Opel Frontera UE. Manual - part 614

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–13

Individual Inspection

Blower Motor

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

the blower motor.

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

terminal of the blower motor and the negative to the
No. 1.

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

correctly.

873RW008

Resistor

1. Disconnect the resistor (B-3) connector.

2. Check for continuity and resistance between the

terminals of the resistor.

840RX013

EndOFCallout

Legend

(1) Resister Assembly
(2) Connector Terminal (Resister Side)
(3) Position Switch

1A–14

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Fan Control Lever (Fan Switch)

1. Check for continuity between the terminals of the

fan switch.

D08RX157

EndOFCallout

Heater Relay

1. Disconnect the heater relay (X-6).

• When removing the connector for relay, unfasten

the tank lock of the connector by using a
screwdriver, then pull the relay (1) out.

825RX046

2. Check for continuity between the heater relay (X-6)

terminals.

901RX071

Legend

(1) Control Lever Connector Terminal (Control 

Lever Side)

(2) Position Switch

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–15

Heater Unit

Heater Unit and Associated Parts

840RY00046

EndOFCallout

Removal

1. Disconnect the battery ground cable.

2. Drain the engine coolant.

3. Discharge and recover refrigerant (with air

conditioning).

• Refer to Refrigerant Recovery in this section.

4. Remove the Instrument panel assembly.

• Refer to Instrument Panel Assembly in Body and

Accessories section.

5. Remove instrument panel stay.

6. Remove center ventilation duct and side defroster.

7. Disconnect resistor connector.

8. Remove evaporator assembly.

• Refer to Evaporator Assembly in this section.

9. Remove ventilation lower duct.

10. Remove rear heater duct.

• Remove foot rest, carpet and 3 clips.

11. Remove heater unit assembly.

• Disconnect heater hoses at heater unit.

Legend

(1) Instrument Panel Assembly
(2) Resistor Connector
(3) Heater Hose
(4) Heater Unit Assembly

(5) Evaporator Assembly
(6) Rear Heater Duct
(7) Ventilation Lower Duct
(8) Instrument Panel Stay
(9) Center Ventilation Duct and Side Defroster

1A–16

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Installation

To install, follow the removal steps in the reverse order,
noting the following points:

1. When handling the PCM and the control unit, be

careful not to make any improper connection of the
connectors.

2. Adjust the control cables.

• Refer to Control Lever Assembly in this section.

3. When installing the heater unit, defroster nozzle and

center vent duct, be sure that the proper seal is
made, without any gap between them.

4. After putting engine coolant in remove the air well

and confirm the quantity of coolant.

Heater Core and / or Mode Door

Disassembled View

860RX002

EndOFCallout

Removal

1. Disconnect the battery ground cable.

2. Drain the engine coolant.

Legend

(1) Heater Unit
(2) Case (Temperature Control)
(3) Heater Core

(4) Case (Mode Control)
(5) Duct
(6) Mode Door