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-41
Tie-Rod End Boot On-Vehicle InspectionS7RS0B6306002
Check boot for crack and damage.
If any defect is found, replace it with a new one.
Tie-Rod End Removal and InstallationS7RS0B6306003
Removal1) Hoist vehicle, and then remove wheel referring to “Wheel Removal and Installation in Section 2D”.
2) Remove split pin (2) and tie-rod end nut (1) from steering knuckle.
3) Disconnect tie-rod end (1) from knuckle (2) using puller (3). 4) For ease of adjustment after installation, make
marking (1) of tie-rod end lock nut (2) position on tie-
rod end thread. Then, loosen lock nut and remove
tie-rod end (3) from tie-rod (4).
Installation 1) Install tie-rod end lock nut (1) and tie-rod end (2) to tie-rod (3). Align lock nut with mark (4) on tie-rod
thread.
9. Tie-rod end nut 20. Gear rack side No.2 bracket : 9.5 N⋅m (0.95 kgf-m, 7.0 lb-ft)
10. Steering gear case mounting No.1 bolt 21. Steering gear case mounting No.2 bolt : Do not reuse.
11. Steering gear case grommet 22. Clip
I3RM0A630024-01
21
I7RS0A630016-01
2 1
3
I4RS0A630040-01
I4RS0A630041-01
I4RS0A630042-01
Downloaded from www.Manualslib.com manuals search engine 6C-42 Power Assisted Steering System:
2) Connect tie-rod end to knuckle. Tighten tie-rod end nut (1) to spec ified torque.
3) Bend new split pin (2).
NOTE
After tightening tie-rod end nut to specified
torque, match next first slot of nut with hole
of tie-rod end for insertion of split pin
(rotation angle 60 ° max).
Tightening torque
Tie-rod end nut (a): 45 N·m (4.5 kgf-m, 32.5 lb-ft)
4) Inspect for proper toe re ferring to “Front Wheel
Alignment Inspection and Adjustment in Section 2B”.
5) After confirming proper toe, tighten tie-rod end lock nut to specified torque.
Tightening torque
Tie-rod end lock nut (a): 45 N·m (4.5 kgf-m, 32.5
lb-ft)
6) Tighten wheel nuts to specified torque and lower hoist.
Tightening torque
Wheel nut: 85 N·m (8.5 kgf-m, 61.5 lb-ft)
Tie-Rod End InspectionS7RS0B6306004
• Inspect for play in ball joint.
• Inspect for play in rack end ball joint. In either case, if found defective, replace.
Steering Shaft Joint On-Vehicle InspectionS7RS0B6306005
Check shaft joint for wear, breakage and any other
damage and replace if any defect exists.
Steering Gear Case Assembly Removal and
Installation
S7RS0B6306006
Removal
CAUTION!
Be sure to set front wheels (tires) in straight
direction and remove ignition key from key
cylinder before performing the following
steps; otherwise, contact coil of air bag
system may get damaged.
1) Remove front suspension frame with steering gear case assembly referrin g to “Front Suspension
Frame, Stabilizer Bar and/ or Bushings Removal and
Installation in Section 2B”.
2) Remove steering gear case mounting No.3 bolts (4), No.1 bolts (1), No.2 bolts (2) and gear case bracket,
then remove gear case (3) from front suspension
frame (5).
2 1,(a)
I7RS0A630017-01
I3RM0A630030-01
I4RS0A630043-01
I4RS0B630012-01
25
3
14
I6RS0C630018-01
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 Power Assisted Steering System: 6C-45
8) Install steering gear case assembly referring to “Steering Gear Case Assembly Removal and
Installation”.
Steering Rack Plunger Removal and InstallationS7RS0B6306009
Removal
1) Remove gear case assembly referring to “Steering
Gear Case Assembly Removal and Installation”.
2) Loosen lock nut (1) with holding damper screw (2).
3) Remove lock nut (1), rack damper screw (2), rack plunger spring (3) and rack plunger (4).
Installation 1) Apply grease lightly to sliding part of plunger (1) against rack.
“A”: Grease 99000–25050 (SUZUKI Super
Grease E)
2) Install plunger and spring (2) as shown.
3) Apply thread lock cement to rack damper screw (3)
and tighten them as follows.
a) Tighten damper screw to 25 N ⋅m (2.5 kgf-m, 18.0
lb-ft).
b) Loosen damper screw until 180 °.
c) Retighten damper screw to 3.9 N ⋅m (0.39 kgf-m,
3.0 lb-ft).
d) After tightening rack damper screw to specified torque, turn it back by 7 ± 3°.
“B”: Thread lock cement 99000–32110
(Thread Lock Cement Super 1322)
Tightening torque
Rack damper screw (a): Tighten 25 N ⋅m (2.5
kgf-m, 18.0 lb-ft) and loosen 180° and then
tighten 3.9 N ⋅m (0.39 kgf-m, 3.0 lb-ft) and turn
it back by 7 ± 3° by the specified procedure. 4) Pinion rotation torque should be checked with rack
position centered.
Also, check if rack as a whole moves smoothly.
Special tool
(A): 09944–18310
Tightening torque
Rotation torquer of pinion (a): 2.0 N·m (0.2 kgf-
m, 1.5 lb-ft)
5) After adjustment, tighten lo ck nut to specified torque
with holding damper screw at the position.
Tightening torque
Rack damper screw lock nut (a): 64 N·m (6.4
kgf-m, 46.5 lb-ft)
6) Install gear case assembly referring to “Steering Gear Case Assembly Re moval and Installation”.
Steering Rack Plunger InspectionS7RS0B6306010
• Inspect rack plunger (1) for wear or damage.
• Inspect rack plunger spring (2) for deterioration.
I4RS0A630045-01
I4RS0A630046-01
I3RM0A630055-02
I4RS0A630047-01
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-3
Diagnostic Information and Procedures
Heater and Ventilation Symptom DiagnosisS7RS0B7104001
ConditionPossible cause Correction / Reference Item
Blower motor does not
operate with blower
speed selector ON Fuse blown
Check related fuses, and then check for short
circuit to ground.
Blower motor relay faulty Check blower motor relay referring to “Blower
Motor Relay Inspection”.
Blower motor resistor faulty Check blower motor resistor referring to
“Blower Motor Resistor Inspection”.
Blower speed selector faulty Check blower speed selector referring to
“Blower Speed Selector Inspection”.
Blower motor faulty Check blower motor referring to “Blower Motor
Inspection”.
Wiring or grounding faulty Repair as necessary.
Incorrect temperature
output Temperature control cable broken or
bent (manual A/C) Check temperature control cable.
Temperature control lever faulty (manual
A/C) Check temperature control lever.
Incorrect installation of temperature
control cable (manual A/C) Check position and adjust it as necessary.
Temperature control door assembly
broken Repair temperature control door assembly.
Air ducts clogged Repair air ducts.
Heater core leaked or clogged Replace heater core.
Heater hoses leaked or clogged Replace heater hoses.
Thermostat faulty Check thermostat referring to “Thermostat
Inspection in Section 1F”.
Temperature control actuator faulty
(automatic A/C) Check temperature control actuator referring to
“Temperature Control Actuator Inspection in
Section 7B”.
HVAC control module faulty (automatic
A/C) Check HVAC control module referring to
“Inspection of HVAC Control Module and Its
Circuit in Section 7B”.
Wiring or grounding faulty (automatic A/
C) Repair as necessary.
Air outlet port does not
change or does not agree
with air flow selector’s
position even if air flow
selector is changed Air flow control cable broken or bent
(manual A/C)
Check air flow control cable.
Air flow control lever faulty (manual A/C) Check air flow control lever.
Incorrect installation of air flow control
cable (manual A/C) Check position and adjust it as necessary.
Air flow control door assembly broken Repair air flow control door assembly.
Air ducts leaked or clogged Repair air ducts.
Air flow control actuator faulty
(automatic A/C) Check air flow control actuator referring to “Air
Flow Control Actuator
Inspection in Section
7B”.
HVAC control module faulty (automatic
A/C) Check HVAC control module referring to
“Inspection of HVAC Control Module and Its
Circuit in Section 7B”.
Wiring or grounding faulty (automatic A/
C) Repair as necessary.
Air intake door does not
change even if air intake
mode is changed Air intake door broken
Repair air intake door.
Air intake control actuator faulty Check air intake control actuator referring to
“Air Intake Control Actuator Inspection”.
Air intake selector faulty Check air intake selector referring to “Air Intake
Selector Inspection”.
Wiring or grounding faulty Repair as necessary.