Ignition system SUZUKI SWIFT 2000 1.G RG413 Service Owner's Guide

3B1-22 ELECTRICAL POWER STEERING (P/S) SYSTEM
DTC C1151 (DTC No.51) CLUTCH CIRCUIT FAILURE
1. To main fuse 4.“IG METER” fuse (15A) in fuse box 7. Connector “G24”
2. Ignition switch 5. P/S control module 8. Connector “G24-2”
3.“P/S” fuse (30A) in fuse box 6. Motor and clutch
M
G24-2 G24-1
G24-8G24-2-2
G24-2-1
G24-2-4
G24-2-3 1
23
46 5
BLK/WHTBLK/RED
BLKBLK BLK RED or BLKBLK or RED
G24-1
G24-8G24-2
7
G24-2-2
G24-2-4 G24-2-3 G24-2-1
8
Step Action Yes No
1Was “SYSTEM CHECK FLOW TABLE” per-
formed?Go to STEP 2. Go to “SYSTEM CHECK
FLOW TABLE”.
2 1) Remove steering column lower cover.
2) Check proper connection for 4-terminals
connector (“G24-2”) to P/S control module.
3) If OK, start engine.
4) Check voltage between “G24-2-4” (“BLK”
wire) terminal and body ground with con-
nector (“G24-2”) connected to P/S control
module.
Is it 0 V?Go to STEP 3. Repair poor connection,
high resistance, open or
short to power circuit or
ground in “G24-2-4”
(“BLK” wire) circuit.
3 1) Check voltage between “G24-2-3” (“BLK”
wire) terminal and body ground with con-
nector (“G24-2”) connected to P/S control
module.
Is it 10 – 14 V with steering wheel held at posi-
tion for vehicle to run straight?Go to STEP 4. Repair poor connection,
high resistance, open or
short to power circuit or
ground in “G24-2-3”
(“BLK” wire) circuit.
4 1) Check motor and its circuit. Refer to
“MOTOR AND CLUTCH”.
Is motor and clutch in good condition?Substitute a known-good
P/S control module and
recheck.Replace steering column
assembly and recheck.

3B1-24 ELECTRICAL POWER STEERING (P/S) SYSTEM
DTC C1153(DTC No.53) P/S CONTROL MODULE POWER SUPPLY CIRCUIT
FAILURE
Fig. for Step 2
DTC C1152/C1154/C1155 (DTC No.52/54/55) P/S CONTROL MODULE FAILURE
Substitute a known-good P/S control module and recheck.
1. To main fuse 3.“P/S” fuse (30A) in fuse box 5. P/S control module
2. Ignition switch 4.“IG METER” fuse (15A) in fuse box 6. Connector “G24”
G24-2 G24-1
G24-8 13
45
BLK/WHT BLK/RED
BLK
G24-1
G24-8G24-2
6
Step Action Yes No
1Was “SYSTEM CHECK FLOW TABLE” per-
formed?Go to STEP 2. Go to “SYSTEM CHECK
FLOW TABLE”.
2 1) Remove steering column lower cover.
2) Check “P/S” fuse and proper connection to
P/S control module at “G24-1” (“BLK/WHT”
wire) terminal.
3) If OK, check voltage between “G24-1” termi-
nal and body ground with connector (“G24”)
connected to P/S control module.
Is it 10 – 14 V?Check intermittent trou-
ble. Refer to “INTERMIT-
TENT TROUBLE” in
SECTION 0A.
If OK, substitute a known-
good P/S control module
and recheck.Repair poor connection or
high resistance in “G24-1”
(“BLK/RED” wire) circuit.

3B1-26 ELECTRICAL POWER STEERING (P/S) SYSTEM
INSPECTION OF P/S CONTROL MODULE
AND ITS CIRCUITS
P/S control module (1) and its circuits can be checked at P/S con-
trol module wiring couplers (2) by measuring voltage and resis-
tance.
Voltage Check
1) Remove steering column lower cover with ignition switch
OFF position.
2) Check voltage at each terminal with connectors (2) con-
nected P/S control module. CAUTION:
P/S control module cannot be checked by itself. It is
strictly prohibited to connect voltmeter or ohmmeter to
P/S control module with connector disconnected from it.
NOTE:
As each terminal voltage is affected by the battery volt-
age, confirm that it is 11V or more when ignition switch is
ON.

ELECTRICAL POWER STEERING (P/S) SYSTEM 3B1-27
TERMINAL
NO.CIRCUIT NORMAL VOLTAGE CONDITION
G24-2 Ground––
G24-1 P/S control module
power supply from battery10 – 14V–
G24-8 P/S control module
power supply from igni-
tion switch10 – 14V Ignition switch ON
G24-7 VSS✱ Indicator
deflection repeated
0 – 1V and 9 – 11VIgnition switch ON
Front left tire turned quickly with right
tire locked
G24-6 Engine speed signal✱ Indicator
deflection repeated
0 – 1V and 10 – 14VEngine idling
G24-5“EPS” light 0V“EPS” warning lamp ON
G24-4 Diagnosis switch terminal 0 – 14V Ignition switch ON
G24-3 Data link connector––
G24-2-2 Motor output 2 5 – 7V Engine idling and steering wheel
held at position for vehicle to run
straight
G24-2-1 Motor output 1 5 – 7V Engine idling and steering wheel
held at position for vehicle to run
straight
G24-2-4 Clutch output 2 0V–
G24-2-3 Clutch output 1 10 – 14V Engine idling
G24-1-5 Torque sensor (Main) About 2.5V Ignition switch ON and steering
wheel held at position for vehicle to
run straight
Check voltage between “G24-1-5”
and “G24-1-3” terminals
G24-1-4 Torque sensor (Sub) About 2.5V Ignition switch ON and steering
wheel held at position for vehicle to
run straight
Check voltage between “G24-1-4”
and “G24-1-3” terminals
G24-1-3 Torque sensor (GND) 0V–
G24-1-2 5V power supply
for torque sensorAbout 5V Ignition switch ON
Check voltage between “G24-1-2”
and “G24-1-3” terminals
G24-1-1 8V power supply
for torque sensorAbout 8V Ignition switch ON
Check voltage between “G24-1-1”
and “G24-1-3” terminals
NOTE:
✱
✱✱ ✱ : The voltage of this circuit may fail to check by voltmeter.
If so, use oscilloscope.

ELECTRICAL POWER STEERING (P/S) SYSTEM 3B1-29
ON-VEHICLE SERVICE
P/S CONTROL MODULE
REMOVAL
1) Disconnect negative cable at battery.
2) Remove steering column hole cover.
3) Disconnect connectors (1) from P/S control module.
4) Remove P/S control module (2) from steering column
assembly.
INSTALLATION
Reverse removal procedure for installation, noting the following.
Tighten P/S control module screw to specified torque.
Tightening torque
P/S control module screw
(a) : 3 N·m (0.3 kg-m, 2.0 lb-ft)
TORQUE SENSOR
ON-VEHICLE INSPECTION
1) Remove steering column hole cover.
2) Turn ignition switch to ON position.
3) Check voltage between terminals of torque sensor connector
with connecting it to P/S control module and not running
engine.
If check result is not satisfactory, replace steering column
assembly.
Torque sensor specification
Steering
wheel
turned fully
leftSteering wheel
held at position
for vehicles
torque straightSteering
wheel
turned fully
right
Main sensor
(“G24-1-4” –
“G24-1-3”)1.5 V below About 2.5 V Above 3.5 V
Sub sensor
(“G24-1-5” –
“G24-1-3”)1.5 V below About 2.5 V Above 3.5 V

3B1-30 ELECTRICAL POWER STEERING (P/S) SYSTEM
MOTOR AND CLUTCH
ON-VEHICLE INSPECTION
1) Remove steering column hole cover.
2) Disconnect motor and clutch connector (1) from P/S control
module with ignition switch OFF.
3) Check resistance between terminals of motor and clutch
connector (1)
If check result is not as specified above, replace steering col-
umn assembly.
Motor and clutch circuit resistance
4) Check continuity between terminal of motor and clutch con-
nector (1) and body ground.
If check result is not as specified above, replace steering col-
umn assembly.
Motor and clutch circuit resistance (to body ground)
5) Connect battery (1) between “G24-2-2” and “G24-2-1”.
Check that motor rotates smoothly, then measure current
between “G24-2-1” and “G24-2-2” using ammeter (2) as
shown in figure.
If check result is not satisfactory, replace steering column
assembly.
Motor and clutch circuit current (reference value)
Standard : About 0.65 A
6) Connect battery (1) between “G24-2-4” and “G24-2-3”, then
check that clutch operation sound is heard.
If check result is not satisfactory, replace steering column
assembly. “G24-2-2” and “G24-2-1”
(For motor)About 1
Ω
ΩΩ Ω
“G24-2-4” and “G24-2-3”
(For clutch)About 12
Ω
ΩΩ Ω
(at 20°C (68°F))
“G24-2-4” and body ground No continuity
“G24-2-2” and body ground No continuity

STEERING WHEEL AND COLUMN 3C-1
6F1
6F2
6G
6H
6K
7A
7A1
7B1
3C1
7E
7F
8A
8B
8C
8D
8E
9
10
10A
10B
SECTION 3C
STEERING WHEEL AND COLUMN
CONTENTS
GENERAL DESCRIPTION .............................. 3C-2
STEERING COLUMN .................................. 3C-2
STEERING WHEEL AND DRIVER AIR
BAG (INFLATOR) MODULE ........................ 3C-2
DIAGNOSIS ..................................................... 3C-2
INSPECTION AND REPAIR REQUIRED
AFTER ACCIDENT ...................................... 3C-2
ON-VEHICLE SERVICE .................................. 3C-3
SERVICE PRECAUTIONS........................... 3C-3
SERVICE AND DIAGNOSIS .................... 3C-3
DISABLING AIR BAG SYSTEM ............... 3C-3
ENABLING AIR BAG SYSTEM ................ 3C-3
HANDLING AND STORAGE.................... 3C-4
DISPOSAL ............................................... 3C-4DRIVER AIR BAG (INFLATOR) MODULE .. 3C-4
STEERING WHEEL ..................................... 3C-6
CENTERING CONTACT COIL .................... 3C-7
CONTACT COIL AND COMBINATION
SWITCH ASSEMBLY .................................. 3C-8
STEERING COLUMN ASSEMBLY............ 3C-10
STEERING LOCK ASSEMBLY
(IGNITION SWITCH) ................................. 3C-16
STEERING LOWER SHAFT...................... 3C-17
CHECKING STEERING COLUMN
ASSEMBLY AND LOWER SHAFT FOR
ACCIDENT DAMAGE ................................... 3C-18
SPECIAL TOOL ............................................ 3C-19

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. Please observe all WARNINGS and “Service Precautions” under “On-
Vehicle Service” in air bag system section before performing service on or around the air bag sys-
tem 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.
The procedures in this section must be followed in the order listed to temporarily disable the air
bag system and prevent false diagnostic codes from setting. Failure to follow procedures could
result in possible air bag system activation, personal injury or otherwise unneeded air bag system
repairs.
CAUTION:
When fasteners are removed, always reinstall them at the same location from which they were
removed. If a fastener needs to be replaced, use the correct part number fastener for that application.
If the correct part number fastener is not available, a fastener of equal size and strength (or stronger)
may be used. Fasteners that are not reused, and those requiring thread-locking compound, will be
called out. The correct torque value must be used when installing fasteners that require it. If the above
procedures are not followed, parts or system damage could result.

3C-2 STEERING WHEEL AND COLUMN
GENERAL DESCRIPTION
STEERING COLUMN
This double tube type steering column has following three important features in addition to the steering function
:
The column is energy absorbing, designed to compress in a front-end collision.
The ignition switch and lock are mounted conveniently on this column.
With the column mounted lock, the ignition and steering operations can be locked to inhibit theft of the vehi-
cle.
To insure the energy absorbing action, it is important that only the specified screws, bolts, and nuts be used as
designated and that they are tightened to the specified torque.
When the column assembly is removed from the vehicle, special care must be taken in handling it. Use of a
steering wheel puller other than the one recommended in this manual or a sharp blow on the end of the steering
shaft, leaning on the assembly, or dropping the assembly could shear the plastic shear pins which maintain col-
umn length and position.
STEERING WHEEL AND DRIVER AIR BAG (INFLATOR) MODULE
The driver air bag (inflator) module is one of the supplemental restraint (air bag) system components and is
mounted to the center of the steering wheel. During certain frontal crashes, the air bag system supplements the
restraint of the driver’s and passenger’s seat belts by deploying the air bags.
The air bag (inflator) module should be handled with care to prevent accidental deployment. When servicing, be
sure to observe all WARNINGS and CAUTIONS and “SERVICE PRECAUTIONS” under “ON-VEHICLE SER-
VICE” in Section 10B.
DIAGNOSIS
For maintenance service of the steering wheel and column, refer to Section 0B.
For diagnosis of the steering wheel and column, refer to Section 3.
For diagnosis of the air bag system, refer to Section 10B.
INSPECTION AND REPAIR REQUIRED AFTER ACCIDENT
After an accident, whether the air bag has been deployed or not, be sure to perform checks, inspections and
repairs described under “CHECKING STEERING COLUMN ASSEMBLY AND LOWER SHAFT FOR ACCI-
DENT DAMAGE” as well as “REPAIRS AND INSPECTIONS REQUIRED AFTER ACCIDENT” under “DIAGNO-
SIS” in Section 10B.

STEERING WHEEL AND COLUMN 3C-3
ON-VEHICLE SERVICE
SERVICE PRECAUTIONS
For service precautions, refer to “SERVICE PRECAUTIONS” under “ON-VEHICLE SERVICE” in Section 10B.
SERVICE AND DIAGNOSIS
For diagnosis and servicing, refer to “SERVICE AND DIAGNOSIS” under “SERVICE PRECAUTIONS” in Sec-
tion 10B.
DISABLING AIR BAG SYSTEM
For disabling air bag system, refer to “DISABLING AIR BAG SYSTEM” under “SERVICE PRECAUTIONS” in
Section 10B.
ENABLING AIR BAG SYSTEM
For enabling air bag system, refer to “ENABLING AIR BAG SYSTEM” under “SERVICE PRECAUTIONS” in
Section 10B.
1. Driver air bag (inflator) module 7. Steering column assembly 13. Immobilizer control module (if equipped)
2. Steering wheel 8. Steering lock assembly (ignition switch) 14. Upper and lower joint bolt
: After tightening lower joint bolt, tighten upper joint bolt.
3. Steering wheel nut 9. P/S control module (if equipped) 15. Steering column mounting nut
: After tightening lower nut, tightening upper nut.
4. Contact coil and combination
switch assembly10. Motor for P/S system (if equipped) Tightening torque
5. Steering column upper cover 11. Steering lower shaft
6. Steering column lower cover 12. Steering joint cover

STEERING WHEEL AND COLUMN 3C-11
REMOVAL
1) Disconnect negative cable at battery.
2) Disable air bag system. Refer to “DISABLING AIR BAG
SYSTEM” under “SERVICE PRECAUTIONS” in Section
10B.
3) If it is necessary to remove steering wheel and contact coil
and combination switch assembly, remove them, referring to
“STEERING WHEEL” and “CONTACT COIL AND COMBI-
NATION SWITCH ASSEMBLY”.
If it is not necessary to remove steering wheel and contact
coil and combination switch assembly, perform the following
procedure.
a) Turn steering wheel so that vehicle’s front tires are at
straight-ahead position.
b) Turn ignition switch to “LOCK” position and remove key.
4) Remove steering column hole cover (1).
5) Loosen steering column mounting nuts (“A”, “B”). WARNING:
Never rest a steering column assembly on the steering
wheel with the air bag (inflator) module face down and
column vertical. Otherwise, personal injury may result.
1