Opel Frontera UE. Manual - part 1255

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–141

Duct Sensor

1. Disconnect the duct sensor connector (C–64).

2. Measure resistance between the duct sensor side

terminal No.C64–1 and No.C64–2.

C01R100006

Ambient Sensor

1. Disconnect the connector (C–8) on the ambient

sensor.

2. Measure resistance between the ambient sensor

side     terminals. 

C01RX012

SECTION

1A–142

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Power Transistor 

1. Remove the power transistor connector (C–66) from

the evaporator     assembly. 

2. Check the conduction between the power transistor

side     terminals.

C01RX015

MAX HI Relay

1. Remove the MAX – HI relay connector (C–67) from

the blower     assembly.

2. Check the conduction between the MAX – HI relay

side     terminals.

C01R100001

In Car Sensor

1. Turn on the ignition switch (the engine is started).

Start the air conditioner     in “Auto".

2. Make sure that the interior sensor suctions cigarette

smokes and     such.

In Car Sensor

1. Dismount the in car sensor from the automatic

heater/air     conditioner control unit.  Connect (+)
end and (-) end of the battery to the aspirator motor
side terminals No.I4–1 and No.I4–2, respectively,
then check if the motor     runs normally.

C01RW020

SECTION

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–143

Thermostat (X-8), Condenser Fan (X-11)
Relay

1. Disconnect relays and check for continuity and

resistance between relay terminals.

• For handling of these relays, refer to 

Heater Relay

in this section

.

C01R100002

Heater (X–1), Compressor (X–2) Relay

1. Disconnect relays and check for continuity and

resistance between relay     terminals.

• For handling of these relays, refer to Heater Relay

in this     section.

C01R200011

Condenser Fan

1. Disconnect the condenser fan connector.

2. Connect the battery positive terminal to the

condenser fan side connector     terminal No.C24-2
and negative to the No.C24-1.

3. Check that condenser fan is rotating correctly.

875RW010

Triple Pressure Switch (V6, A/T)

1. Disconnect the connector and check for continuity

between pressure switch     side connector terminals
(1) and (2).

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

and check to see if there is continuity between the
chassis side connector terminal (3) and (4) and the
fan operates.

875RX009

SECTION

1A–144

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Resistor

1. Disconnect the resistor connector (C-73) from the

heater unit assembly.

2. Check the continuity and resistance value between

the resistor terminals.

C01R100004

Thermo Unit

1. Submerge the sensor portion of the thermo unit in

the oil.

2. Heat the oil.

3. Check the resistance valve of the unit.

C01R100007

SECTION