Panel SUZUKI SWIFT 2007 2.G Service Owner's Manual

Downloaded from www.Manualslib.com manuals search engine 7A-4 Heater and Ventilation:
Repair Instructions
HVAC Unit ComponentsS7RS0B7106001
For manual type A/C, refer to “HVAC Unit Components
in Section 7B”.
For automatic type A/C, refer to “HVAC Unit
Components in Section 7B”.
HVAC Unit Removal and InstallationS7RS0B7106002
Removal
1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Remove cowl top panel from vehicle body referring to “Cowl Top Components in Section 9K”.
4) Drain engine coolant, and then disconnect heater hoses (1) from HVAC unit (2).
5) Remove instrument panel from vehicle body referring to “Instrument Panel Removal and
Installation in Section 9C”.
6) Remove nuts (3).
7) Remove HVAC unit from vehicle body.
Installation
Reverse removal procedure noting the following
instructions.
• Be careful not to catch any cable and wiring harness in inappropriate position.
• Adjust control cables of HVAC control unit referring to “HVAC Control Unit Remo val and Installation”.
• Fill engine coolant to radiator.
• Enable air bag system referring to “Enabling Air Bag System in Section 8B”.
Blower Motor Removal and InstallationS7RS0B7106003
Removal
1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Disconnect connector (1) from blower motor (2).
4) Remove blower motor from HVAC unit by removing screws (3).
Installation
Reverse removal procedure noting the following
instruction.
• Enable air bag system referring to “Enabling Air Bag System in Section 8B”.
Blower Motor InspectionS7RS0B7106004
• Check for continuity between two terminals as shown. If there is no continuity, replace blower motor.
3
2
3
1
3I4RS0B710004-01
3
1
2
3
3
I4RS0B710005-01
I4RS0A710006-01

Downloaded from www.Manualslib.com manuals search engine Heater and Ventilation: 7A-5
• Check for operation and current.a. Put blower motor (1) in a soft-jawed vise.
b. Connect battery to blower motor as shown.
c. Check if blower motor operates smoothly without noise.
d. Check if ammeter indicates the specified current. If measured current is out of specification, replace
blower motor.
Blower motor specified current at 12 V
16 A maximum
Blower Motor Resistor Removal and InstallationS7RS0B7106005
Removal
1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Remove glove box from instrument panel.
4) Remove bolts (1) from instrument panel.
5) Remove foot duct (1) from HVAC unit by removing screw (2). 6) Remove connector (1) from blower motor resistor
(2), and then remove blower motor resistor from
HVAC unit by removing screws (3).
Installation
Reverse removal procedure noting the following
instruction.
• Enable air bag system referring to “Enabling Air Bag System in Section 8B”.
Blower Motor Resistor InspectionS7RS0B7106006
Measure each terminal-to-terminal resistance. If
measured resistance is out of specification, replace
blower motor resistor.
Blower motor resistor resistance
“H” – “MH”: Approximately 0.6 Ω at 20 – 25 °C (68 –
77 °F)
“MH” – “ML”: Approximately 1.6 Ω at 20 – 25 °C (68 –
77 °F)
“ML” – “L”: Approximately 3.4 Ω at 20 – 25 °C (68 –
77 °F)
1
I4RS0A710007-01
11I4RS0B710006-01
12I4RS0B710007-01
1
3
23
I4RS0A710010-01
MHL
HMLI4RS0B710024-01

Downloaded from www.Manualslib.com manuals search engine Heater and Ventilation: 7A-7
HVAC Control Unit Removal and InstallationS7RS0B7106009
Removal1) Disconnect negative (–) cable at battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Remove passenger air bag module from instrument panel referring to “Passenger Air Bag (Inflator)
Module Removal and Installation in Section 8B”.
4) Remove radio assembly from instrument panel referring to “Audio Unit Re moval and Installation in
Section 9C”.
5) Remove driver side foot duct (1) from HVAC unit by removing screw (2).
6) Disconnect temperature control cable (1) and air flow control cable (2) from HVAC unit. 7) Remove two connectors from HVAC control unit.
8) Remove HVAC control unit (1) from instrument
panel.
NOTE
Be careful not to damage HVAC control unit
and instrument panel by using rag.

Installation
Reverse removal procedure noting the following
instructions.
• Connect temperature control cable and air flow control
cable of HVAC control unit to links of HVAC unit.
a. For LH steering vehicle, set air flow selector (1) to “DEF” position and temperature selector (2) to
“MAX HOT” position.
For RH steering vehicle, set air flow selector (1) to
“VENT” position and temperature selector (2) to
“MAX COOL” position.
[A]: LH steering vehicle [B]: RH steering vehicle
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I4RS0B710010-01
2
1
1
2
[B] [A]
I4RS0B710011-01
1
I4RS0B710012-01
12I4RS0B710013-01
12I4RS0A710016-01

Downloaded from www.Manualslib.com manuals search engine Heater and Ventilation: 7A-9
Blower Speed Selector InspectionS7RS0B7106010
Check blower speed selector for each terminal to
terminal continuity. If check result does not meet the
following conditions, replace HVAC control unit.
Air Intake Selector InspectionS7RS0B7106011
• Check that there is continuity between terminal (1) and terminal (2) when air intake selector is at fresh
position.
• Check that there is no continuity between terminal (1) and terminal (2) when air intake selector is at
recirculation position.
If check result does not meet the above conditions,
replace HVAC control unit.
Air Intake Control Actuator Removal and
Installation
S7RS0B7106012
Removal
1) Remove instrument panel from vehicle body referring to “Instrum ent Panel Removal and
Installation in Section 9C”.
2) Remove screws (1).
3) Remove air intake control actuator (2) from HVAC unit.
Installation
Reverse removal procedure noting the following
instruction.
• Be sure to insert the linkage pin (1) into the groove (2) of air intake control actuator.
IHMH
GND LML
PositionTerminalI
OFF 1
2
3
4 LMLMHHGND
I4RS0A710019-01
1
2
I5RS0A710001-01
1 1
2
I4RS0A710021-01
1
2
I4RS0A710022-01

Downloaded from www.Manualslib.com manuals search engine 7A-10 Heater and Ventilation:
Air Intake Control Actuator InspectionS7RS0B7106013
Check air intake control actuator as follows:1) Using service wire, connect battery positive terminal to “a” terminal and battery negative terminal to
terminal “b”. And, check if air intake selector link
operates smoothly and it st ops at fresh position (1).
2) Using service wire, connect battery positive terminal to “a” terminal and battery negative terminal to
terminal “c”. And, check if air intake selector link
operates smoothly and it stops at recirculation
position (2).
If malfunction is found, replace air intake control
actuator.
Center Ventilation Louver Removal and
Installation
S7RS0B7106014
Removal
1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Remove passenger air bag module from instrument panel referring to “Passenger Air Bag (Inflator)
Module Removal and Installation in Section 8B”.
4) Remove radio assembly from instrument panel referring to “Audio Unit Re moval and Installation in
Section 9C”.
5) Remove center ventilation louver (1) with garnish (2) from instrument panel, and then disconnect
connector from hazard switch.
NOTE
Garnish is fitted to in strument panel with six
clips. When removing garnish from
instrument panel, be careful not to break
them.

6) Separate center ventilation louver and garnish.
Installation
Reverse removal procedure.
a
b
c
1
2
I4RS0A710023-01
1
2
I4RS0B710017-01

Downloaded from www.Manualslib.com manuals search engine Heater and Ventilation: 7A-11
Side Ventilation Louver Removal and
Installation
S7RS0B7106015
Driver side ventilation louver
Removal1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Remove steering column hol e cover from instrument
panel.
4) Remove combination meter cluster panel from instrument panel, and then disconnect connectors
from front fog lamp switch, illumination cancel switch
and headlight leveling switch (if equipped) of
combination meter cluster panel.
5) Separate driver side ventilation louver (1) and combination meter cluster (2).
Installation
Reverse removal procedure noting the following
instruction.
• Driver side ventilation louver is fitted to combination meter cluster panel with four clips (1). When installing
driver side ventilation louv er to combination meter
cluster panel, position the smallest clip to the top. Passenger side ventilation louver
Removal
1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Remove glove box from instrument panel.
4) Remove passenger air bag module from instrument panel referring to “Passenger Air Bag (Inflator)
Module Removal and Installation in Section 8B”.
5) Separate passenger side ventilation louver (1) and passenger air bag module (2).
Installation
Reverse removal procedure noting the following
instruction.
• Passenger side ventilation louver is fitted to passenger air bag module with four clips (1). When
installing passenger side ventilation louver to
passenger air bag module, position the smallest clip
to the top.
2
1
I4RS0B710018-01
1
I4RS0B710019-01
2
1
I4RS0B710020-01
1I4RS0B710021-01

Downloaded from www.Manualslib.com manuals search engine 7A-12 Heater and Ventilation:
HVAC Air Filter Removal and Installation (If
Equipped)
S7RS0B7106016
Removal1) Remove glove box from instrument panel.
2) Remove air filter cover (1) from HVAC unit while
releasing lock of both sides of air filter cover.
3) Pull out air filter from HVAC unit.
Installation
Reverse removal procedure noting the following
instructions.
• Position air filter by directing its arrow mark to the upward.
• Fit air filter cover (1) to HVAC unit so as not to stick air
filter (2) by air filter cove r’s claw (3). Otherwise, air
filter is deformed and loses its functionality.
HVAC Air Filter Inspection (If Equipped)S7RS0B7106017
Check that filter is not excessively dirty, damage or oily,
clean filter with compressed air from air outlet side of
filter. If abnormality is found, replace filter with new one.
1I5RS0C710001-01
I4RS0B710023-01
1
3
2
1
3I4RS0A710031-01
I4RS0A710032-01

Downloaded from www.Manualslib.com manuals search engine 7B-24 Air Conditioning System: Manual Type
HVAC Unit Removal and InstallationS7RS0B7216006
Removal1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Recover refrigerant from A/C system with recovery and recycling equipment referring to “Recovery” in
“Operation Procedure for Refrigerant Charge”.
4) Remove cowl top panel referring to “Cowl Top Components in Section 9K”.
5) Drain engine coolant, and then disconnect heater hoses (1) from HVAC unit (2).
6) Remove instrument panel from vehicle body referring to “Audio Unit Re moval and Installation in
Section 9C”.
7) Loosen suction hose and liquid pipe bolt (4).
8) Remove nuts (3).
9) Remove HVAC unit from vehicle body. Installation
Reverse removal procedure noting the following
instructions.
• Replenish specified amount of compressor oil to
compressor suction side referring to “Replenishing
Compressor Oil” in “Operation Procedure for
Refrigerant Charge”.
• Install the padding (1) to the installation hole uniformly.
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
• Adjust control cables referr ing to “HVAC Control Unit
Removal and Installati on in Section 7A”.
• Enable air bag system referring to “Enabling Air Bag System in Section 8B”.
Evaporator InspectionS7RS0B7216007
Check the followings.
• Clog of A/C evaporator fins.If any clogs are found, A/C evaporator fins should be
washed with water, and then should be dried with
compressed air.
• A/C evaporator fins for leakage and breakage. If any defects are found, repair or replace A/C
evaporator.
• A/C evaporator fittings for leakage. If any defects are found, repair or replace A/C
evaporator.
2. Blower upper case 8. Temperature control door assembly 14. Temperature control lever 20. Packing
3. Air intake control actuator 9. Blower motor resistor 15. Airflow control lever21. Filter cover (if equipped)
4. HVAC Air filter (if equipped) 10. Blower lower case 16. Evaporator22. Drain hose
5. Heater unit upper case 11. Blower motor 17. O-ring23. Cable lock clamp
6. Foot duct 12. Heater unit lower case 18. Expansion valve: Do not reuse.
3
2
3
3
1
4
I4RS0B720009-01
1
I4RS0B720010-01

Downloaded from www.Manualslib.com manuals search engine 7B-42 Air Conditioning System: Automatic Type
Abnormal Noise Symptom Diagnosis of A/C
System
S7RS0B7224002
Refer to “Abnormal Noise Symptom Diagnosis of A/C
System”.
DTC CheckS7RS0B7224003
Using SUZUKI Scan Tool1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector (DLC) (1) located on underside of instrument panel
at driver’s seat side.
Special tool
(A): SUZUKI scan tool 3) Light over sunload sensor vertically with an
incandescent lamp of approximately 100 W apart
from about 100 mm (3.94 in.).
NOTE
If sunload sensor is not lighted over with an
incandescent lamp, DTC B1504 is detected
even though there is not any malfunction.

4) Turn ignition switch to ON position.
5) Read DTC displayed on SUZUKI scan tool.
NOTE
To know how to use SUZUKI scan tool, refer
to operator’s manual for SUZUKI scan tool.

6) After completing the check, turn ignition switch to
OFF position and disconnect SUZUKI scan tool from
data link connector (DLC).
Cool air does not come
out only at high speed
Excessive amount of refrigerant
Check the amount of refrigerant.
A/C evaporator frosted Check A/C evaporator and evaporator
temperature sensor referring to “Evaporator
Inspection” and “Evaporator Thermistor
(Evaporator Temperature Sensor) Inspection”.
Insufficient air flow of
cooled air A/C evaporator clogged or frosted
Check A/C evaporator and evaporator
temperature sensor referring to “Evaporator
Inspection” and “Evaporator Thermistor
(Evaporator Temperature Sensor) Inspection”.
Air leaking from HVAC unit or air duct Repair as necessary.
Blower motor faulty Check blower motor referring to “Blower Motor
Inspection in Section 7A”.
Wiring or grounding faulty Repair as necessary.
Condition Possible cause Correction / Reference Item
(A)
1
I5RS0A722005-01

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-43
Not Using SUZUKI Scan Tool
Current DTC mode1) Light over sunload sensor vertically with an incandescent lamp of approximately 100 W apart
from about 100 mm (3.94 in.).
NOTE
If sunload sensor is not lighted over with an
incandescent lamp, DTC B1504 is detected
as current DTC even though there is not any
malfunction.

2) Start engine.
3) Wait for 20 seconds or more after engine started and set temperature selector to 25 °C (77 °F).
4) Push AUTO switch (1) and defroster switch (2) at the same time.
5) Check DTC (3).
NOTE
• DTC flashes for 15 seconds. After that, the normal display is rest ored. To have DTC
displayed again, repeat the procedure from
Step 4.
• When more than two DTCs are detected, only DTC having the highest priority is
indicated. Therefore, after troubleshooting
the malfunction, DTC check has to be
performed again to see if any other DTC(s)
is detected.

History DTC mode
1) Turn ignition switch to ON position.
2) Set temperature selector to 25 °C (77 °F).
3) Push AUTO switch (1) and MODE (air flow) selector
(2) at the same time.
4) Check DTC (4).
NOTE
Each DTC item is displayed (lights up) for 4
seconds.
When HVAC control module detects 2 or
more DTC items, each one is displayed once
starting from the one of higher priority order.
After all DTC items being detected have been
displayed, “Ed” (3) appears on display of
HVAC control module and normal display is
restored. “Ed” means that all DTC items have
been displayed.

DTC ClearanceS7RS0B7224004
NOTE
Only history DTC(s) can be cleared. Current
DTC(s) can not be cleared unless the
problem(s) is fixed.

Using SUZUKI Scan tool
1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector (DLC) (1) located on underside of instrument panel
at driver’s seat side.
Special tool
(A): SUZUKI scan tool1
2
3
I5RS0A722006-02
1
2 34
I5RS0A722007-02
(A)
1
I5RS0A722005-01