan operates. 

[A/C OFF]

[A/C ON]

Terminal No.

Control

Continuity

1 - 2

Magnetic Clutch

Continuity

3 - 4

Condenser Fan

No Continuity

Terminal

Refrigerant Pressure

Continuity Fan

No.

1079

±

98 kPa

No

OFF

(11.0±1.0 kg·cm

2

/ 156±14 psi)

Continuity

3 - 4

1471±98 kPa

Continuity ON

(15.0±1.0 kg·cm

2

/ 213±14 psi)

BLOWER MOTOR

1

2

1) Disconnect the blower motor (B-5) connector from

the blower motor.

2) Connect the battery positive terminal to the No. 1

(NO.2; RHD) terminal of the blower motor and
negative to the No. 2 (NO. 1; RHD).

3) Be sure to check to see if the blower motor operates

correctly. 

Terminal

Normal

SW.

No.

1

2

3

4

6

Operating

position

Resistance

2.4

Ω

0.90

Ω

0.28

Ω

–

1

2

3

4

RESISTOR

1

4

2

6

3

2

Motor

3

6

4

1

4

3

2

(SW.position)

(Connector
terminal)

1

1) Disconnect resistor (I-41) connector.
2) Check for continuity and resistance between the

terminals of the resistor. 

SERVICE INFORMATION  00 – 43

CONDENSER FAN

1

2

THERMO SWITCH (ENGINE)

1

2

1) Disconnect the condenser fan connector (C-75).
2) Connect the battery positive terminal to the No. 1

terminal and negative to No. 2.

3) Be sure to check to see if condenser fan operates

correctly.

With the environmental temperature of the switch set to
the following conditions, check to see if there is any
continuity between the switch side connector terminals.

Ambient

Terminal

Continuity

Temperature

No.

Above 77 – 83

°

C

1 – 2

No Continuity

(170.6–181.4

°

F)

CERAMIC HEATER

1

2

Ceramic heater

Disconnect the ceramic heater connector and check for
continuity between ceramic heater side connector
terminals.

Connector No.

B-48

Terminal

1

2

Continuity