Hvac Unit Removal And Installation; Temperature Control Actuator Removal And Installation; Temperature Control Actuator And Its Circuit Inspection - Suzuki SX4 Service Manual

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7B-78 Air Conditioning System: Automatic Type

HVAC Unit Removal and Installation

Refer to "HVAC Unit Removal and Installation: Manual
Type".
Temperature Control Actuator Removal and
Installation
Removal
1) Disconnect negative (–) cable at battery.
2) Remove steering column hole cover from instrument
panel.
3) Remove driver side foot duct from HVAC unit.
4) Disconnect temperature control actuator connector
(1).
5) Remove temperature control actuator (2) from HVAC
unit by removing screws (3).
2
3
Installation
Reverse removal procedure noting the following
instructions.
• Before installing actuator, make sure that position of
actuator lever is in between "MAX HOT" position and
"MAX COOL" position.
• Be sure to insert pin (1) of temperature control
actuator into the groove (2) of link.
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Temperature Control Actuator and Its Circuit
Inspection
1) Remove temperature control actuator from HVAC
unit referring to "Temperature Control Actuator
Removal and Installation: Automatic Type".
2) Connect connector to temperature control actuator.
3) Set temperature selector to "MAX COOL" position
with ignition switch turned ON.
4) Connect voltage meter between terminal "2" and
body ground.
5) Turn temperature selector to "MAX HOT" position.
6) Measure output voltage variation while temperature
control actuator is operated from "MAX COOL"
position (B) to "MAX HOT" position (A) as following
specification.
If measure voltage is out of specification or does not
vary linearly as the shown in graph, check related
wire circuit and HVAC control module. If wire circuits
and HVAC control module are OK, go to next step.
Temperature control actuator output voltage
0.48 – 4.53V (linear variation as following graph)
B
A
M
(V)
5.00
4.53
0.48
[A]: MAX HOT
[B]: MAX COOL
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[B]
[A]
[C]
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[C]: Actuator lever position

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