2001 SUZUKI GRAND VITARA start circuit

AIR CONDITIONING (OPTIONAL) 1B-1
1B
SECTION 1B
AIR CONDITIONING (OPTIONAL)
CONTENTS
General Description ....................................... 1B-3
Refrigerant Type .......................................... 1B-3
Refrigerant Flow of Air Conditioning System 1B-3
Major Components And Location ................. 1B-4
Diagnosis ........................................................ 1B-6
General ........................................................ 1B-6
Main A/C system (front A/C system) ........ 1B-6
Rear A/C system ...................................... 1B-8
Quickly Checking of Refrigerant Charge
(If Equipped with Sight Glass) ...................... 1B-9
Performance Diagnosis .............................. 1B-10
Performance diagnosis table .................. 1B-12
Detail diagnosis table (at ambient temperature within 30 - 35 °C
(85 - 95 °F)) ............................................ 1B-13
Wiring Circuit.............................................. 1B-14
Inspection of A/C Controller and Its
Circuits ....................................................... 1B-15
Voltage check......................................... 1B-15
Refrigerant Recovery, Evacuation and
Charging ....................................................... 1B-19
Operation Procedure for Charging A/C with
Refrigerant ................................................. 1B-19
Recovery .................................................... 1B-20
Evacuating ................................................. 1B-21
Evacuating procedure ............................ 1B-21
Checking system for pressure leaks ...... 1B-22 WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
 Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
 Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
CAUTION:
The air conditioning system of this vehicle uses refrigerant HFC-134a (R-134a).
None of refrigerant, compressor oil and component parts is interchangeable between two types of
A/C: one using refrigerant CFC-12 (R-12) and the other using refrigerant HFC-134a (R-134a).
Be sure to check which refrigerant is used before any service work including inspection and mainte-
nance. For identification between these two types, refer to “REFRIGERANT TYPE” in this section.
When replenishing or changing refrigerant and compressor oil and when replacing parts, make sure
that the material or the part to be used is appropriate to the A/C installed in the vehicle being serviced.
Use of incorrect one will result in leakage of refrigerant, damage in parts or other faulty condition.
NOTE:
 For the descriptions (items) not found in this section, refer to the same section of the Service Man-
ual mentioned in FOREWORD of this manual.
 For basic servicing method of the air conditioning system that is not described in this section, refer
to “AIR CONDITIONING BASIC MANUAL (99520-02130)”.

POWER STEERING (P/S) SYSTEM 3B1-1
3B1
SECTION 3B1
POWER STEERING (P/S) SYSTEM
CONTENTS
General Description ......................................3B1-2
Power Steering (P/S) Pump ........................ 3B1-2
Diagnosis .......................................................3B1-2
Power Steering Pump Drive Belt ................. 3B1-2
Belt inspection ......................................... 3B1-2Belt tension check ................................... 3B1-2
Belt tension adjustment ........................... 3B1-2
Hydraulic Pressure in P/S Circuit ................ 3B1-3
Hydraulic pressure check ........................ 3B1-3 WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
For the descriptions (items) not found in this section, refer to the same section of the Service Man-
ual mentioned in the FOREWORD of this manual.
Some parts in the Power Steering Gear Box cannot be disassembled or adjusted. For detailed infor-
mation, refer to the description of “POWER STEERING GEAR BOX ASSEMBLY”.
All steering gear fasteners are important attaching parts in that they could affect the performance of
vital parts and systems, and/or could result in major repair expense. They must be replaced with
one of the same part number or with an equivalent part if replacement becomes necessary. Do not
use a replacement part of lesser quality or substitute design. Torque values must be used as speci-
fied during reassembly to assure proper retention of these parts.

5-2 BRAKES
Diagnosis
Diagnosis Table
For the item not found in this column, refer to the same item of the same section in the service manual men-
tioned in the FOREWORD of this manual.
Condition Possible Cause Correction
Brake warning light
turns on after engine
startParking brake applied Release parking brake and check
that brake warning light turns off.
Insufficient amount of brake fluid Add brake fluid.
Brake fluid leaking from brake line Investigate leaky point, correct it
and add brake fluid.
Brake warning light circuit faulty Repair circuit.
Malfunctioning EBD system Check system referring to “DIAG-
NOSIS” of Section 5E2.
ABS warning light
does not turn on for 2
– 3 sec. after ignition
switch has turned ON.Bulb burnt out Replace bulb.
ABS warning light circuit open (including check
relay)Check system referring to “DIAG-
NOSIS” in Section 5E2.
ABS warning light
remains on after igni-
tion switch has turned
on for 2 – 3 sec.Malfunctioning ABS Check system referring to “DIAG-
NOSIS” in Section 5E2.

ANTILOCK BRAKE SYSTEM (ABS) 5E2-1
5E2
SECTION 5E2
ANTILOCK BRAKE SYSTEM (ABS)
CONTENTS
General Description ..................................... 5E2-3
Components/Parts Location ....................... 5E2-3
ABS Hydraulic Unit/control Module
Assembly .................................................... 5E2-4
Self-diagnosis function ........................... 5E2-4
Fail-safe function .................................... 5E2-5
Diagnosis ...................................................... 5E2-5
Precautions in Diagnosing Troubles .......... 5E2-5
ABS Diagnostic Flow Table ........................ 5E2-6
ABS Warning Lamp Check ........................ 5E2-9
EBD Warning Lamp (Brake Warning Lamp)
Check ......................................................... 5E2-9
Diagnostic Trouble Code (DTC) Check
(Using ABS Warning Lamp) ..................... 5E2-10
Diagnostic Trouble Code (DTC) Check
(Using SUZUKI Scan Tool) ...................... 5E2-11
Diagnostic Trouble Code (DTC)
Clearance ................................................. 5E2-11
Diagnostic Trouble Code (DTC) Table ..... 5E2-12
System Circuit .......................................... 5E2-14Table-A ABS Warning Lamp Circuit Check
– Lamp Does Not Come “ON” at Ignition
Switch ON ................................................ 5E2-15
Table-B ABS Warning Lamp Circuit Check
– Lamp Comes “ON” Steady.................... 5E2-16
Table-C ABS Warning Lamp Circuit Check
– The Lamp Flashes Continuously While
Ignition Switch Is ON ................................ 5E2-17
Table-D Code (DTC) Is Not Outputted
Even with Diagnosis Switch Terminal
Connected to Ground............................... 5E2-18
Table-E EBD Warning Lamp (Brake
Warning Lamp) Check – Lamp Comes
“ON” Steady ............................................. 5E2-19
DTC C1015 (DTC 15) – G Sensor Circuit
and 4WD Lamp Circuit ............................. 5E2-20
DTC C1021 (DTC 21), DTC C1022
(DTC 22) – Right-Front Wheel Speed
Sensor Circuit or Sensor Ring ................. 5E2-22
DTC C1025 (DTC 25), DTC C1026
(DTC 26) – Left-Front Wheel Speed WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
For the descriptions (items) not found in this section, refer to Section 5E1 of the Service Manual
mentioned in the FOREWORD of this manual.
All brake fasteners are important attaching parts in that they could affect the performance of vital
parts and systems, and/or could result in major repair expense. They must be replaced with one of
same part number or with an equivalent part if replacement becomes necessary. Do not use a
replacement part of lesser quality or substitute design. Torque values must be used as specified
during reassembly to assure proper retention of all parts. There is to be no welding as it may result
in extensive damage and weakening of the metal.

5E2-10 ANTILOCK BRAKE SYSTEM (ABS)
Diagnostic Trouble Code (DTC) Check (Using
ABS Warning Lamp)
1) Perform ABS WARNING LAMP CHECK described above.
2) Using service wire (4), connect diagnosis switch terminal (2)
of monitor coupler (1) to ground (3).
3) Turn ignition switch ON.
4) Read flashing of ABS warning lamp which represents DTC
as shown in example below and write it down. When more
than 2 DTCs are stored in memory, flashing for each DTC is
repeated three times starting with the smallest DTC number
in increasing order.
For details of DTC, refer to “DTC TABLE”.
Example : When right-front wheel speed sensor circuit opens (DTC 21)
5) After completing the check, turn ignition switch off, discon-
nect service wire from monitor coupler.

5E2-12 ANTILOCK BRAKE SYSTEM (ABS)
4) Repeat disconnecting and reconnecting of service wire
between diagnosis and ground terminals 5 times or more at
about 1sec. interval within 10 seconds.
5) Turn ignition switch OFF and disconnect service wire from
monitor coupler.
6) Perform “DRIVING TEST” (Step 2 of “ABS DIAGNOSTIC
FLOW TABLE” in this section) and “DTC CHECK” and con-
firm that normal DTC (DTC 12) is displayed ; not malfunction
DTC.
Diagnostic Trouble Code (DTC) Table
O : Open
S : Short
T : About 10 seconds
NOTE:
It is also possible to clear DTC by using SUZUKI scan
tool. Refer to Cartridge Manual for procedure to clear
DTC.
CAUTION:
Be sure to perform “ABS DIAGNOSTIC FLOW TABLE” before starting diagnosis.
DTC
(displayed
on SUZUKI
scan tool)DTC
(indicated by
ABS warning
lamp)ABS warning lamp flashing
patternDIAGNOSTIC ITEMS
NO DTC 12 Normal
C1015 15 G sensor circuit and 4WD lamp circuit
C1021 21 RF
Wheel speed sensor circuit C1025 25 LF
C1031 31 RR
C1035 35 LR

ANTILOCK BRAKE SYSTEM (ABS) 5E2-19
Table-E EBD Warning Lamp (Brake Warning Lamp) Check – Lamp Comes
“ON” Steady
CIRCUIT DESCRIPTION
EBD warning lamp (brake warning lamp) is controlled by parking brake switch, brake fluid level switch and ABS
control module/hydraulic unit assembly through lamp driver module in combination meter. Refer to “TABLE – A”
for circuit diagram.
INSPECTION
Step Action Yes No
1 1) Make sure that :
Parking brake is completely released.
Brake fluid level is upper than the minimum
level.
Are the check results OK?Go to Step 2. Release parking brake
completely and/or replen-
ish brake fluid.
2Does “ABS” warning lamp come on? Perform “TABLE – B” pre-
viously outlined.Go to Step 3.
3 1) Disconnect ABS hydraulic unit/control mod-
ule connector.
2) Check for proper connection to ABS
hydraulic unit/control module connector at
terminals “E136-10”.
3) If OK, apply chocks to wheels and select
gear in neutral position (P range for A/T).
4) Keep brake pedal depressed and start
engine.
Release parking brake.
5) Connect terminal “E136-10” of discon-
nected connector to ground using service
wire.
Does EBD warning lamp (brake warning lamp)
turn off?Substitute a known-good
ABS hydraulic unit/con-
trol module assembly and
recheck.“BRN” circuit open.
If wire and connection are
OK, replace combination
meter.

5E2-22 ANTILOCK BRAKE SYSTEM (ABS)
DTC C1021 (DTC 21), DTC C1022 (DTC 22) – Right-Front Wheel Speed Sensor
Circuit or Sensor Ring
DTC C1025 (DTC 25), DTC C1026 (DTC 26) – Left-Front Wheel Speed Sensor
Circuit or Sensor Ring
DTC C1031 (DTC 31), DTC C1032 (DTC 32) – Right-Rear Wheel Speed Sensor
Circuit or Sensor Ring
DTC C1035 (DTC 35), DTC C1036 (DTC 36) – Left-Rear Wheel Speed Sensor
Circuit or Sensor Ring
DESCRIPTION
The ABS control module monitors the voltage at the terminal of each sensor while the ignition switch is ON.
When the voltage is not within the specified range, an applicable DTC will be set. Also, when no sensor signal is
inputted at starting or while running, an applicable DTC will be set.
1. Ignition switch 4. Right-front wheel speed sensor 7. ABS hydraulic unit/control module connector
2. ABS control module/hydraulic unit assembly 5. Left-rear wheel speed sensor
3. Left-front wheel speed sensor 6. Right-rear wheel speed sensor
NOTE:
When the vehicle was operated in any of the following ways, one of these DTCs may be set even when
the sensor is in good condition. If such possibility is suspected, repair the trouble (dragging of brake,
etc.) of the vehicle, clear DTC once and then after performing the driving test as described in Step 2 of
“ABS DIAGNOSIS FLOW TABLE”, check whether or not any abnormality exists.
The vehicle was driven with parking brake pulled.
The vehicle was driven with brake dragging.
Wheel spin occurred while driving.
Wheel(s) was turned while the vehicle was jacked up.
The vehicle was stuck.