Opel Frontera UE. Manual - part 645

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–137

Ambient Sensor

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

sensor.

2. Measure resistance between the ambient sensor

side     terminals. 

C01RX012

Power Transistor 

1. Remove the power transistor connector (B–35) 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 (B–25) from

the blower     assembly.

2. Check the conduction between the MAX – HI relay

side     terminals.

C01RX014

In Car Sensor

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

Start the air conditioner     in “Full Auto".

2. Make sure that the interior sensor suctions cigarette

smokes and     such.

1A–138

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

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

Heater (X–6), Thermostat (X–5), Condenser
Fan     (X–9) And Compressor (X–4) 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.

901RX071

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

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–139

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

1A–140

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

On-Vehicle Service

Power Transistor

874RY00029

EndOFCallout

Removal

1. Remove glove box.

2. Remove passenger knee bolster reinforcement.

3. Disconnect the power transistor connector.

4. Remove power transistor.

Installation

To install, follow the removal step in the reverse order.

Automatic Heater/Air Conditioner
Control Unit

865RW016

EndOFCallout

Removal

1. Disconnect the battery ground cable.

2. Remove instrument lower cover.

3. Remove meter cluster assembly.

• Refer to Instrument Panel Assembly in Body

Structure section.

4. Remove the automatic heater/air conditioner control

unit attaching screws.

5. Pull the automatic heater/air conditioner unit out and

disconnect the connectors.

Installation

To install, follow the removal step in the reverse order.

Legend

(1) Power Transistor
(2) Passenger knee bolster Reinforcement
(3) Power Transistor Connector
(4) Glove Box

Legend

(1) Connector
(2) Automatic Air Control Unit
(3) Meter Cluster Assembly
(4) Instrument Center Cluster
(5) Instrument Lower Cover