Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 37

HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–119

Power Transistor 

1. Remove the power transistor connector (C–34) from

the evaporator assembly. 

2. Check the conduction between the power transistor

side terminals.

C01R200006

MAX HI Relay

1. Remove the MAX – HI relay connector (C–35) from

the blower assembly.

2. Check the conduction between the MAX – HI relay

side terminals.

C01R200011

In Car Sensor

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

Start the air conditioner in “Auto”.

2. Make sure that the in car 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.I17–1 and No.I17–2, respectively, then
check if the motor runs normally.

C01R200010

1A–120 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Heater (X–1) And Compressor (X–2) Relay

1. Disconnect relays and check for continuity and

resistance between relay terminals.

D

For handling of these relays, refer to 

Heater Relay

in this section.

C01R200011

Thermostat (X–8) Relay

1. Disconnect relays and check for continuity and

resistance between relay terminals.

D

For handling of these relays, refer to 

Heater Relay

in this section.

C01R200012

Triple Pressure Switch

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.

875R200020

HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–121

On-Vehicle Service

Power Transistor

874R200014

Legend

(1) Glove Box
(2) MAX HI Relay
(3) Power Transistor Connector
(4) Power Transistor

Removal

1. Remove the glove box.
2. Remove the MAX–HI relay.
3. Disconnect the power transistor connector.
4. Remove the power transistor.

Installation

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

Automatic Heater/Air Conditioner
Control Unit

865R200007

Legend

(1) Display
(2) Audio & Switch Assembly
(3) Automatic Air Conditioner Control Unit
(4) Knee Pad (RH)
(5) Center Cluster
(6) Center Cluster Upper
(7) Knee Pad (LH)

Removal

1. Disconnect the battery ground cable.
2. Remove the knee pad (R/LH).
3. Remove the center cluster upper.
4. Remove the center cluster.

D

Refer to 

Instrument Panel Assembly in Body

Stractur section.

5. Disconnnect the six connectors.
6. Remove the automatic air conditioner control unit.

Installation

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

1A–122 HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

In Car Sensor

865R200001

Legend

(1) Meter Cluster
(2) In Car Sensor

Removal

1. Disconnect the battery ground cable.
2. Remove the meter cluster.

D

Refer to 

Instrument Panel Assembly in Body

Structure section.

3. Remove the in car sensor.

Installation

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

Ambient Sensor

875R200018

Legend

(1) Ambient Sensor
(2) Ambient Sensor Connector
(3) Horn (LH)

Removal

1. Disconnect the battery ground cable.
2. Remove the horn (LH).
3. Disconnect the ambient sensor connector.
4. Remove the ambient sensor.

Installation

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