brake sensor SUZUKI SWIFT 2000 1.G RG413 Service Owner's Guide

ANTILOCK BRAKE SYSTEM (ABS) 5E-37
SENSOR ROTER INSPECTION
Check rotor for being missing, damaged or deformed.
Turn drive shaft and check if rotor rotation is free from
eccentricity and looseness.
Check that no foreign material is attached.
If any faulty is found, repair or replace. Refer to “WHEEL
HUB” in Section 3D.
INSTALLATION
1) Check that no foreign material is attached to sensor (1) and
sensor ring (2).
2) Install it by reversing removal procedure.
Tightening torque
Front wheel speed sensor bolt (a) :
10 N·m (1.0 kg-m, 7.5 lb-ft)
3) Check that there is no clearance between sensor and
knuckle.
FRONT WHEEL SPEED SENSOR RING
For removal and installation of wheel side joint assembly of drive
shaft, refer to “FRONT DRIVE SHAFT” section.
CAUTION:
Do not pull or twist wire harness more than necessary
when installing front wheel speed sensor.
NOTE:
The front wheel sensor ring can not be removed or
replaced alone. If front wheel sensor ring needs to be
replaced, replace it as a wheel side joint assembly of
drive shaft.

5E-38 ANTILOCK BRAKE SYSTEM (ABS)
REAR WHEEL SPEED SENSOR
OUTPUT VOLTAGE INSPECTION
1) Turn ignition switch OFF.
2) Remove rear seat referring to Section 9.
3) Turn over floor carpet.
4) Hoist vehicle.
5) Disconnect connector of wheel speed sensor.
6) Connect voltmeter between connector (1) terminals.
7) While turning wheel at a speed of approximately 1/2 rotation
to 1 rotation per second, check AC voltage of sensor.
Output AC voltage at 1/2 to 1 rotation per second
2WD vehicle : 85 mV or more
4WD vehicle : 106 mV or more
8) If measured voltage is not as specified, check sensor, rotor
and their installation conditions.
1. Left rear wheel speed sensor 3. Trailing arm
2. Right rear wheel speed sensor 4. Sensor ring
3 1
4
2
3

ANTILOCK BRAKE SYSTEM (ABS) 5E-39
Reference
When using oscilloscope for this check, check if peak-to-peak
voltage (1) meets specification and waveform is complete.
Peak-to-peak voltage at 1/2 to 1 rotation per second
2WD vehicle : 120 mV or more at 20 Hz
4WD vehicle : 150 mV or more at 20 Hz
REMOVAL
1) Disconnect negative cable at battery.
2) Remove rear seat referring to Section 9.
3) Turn over floor carpet.
4) Hoist vehicle.
5) Disconnect rear wheel speed sensor coupler (1).
6) Detach ABS wheel sensor wire harness (2) from suspension
frame (3).
7) Remove rear wheel speed sensor (4) from rear axle housing.
SENSOR INSPECTION
Check sensor for damage.
Check sensor for resistance and continuity.
Between both terminals of sensor
2WD vehicle : 0.9 – 1.3 k
Ω
ΩΩ Ω at 20°C (68°F)
4WD vehicle : 1.2 – 1.6 k
Ω
ΩΩ Ω at 20°C (68°F)
Between sensor terminal and sensor body
: No continuity
If the check result is not as specified and any malcondition is
found, replace.
NOTE:
Do not detach crip of rear wheel speed sensor connector
from vehicle body unless replacement is necessary.
CAUTION:
Do not pull wire harness when removing rear wheel
speed sensor.
Do not cause damage to surface of rear wheel speed
sensor and do not allow dust, etc. to enter its installa-
tion hole.
4
231

5E-40 ANTILOCK BRAKE SYSTEM (ABS)
SENSOR ROTOR INSPECTION
Check rotor serration (teeth) for being missing, damaged or
deformed.
Turn wheel and check if rotor rotation is free from eccentric-
ity and looseness.
Check that no foreign material is attached.
If any faulty is found, repair or replace.
INSTALLATION
Reverse removal procedure for installation noting the following.
Check that no foreign material is attached to sensor (1) and
ring.
Be sure to install wheel speed sensor and its bolt at the cor-
rect (upper) position as shown in figure.
Tighten sensor bolt to specified torque.
Tightening torque
Sensor bolt (a) : 10 N·m (1.0 kg-m, 7.5 lb-ft)
Check that there is no clearance between sensor and rear
axle shaft.
[A] : For 2WD
[B] : For 4WD
[B] [A]
1
CAUTION:
Do not pull or twist wire harness more than necessary
when installing rear wheel speed sensor.

ANTILOCK BRAKE SYSTEM (ABS) 5E-41
REAR WHEEL SPEED SENSOR RING (FOR
2WD VEHICLE)
REMOVAL
1) Remove rear wheel sensor from rear axle housing.
2) Remove brake drum referring to Section 5.
3) Remove sensor ring (1) from brake drum (2) using special
tools.
Special tool
(A) : 09913-75520
(B) : 09913-65135
INSTALLATION
1) Install new sensor ring (1) to brake drum (2) using special
tool and hydraulic press (3).
Special tool
(A) : 09913-75840
2) Install brake drum. Refer to Section 5.
3) Install rear wheel speed sensor (1) to rear axle housing.
Tightening torque
Rear wheel speed sensor (a) : 10 N·m (1.0 kg-m, 7.5 lb-ft) CAUTION:
Pull out sensor ring from brake drum gradually and
evenly. Attempt to pull it out partially may cause it to be
deformed.
NOTE:
Do not reuse (reinstall) removed sensor ring.
1
(a)

5E-42 ANTILOCK BRAKE SYSTEM (ABS)
REAR WHEEL SPEED SENSOR RING (FOR
4WD VEHICLE)
REMOVAL
1) Remove rear axle shaft referring to Section 3E.
2) Remove rear wheel sensor ring from axle shaft by using spe-
cial tools.
Special tool
(A) : 09927-18411
(B) : 09921-57810
INSTALLATION
1) Install new wheel sensor ring (1) by using hydraulic press
(2).
2) Install rear axle shaft referring to Section 3E.
3) Install wheel speed sensor to rear axle housing.
Tightening torque
Wheel sensor ring bolt : 10 N·m (1.0 kg-m, 7.5 lb-ft)
NOTE:
Do not reuse (reinstall) removed sensor ring.
Do not damage to retainer ring when press fitting
wheel sensor ring.
1 2

ANTILOCK BRAKE SYSTEM (ABS) 5E-43
G SENSOR (FOR 4WD VEHICLE ONLY)
REMOVAL
1) Turn ignition switch OFF and disconnect battery negative
cable.
2) Remove ABS fuse from fuse box.
3) Disconnect ABS hydraulic unit/control module assembly
connector by pulling up lock.
4) Remove center console box.
5) Remove G sensor (1) from floor.
6) Disconnect connector from sensor.
INSPECTION
Connect positive cable of 12 volt battery to “A” terminal of sensor
and ground cable to “C” terminal. Then using voltmeter, check
voltage between “B” terminal and “C” terminal.
G sensor specification
When placed horizontally : 2 – 3 V
When placed upright with arrow upward : 3 – 4 V
When placed upright with arrow downward : 1 – 2 V
If measured voltage is not as specified, replace sensor.
INSTALLATION
1) Connect connector to sensor securely.
2) Install sensor onto floor so that arrow mark directs vehicle
forward.
3) Connect ABS hydraulic unit/control module assembly con-
nector.
4) Install ABS fuse to fuse box.
5) Install rear console box.CAUTION:
Sensor must not be dropped or shocked. It will affect its
original performance.
2. Label1
2
[A] : Horizontal
[B] : Upright with arrow upward
[C] : Upright with arrow downward

5E-44 ANTILOCK BRAKE SYSTEM (ABS)
SPECIAL TOOL
09913-65135 09913-75520 09913-75840 09927-18411
Bearing puller Bearing installing tool Sensor ring installer Universal puller
09921-57810 09931-76011 09931-76030
Countershaft holder Tech 1A kit
(See NOTE below.)Mass storage cartridge 16/14 pin DLC cable
09950-78220
Flare nut wrench (10 mm)
NOTE:
This kit includes the following items.
1. Storage case, 2. Operator's manual, 3. Tech 1A, 4. DLC cable, 5. Test lead/probe,
6. Power source cable, 7. DLC cable adaptor, 8. Self-test adaptor

6-28 ENGINE GENERAL INFORMATION AND DIAGNOSIS
Poor gasoline mile-
age Leaks or loose connection of high-tension
cordHigh-tension cords in Section 6F1.
Faulty spark plug (improper gap, heavy
deposits and burned electrodes, etc.)Spark plugs in Section 6F1.
Malfunctioning EGR valve (if equipped) EGR system in Section 6E1.
High idle speed Refer to item “Improper engine idle
speed” previously outlined.
Poor performance of TP sensor, ECT sensor
or MAP sensorTP sensor, ECT sensor or MAP sensor
in Section 6E1.
Faulty EGR valve (if equipped) EGR system in Section 6E1.
Faulty fuel injector(s) Diagnostic Flow Table B-1.
Faulty ECM
Poor valve seating Valves inspection in Section 6A1.
Dragging brakes Trouble diagnosis in Section 5.
Slipping clutch Trouble diagnosis in Section 7C.
Thermostat out of order Thermostat in Section 6B.
Improper tire pressure Refer to Section 3F.
Low Compression Previously outlined
Excessive engine
oil consumption Blown cylinder head gasket Cylinder head in Section 6A1.
Leaky camshaft oil seals Camshaft in Section 6A1.
Sticky piston ring Piston cleaning in Section 6A1.
Worn piston and cylinder Pistons and cylinders inspection in Sec-
tion 6A1.
Worn piston ring groove and ring Pistons inspection in Section 6A1.
Improper location of piston ring gap Pistons assembly in Section 6A1.
Worn or damaged valve stem seal Valves removal and installation in Sec-
tion 6A1.
Worn valve stem Valves inspection in Section 6A1.
Engine hesitates
(Momentary lack of
response as accel-
erator is depressed.
Can occur at all
vehicle speeds.
Usually most severe
when first trying to
make vehicle move,
as from a stop sign.)Spark plug faulty or plug gap out of adjust-
mentSpark plugs in Section 6F1.
Leaky high-tension cord High-tension cords in Section 6F1.
Fuel pressure out of specification Diagnostic Flow Table B-3.
Malfunctioning EGR valve (if equipped) EGR system in section 6E1.
Poor performance of TP sensor, ECT sensor
or MAP sensorTP sensor, ECT sensor or MAP sensor
in Section 6E1.
Faulty fuel injector Diagnostic Flow Table B-1.
Faulty ECM
Engine overheating Refer to “Overheating” section.
Low compression Previously outlined.
Surge
(Engine power vari-
ation under steady
throttle or cruise.
Feels like vehicle
speeds up and
down with no
change in accelera-
tor pedal.)Leaky or loosely connected high-tension cord High-tension cords in Section 6F1.
Faulty spark plug (excess carbon deposits,
improper gap, and burned electrodes, etc.)Spark plugs in Section 6F1.
Variable fuel pressure Diagnostic Flow Table B-3.
Kinky or damaged fuel hose and lines
Faulty fuel pump (clogged fuel filter)
Malfunctioning EGR valve EGR system in Section 6E1.
Poor performance of MAP sensor MAP sensor in Section 6E1.
Faulty fuel injector Diagnostic Flow Table B-1.
Faulty ECM Condition Possible Cause Correction

ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-29
Excessive detona-
tion
(Engine makes con-
tinuously sharp
metallic knocks that
change with throttle
opening. Sounds
like pop corn pop-
ping.)Faulty spark plug Spark plugs in Section 6F1.
Loose connection of high-tension cord High-tension cords in Section 6F1.
Engine overheating Refer to “Overheating” section.
Clogged fuel filter (faulty fuel pump) or fuel
linesDiagnostic Flow Table B-1 or B-2.
Air inhaling from intake manifold or throttle
body gasket
Malfunctioning EGR valve (if equipped) EGR system in Section 6E1.
Poor performance of knock sensor, ECT sen-
sor or MAP sensorKnock sensor in Section 6, ECT sensor
or MAP sensor in Section 6E1.
Faulty fuel injector(s) Diagnostic Flow Table B-1.
Faulty ECM
Excessive combustion chamber deposits Piston and cylinder head cleaning in
Section 6A1.
Engine has no
powerFaulty spark plug Spark plugs in Section 6F1.
Faulty ignition coil with ignitor Ignition coil in Section 6F1.
Leaks, loose connection or disconnection of
high-tension cordHigh-tension cords in Section 6F1.
Faulty knock sensor Knock sensor malfunction in this sec-
tion.
Clogged fuel hose or pipe Diagnostic Flow Table B-3.
Malfunctioning fuel pump Diagnostic Flow Table B-2.
Air inhaling from intake manifold gasket or
throttle body gasket
Engine overheating Refer to “Overheating” section.
Engine has no
powerMalfunctioning EGR valve (if equipped) EGR system inspection in Section 6E1.
Maladjusted accelerator cable play Accelerator cable play in Section 6E1.
Poor performance of TP sensor, ECT sensor
or MAP sensorTP sensor, ECT sensor or MAP sensor
in Section 6E1.
Faulty fuel injector(s) Diagnostic Flow Table B-1.
Faulty ECM
Dragging brakes Trouble diagnosis in Section 5.
Slipping clutch Trouble diagnosis in Section 7C.
Low compression Previously outlined. Condition Possible Cause Correction