2006 SUZUKI SWIFT Noise

Downloaded from www.Manualslib.com manuals search engine Steering General Diagnosis: 6A-2
Diagnostic Information and Procedures
Steering Symptom DiagnosisS7RS0B6104001
ConditionPossible cause Correction / Reference Item
Hard steering Tire not adequately inflated Inflate tires to proper pressure.
Malfunction of power steering system Check and correct.
Bind in tie-rod end ball studs or lower
ball joints Replace tie-rod end or front suspension arm.
Disturbed front wheel alignment Check and adjust front wheel alignment.
Bind in steering column Repair or replace steering column.
Rack and pinion adjustment Check and adjustment rack and pinion torque.
Too much play in steering Wheel bearings worn Replace wheel bearing.
Loose steering gear case bolts Tighten gear case bolts.
Faulty steering gear case assembly Replace steering gear case assembly.
Worn steering shaft joints Replace joint.
Worn tie-rod ends or tie-rod inside ball
joints Replace tie-rod end or tie-rod.
Worn lower ball joints Replace front suspension control arm.
Rack and pinion adjustment Check and adjustment rack and pinion torque.
Poor return ability Bind in tie-rod end ball studs Replace tie-rod end.
Bind in ball joints Replace front suspension control arm.
Bind in steering column Repair or replace steering column.
Disturbed front end alignment Check and adjust front end alignment.
Faulty steering gear case assembly Replace steering gear case assembly.
Tires not adequately inflated Adjust tire pressure.
Rack and pinion adjustment Check and adjustment rack and pinion torque.
Rack and pinion noise
(Rattle or chuckle) Loose steering gear case bolts
Tighten steering gear case bolts.
Rack and pinion adjustment Check and adjustment rack and pinion torque.
Faulty steering gear case assembly Replace steering gear case assembly.
Broken or other wise damaged wheel
bearing(s) Replace wheel bearing(s).
Wander or poor steering
stability Mismatched or uneven tires
Replace or inflate tires to proper pressure.
Loosen ball joints and tie-rod ends Replace suspension control arm or tie-rod end.
Faulty struts or mountings Replace strut or repair mounting.
Loose stabilizer bar Tighten or replace stabilizer bar or bush.
Broken or sagging springs Replace spring.
Rack and pinion adjustment Check and adjustment rack and pinion torque.
Disturbed front wheel alignment Check and adjust front wheel alignment.
Faulty steering gear case assembly Replace steering gear case assembly.
Erratic steering when
braking Worn wheel bearing(s)
Replace wheel bearing(s).
Broken or sagging spring(s) Replace coil spring(s).
Wheel tires are inflated unequally Inflate tires to proper pressure.
Disturbed front wheel alignment Check and adjust front wheel alignment.
Brakes not working in unison Check and repair brake system.
Leaking caliper Repair or replace caliper.
Warped discs Replace brake disc.
Badly worn brake pads Replace brake pads.

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-13
Serial Data Link Circuit CheckS7RS0B6304009
CAUTION!
Be sure to perform “EPS System Check” before starting “Troubleshooting”.

Wiring DiagramVehicle pulls to one side
during straight driving
Poor performance of torque sensor
Check torque sensor referring to “Torque
Sensor and Its Circuit Inspection”.
Steering gear case assembly faulty Replace.
Poor recovery after turns Poor performance of torque sensor Check torque sensor referring to “Torque
Sensor and Its Circuit Inspection”.
Steering column faulty Replace.
Abnormal noise P/S motor (built in steering gear case
assembly) malfunction Replace steering gear case assembly.
No idle up P/S control module faulty Check P/S control module referring to
“Inspection of P/S Control Module and Its
Circuits”.
Condition Possible cause Correction / Reference Item
MBLK
RED
E52-11 E51-1
E51-2PPL/WHT
[A ]
12
3
4 5 67
89
11
10
12 13
141516
17 18 19 2010 9 8 7654 3 21
16 15 14 13 12 11
26 25 24 2322 21 20 19 18 17
32 31 30 29 28 27
[C]
8
79
12V
[B ]
11
12
GRY
LT GRN
/BLK
E52-1
E52-5
E49-1
GRNGRNWHTBLK
WHY
G28-25G28-31
RED/BLK
10
3
4
4
5 6
4
4
1 2
4
E49-2BLK
I7RS0B630003-01
[A]: Connector “E52” (viewed from harness side) 3. Junction block assembly 8. P/S control module
[B]: Connector “E49” (viewed from harness side) 4. Fuse 9. T o ECM, BCM, Air bag SDM control module and ABS control
module assembly
[C]: Connector “G28” (viewed from harness side) 5. Comb ination meter 10. Individual circuit fuse box No.1
1. Main fuse box 6. “EPS” warning light 11. Serial data circuit
2. Ignition switch 7. Date link connector (DLC)

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-43
Installation1) Mount steering gear case (1) to front suspension frame (2) and tighten gear case mounting No.1 bolts
(3), No.2 bolts (4) and No .3 bolts (5) to specified
torque.
Tightening torque
Steering gear case mounting No.1 bolt (a): 55
N·m (5.5 kgf-m, 40.0 lb-ft)
Steering gear case mounting No.2 bolt (b): 55
N·m (5.5 kgf-m, 40.0 lb-ft)
Steering gear case mounting No.3 bolt (c): 40
N·m (4.0 kgf-m, 29.0 lb-ft)
2) Install earth cable (6) as shown in figure. Tightening torque
Earth cable bolt (d): 4.5 N·m (0.45 kgf-m, 3.5 lb-
ft)
3) Install grommet (1) whose projection (2) orients vehicle forward.
4) Install front suspension frame with steering gear case assembly referring to “Front Suspension
Frame, Stabilizer Bar and/or Bushings Removal and
Installation in Section 2B”.Steering Rack Boot InspectionS7RS0B6306007
Hoist vehicle.
Inspect each boot for tear. A torn boot allows entry of
dust and water which can cause wear to steering rack
and pinion to produce noise as well as rust to result in
malfunction of steering system.
Even if boot tear is small, replace with new one.
Also, check each boot for dent. If there is a dent, keep
boot in most compressed st ate for some seconds to
correct dent.
Boots should be visually inspected for any damage, dent
and tear during every periodical inspection at specified
intervals and whenever vehicle is hoisted for any other
purpose.
Tie-Rod / Rack Boot Removal and InstallationS7RS0B6306008
Removal
1) Remove steering gear case assembly referring to
“Steering Gear Case Assembly Removal and
Installation”.
2) For ease of adjustment after installation, make marking (1) of tie-rod end lock nut position of tie-rod
thread.
3) Loosen tie-rod end lock nut and remove tie-rod end.
4) Remove boot band (2) and clip (1).
5) Remove boot from tie-rod.
F: Vehicle forward
1 2
3, (a) 4, (b)
6, (d)
5, (c)
I6RS0C630019-02
12
F
I6RS0C630020-01
I2RH01630012-01
I4RS0A630044-01
IYSQ01630034-01

Downloaded from www.Manualslib.com manuals search engine Table of Contents 7- i
7
Section 7
CONTENTS
HVAC
Precautions ................................................. 7-1
Precautions............................................................. 7-1
Precautions on HVAC ........................................... 7-1
Heater and Ventilation.... ......................... 7A-1
General Description ............................................. 7A-1
Heater and Ventilation Construction ................... 7A-1
Schematic and Routing Diagram ........................ 7A-2 Heater and Ventilation Wiring Circuit Diagram .... 7A-2
Diagnostic Information and Procedures ............ 7A-3 Heater and Ventilation Symptom Diagnosis........ 7A-3
Repair Instructions .............................................. 7A-4 HVAC Unit Components ..................................... 7A-4
HVAC Unit Removal and Installation .................. 7A-4
Blower Motor Removal and Installation............... 7A-4
Blower Motor Inspection ..................................... 7A-4
Blower Motor Resistor Removal and Installation ......................................................... 7A-5
Blower Motor Resistor Inspection ....................... 7A-5
Blower Motor Relay Inspection ........................... 7A-6
HVAC Control Unit Components ......................... 7A-6
HVAC Control Unit Remova l and Installation ...... 7A-7
Blower Speed Selector In spection ...................... 7A-9
Air Intake Selector Inspec tion ............................. 7A-9
Air Intake Control Actuator Removal and Installation ......................................................... 7A-9
Air Intake Control Actuator Inspection .............. 7A-10
Center Ventilation Louver Removal and Installation ....................................................... 7A-10
Side Ventilation Louver Removal and Installation ....................................................... 7A-11
HVAC Air Filter Removal and Installation (If Equipped)........................................................ 7A-12
HVAC Air Filter Inspection (If Equipped) ........... 7A-12
Air Conditioning System... ...................... 7B-1
Manual Type ............................................................ 7B-1
Precautions........................................................... 7B-1A/C System Caution ............................................ 7B-1
Precautions on Servicing A/C System ................ 7B-1
General Description ............................................. 7B-3 Refrigerant Type Identifica tion ............................ 7B-3
Sub-Cool A/C System Description ...................... 7B-4
A/C Operation Description .................................. 7B-4 Schematic and Routing Diagram ........................7B-5
Major Components of A/C System ...................... 7B-5
A/C System Wiring Diagram ............................... 7B-6
Diagnostic Information and Procedures ............7B-7 A/C System Symptom Diagnosis ........................ 7B-7
Abnormal Noise Sympto m Diagnosis of A/C
System .............................................................. 7B-9
A/C System Performance Inspection ................ 7B-10
A/C System Inspection at ECM ......................... 7B-15
Repair Instructions ........... .................................7B-16
Operation Procedure for Re frigerant Charge .... 7B-16
Condenser Assembly On-Vehicle Inspection .... 7B-21
Condenser Assembly Removal and Installation ....................................................... 7B-21
Receiver/Dryer Removal and Installation .......... 7B-22
HVAC Unit Components ................................... 7B-23
HVAC Unit Removal and In stallation ................ 7B-24
Evaporator Inspection ....................................... 7B-24
Evaporator Thermistor (Evaporator Temperature Sensor) Removal and
Installation ....................................................... 7B-25
Evaporator Thermistor (Evaporator Temperature Sensor) Inspec tion..................... 7B-25
Expansion Valve Removal and Installation ....... 7B-26
Expansion Valve Inspection .............................. 7B-26
A/C Refrigerant Pressure Sensor and Its Circuit Inspection............................................. 7B-26
A/C Refrigerant Pressu re Sensor Removal
and Installation ................................................ 7B-26
A/C Switch Inspection ....................................... 7B-27
Compressor Relay Inspection ........................... 7B-27
Compressor Drive Belt Inspection and Adjustment ...................................................... 7B-27
Compressor Drive Belt Removal and Installation ....................................................... 7B-28
Compressor Assembly Removal and Installation ....................................................... 7B-28
Compressor Assembly Components................. 7B-29
Magnet Clutch Inspection.................................. 7B-29
Magnet Clutch Removal and Installation........... 7B-29
Relief Valve Inspection...................................... 7B-31
Relief Valve Removal and Installation............... 7B-32
Specifications .................... .................................7B-32
Tightening Torque Specifications ...................... 7B-32
Special Tools and Equipmen t ...........................7B-33

Downloaded from www.Manualslib.com manuals search engine 7-ii Table of Contents
Recommended Service Material ....................... 7B-33
Special Tool ...................................................... 7B-33
Automatic Type .................... .................................7B-34
Precautions.........................................................7B-34 A/C System Caution .......................................... 7B-34
Precautions in Diagnosing Trouble ................... 7B-34
Precautions on Servicing A/C System .............. 7B-34
General Description .......... .................................7B-34
Auto A/C System Descript ion ............................ 7B-34
HVAC Control Module Operation Description ... 7B-36
Refrigerant Type Identifica tion .......................... 7B-36
Sub-Cool A/C System Description .................... 7B-36
A/C Operation Description ................................ 7B-36
On-Board Diagnostic System Description ......... 7B-37
Schematic and Routing Diagram ......................7B-37 Major Components of A/C System .................... 7B-37
A/C System Wiring Diagra m ............................. 7B-38
Diagnostic Information and Procedures ..........7B-39 A/C System Symptom Diagnosis ...................... 7B-39
Abnormal Noise Sympto m Diagnosis of A/C
System ............................................................ 7B-42
DTC Check........................................................ 7B-42
DTC Clearance ................................................. 7B-43
DTC Table ......................................................... 7B-44
Fail-Safe Table ................. ................................. 7B-45
Scan Tool Data ................................................. 7B-46
Air Conditioning System Check......................... 7B-47
Visual Inspection ............................................... 7B-49
DTC B1502: Inside Air Temperature Sensor and/or Its Circuit Malfunction .......................... 7B-49
DTC B1503: A/C Evaporator Air Temperature Sensor and/or Its Circuit Malfunction .............. 7B-50
DTC B1504: Sunload Sensor and/or Its Circuit Malfunction ......... ................................. 7B-52
DTC B1511: Temperature Control Actuator (Position Sensor) and/or Its Circuit
Malfunction ...................................................... 7B-53
DTC B1512: Air flow Control Actuator (Position Sensor) and/or Its Circuit
Malfunction ...................................................... 7B-55
DTC B1513: Temperature Control Actuator and/or Its Circuit Malfunction .......................... 7B-57
DTC B1514: Air Flow Co ntrol Actuator and/or
Its Circuit Malfunction ...................................... 7B-60
DTC B1541: HVAC Control Module Back-Up Power Supply Malfunction .............................. 7B-62
DTC B1546: A/C Refrigerant Pressure Malfunction ...................................................... 7B-63
DTC B1551: Serial Communication Circuit Malfunction ...................................................... 7B-63
DTC B1552: Serial Communication Signal Malfunction ...................................................... 7B-64
DTC B1553: CAN Communication Signal Malfunction ...................................................... 7B-65
DTC B1557: Vehicle Speed Sensor Signal Malfunction ...................................................... 7B-65
DTC B1561: Engine Coolant Temperature Sensor Signal Malfunctio n .............................. 7B-66 DTC B1562: Outside Air Temperature Sensor
Signal Malfunction ........................................... 7B-66
DTC B1563: A/C Refr igerant Pressure
Sensor Signal Malfunction .............................. 7B-66
Inspection of HVAC Control Module and Its Circuit .............................................................. 7B-67
A/C System Performance Inspection ................ 7B-70
A/C System Inspection at ECM ......................... 7B-70
Repair Instructions ............ ................................7B-71
Operation Procedure for Refrigerant Charge .... 7B-71
HVAC Unit Components ................................... 7B-72
HVAC Unit Removal and In stallation ................ 7B-73
Temperature Control Actuator Removal and Installation ....................................................... 7B-73
Temperature Control Actuat or Inspection ......... 7B-73
Air Flow Control Actuator Removal and Installation ....................................................... 7B-74
Air Flow Control Actuator Inspection ................. 7B-74
Air Intake Control Actuator Removal and Installation ....................................................... 7B-75
Air Intake Control Actuator Inspection............... 7B-75
Actuator Linkage Inspection .............................. 7B-76
Blower Motor Controller Removal and Installation ....................................................... 7B-76
Blower Motor Controller Inspection ................... 7B-76
HVAC Control Module Removal and Installation ....................................................... 7B-77
Sunload Sensor Removal and Installation ........ 7B-77
Sunload Sensor Inspection ............................... 7B-77
Outside Air Temperature Sensor Removal and Installation ................................................ 7B-77
Outside Air Temperature Sensor Inspection ..... 7B-77
Inside Air Temperature Sensor Removal and Installation ....................................................... 7B-78
Inside Air Temperature Sens or Inspection ........ 7B-78
Condenser Assembly On-Vehicle Inspection .... 7B-78
Condenser Assembly Removal and Installation ....................................................... 7B-78
Receiver/Dryer Removal and Installation .......... 7B-78
Evaporator Inspection ....................................... 7B-78
Evaporator Temperature Sensor Removal and Installation ................................................ 7B-78
Evaporator Temperature Se nsor Inspection ..... 7B-78
Expansion Valve Removal an d Installation ....... 7B-78
Expansion Valve Inspection .............................. 7B-78
A/C Refrigerant Pressure Sensor and Its Circuit Inspection............................................. 7B-78
A/C Refrigerant Pressu re Sensor Removal
and Installation ................................................ 7B-78
Compressor Relay Inspection .
.......................... 7B-78
Compressor Drive Belt Inspection and Adjustment ...................................................... 7B-78
Compressor Drive Belt Removal and Installation ....................................................... 7B-79
Compressor Assembly Removal and Installation ....................................................... 7B-79
Compressor Assembly Components................. 7B-79
Magnet Clutch Removal and Installation........... 7B-79
Magnet Clutch Inspection.................................. 7B-79
Relief Valve Inspection...................................... 7B-79

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 Air Conditioning System: Manual Type 7B-9
Abnormal Noise Symptom Diagnosis of A/C SystemS7RS0B7214002
Abnormal Noise from Compressor
Abnormal Noise from Magnetic Clutch
Abnormal Noise from Tubing
Abnormal Noise from Condenser Assembly
Abnormal Noise from Crankshaft PulleyInsufficient airflow of
cooled air
A/C evaporator clogged or frosted
Check A/C evaporator and evaporator
thermistor (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
Condition
Possible cause Correction / Reference Item
During compressor
operation, a rumbling
noise is heard
proportional to engine
revolutions Inadequate clearance in scroll area
Replace compressor.
A loud noise is heard at a
certain rpm,
disproportionately to
engine revolution Loose or faulty compressor drive belt
Adjust drive belt tension or replace drive belt.
Loose compressor mounting bolts Retighten mounting bolts.
A loud rattle is heard at
low engine rpm Loose compressor clutch plate bolt
Retighten clutch plate bolt.
Replace compressor if it was operated in this
condition for a long time.
Condition Possible cause Correction / Reference Item
A rumbling noise is heard
when compressor is not
in operation Worn or damaged bearings
Replace magnet clutch assembly.
A chattering noise is
heard when compressor
is in operation Faulty magnet clutch clearance
(excessive clearance)
Adjust magnet clutch clearance.
Worn magnet clutch friction surface Replace magnet clutch assembly.
Compressor oil leaked from shaft seal,
contaminating the friction surface Replace compressor body assembly.
Condition
Possible cause Correction / Reference Item
A droning noise is heard
from inside of the vehicle,
but not particularly
noticeable in engine
compartment Faulty tubing clamps
Reposition clamps or increase the number of
clamps.
Resonance caused by pulsation from
variations in re frigerant pressure Attach a silencer to tubing, or modify its
position and length.
Condition
Possible cause Correction / Reference Item
Considerable vibration in
condenser assembly Resonance from condenser assembly
bracket and body Firmly insert a silenc
er between condenser
assembly bracket and body.
Condition Possible cause Correction / Reference Item
A large rattling noise is
heard at idle or sudden
acceleration Loosen crankshaft pulley bolt
Retighten bolt.

Downloaded from www.Manualslib.com manuals search engine 7B-10 Air Conditioning System: Manual Type
Abnormal Noise from Tension Pulley
Abnormal Noise from A/C Evaporator
Abnormal Noise from Blower Motor
A/C System Performance InspectionS7RS0B7214003
1) Confirm that vehicle and environmental conditions are as follows.
• Vehicle is put indoors.
• Ambient temperature is within 25 – 35 °C (77 – 95
° F).
• Relative humidity is within 30 – 70%.
• There is no wind indoors.
• HVAC unit is normal.
• Blower motor is normal.
• There is no air leakage from air ducts.
• Condenser fins are clean.
• Air filter in HVAC unit is not clogged with dirt and
dust.
• Battery voltage is about 12 V.
• Radiator cooling fan operates normally.
2) Make sure that high pressure valve (1) and low pressure valve (2) of manifold gauge are firmly
closed.
3) Connect high pressure charging hose (3) to high pressure service valve (5) on vehicle and low
pressure charging hose (4) to low pressure service
valve (6).
4) Bleed the air in charging hoses (3) and (4) by loosening their nuts respectively utilizing the
refrigerant pressure. When a hissing sound is heard,
immediately tighten nut.
CAUTION!
Do not connect high and low pressure
charging hoses in reverse.

Condition Possible cause Correction / Reference Item
Clattering noise is heard
from pulley Worn or damaged bearing
Replace tension pulley.
Pulley cranks upon
contact Cracked or loose bracket
Replace or retighten bracket.
ConditionPossible cause Correction / Reference Item
Whistling sound is heard
from A/C evaporator Depending on the combination of the
interior / exterior temperatures, engine
rpm and refrigerant pressure, the
refrigerant flowing out of the expansion
valve may, under certain conditions,
make a whistling sound At times, slightly decrea
sing refrigerant volume
may stop this noise.
Inspect expansion valve and replace if faulty.
Condition Possible cause Correction / Reference Item
Blower motor emits a
chirping sound in
proportion to its speed of
rotation Worn or damaged motor brushes or
commutator
Replace blower motor.
Fluttering noise or large
droning noise is heard
from blower motor Leaves or other debris introduced from
fresh air inlet to blower motor
Remove debris and make sure that the screen
at fresh air inlet is intact.
53
2
1
4 6
I4RS0A720006-01