Suzuki Wagon R Plus RB413 User manual

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IMPORTANT
WARNING/CAUTION/NOTE
Please read this manual and follow its instructions carefully. To emphasize special information, the words
WARNING, CAUTION and NOTE have special meanings. Pay special attention to the messages highlighted by
these signal words.
The circle with a slash or a cross on illustllation in this manual means “Do not do this” or “Do not let this happen”.
WARNING:
Indicates a potential hazard that could result in death or injury.
CAUTION:
Indicates a potential hazard that could result in vehicle damage.
NOTE:
Indicates special information to make maintenance easier or instructions clearer.
WARNING:
This service manual is intended for authorized Suzuki dealers and qualified service mechanics only.
Inexperienced mechanics or mechanics without the proper tools and equipment may not be able to
properly perform the services described in this manual.
Improper repair may result in injury to the mechanic and may render the vehicle unsafe for the driver
and passengers.
WARNING:
For vehicles equipped with a 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.
If the air bag system and another vehicle system both need repair, Suzuki recommends that the air
bag system be repaired first, to help avoid unintended air bag system activation.
Do not modify the steering wheel, instrument panel or any other air bag system component (on or
around air bag system components or wiring). Modifications can adversely affect air bag system
performance and lead to injury.
If the vehicle will be exposed to temperatures over 93°C (200°F) (for example, during a paint baking
process), remove the air bag system components beforehand to avoid component damage or unin-
tended activation.
Foreword
This SUPPLEMENTARY SERVICE MANUAL is a supplement to RB413 SERVICE MANUAL. It has been pre-
pared exclusively for the following applicable model.
Applicable model: RB410/RB413 of and after the vehicle identification number below.
If describes only different service information of the above applicable model as compared with RB413 SERVICE
MANUAL. Therefore, whenever servicing the above applicable model, consult this supplement first. And for any
section, item or description not found in this supplement, refer to the related service manual below.
When replacing parts or servicing by disassembling, it is recommended to use SUZUKI genuine parts, tools and
service materials (lubricant, sealants, etc.) as specified in each description.
All information, illustrations and specifications contained in this literature are based on the latest product infor-
mation available at the time of publication approval. And used as the main subject of description is the vehicle of
standard specifications among others. Therefore, note that illustrations may differ from the vehicle being actually
serviced.
The right is reserved to make changes at any time without notice.
RELATED MANUAL:
© COPYRIGHT SUZUKI MOTOR CORPORATION 2003
TSM MMA93S00 280001
TSM MMA33S00 280001
TSM MMB33S00 280001
TSM MMA33S40 280001
Manual Name Manual No.
RB413 SERVICE MANUAL 99500-83E00-01E
Wagon R+ (RB413) SUPPLEMENTARY SERVICE MANUAL 99501-83E00-01E
RB310 SERVICE MANUAL 99500-83E10-01E
Wagon R+ (RB310/RB413) SUPPLEMENTARY SERVICE MANUAL 99501-83E10-01E
Wagon R+ (RB310/RB413) SUPPLEMENTARY SERVICE MANUAL 99501-83E20-01E
RB310/413 WIRING DIAGRAM MANUAL 99512-83E30-669
Table of Contents
GENERAL INFORMATION
Engine and Emission Control System
(G10 Engine)
6E1
0A 6E1
General Information 0A
0B 6E2
Maintenance and Lubrication 0B Engine and Emission Control System
(M13 Engine)
6E2
6F1
HEATING AND AIR CONDITIONING
1A 6F2
Heater and Ventilation
1A
Ignition System (G10 Engine)
6F1 1B 6G
Air Conditioning (Optional) 1B Ignition System (M13 Engine) 6F2
6G1
STEERING, SUSPENSION, WHEELS
AND TIRES
Cranking System (0.9 kw Reduction
Ty pe )
6G
3 6H
3A 6K1
Steering, Suspension, Wheels and Tires
3
Cranking System (0.9 kw No-Reduction
Ty pe )
6G1
3B 6K2
Front Wheel Alignment 3A
3B1
Manual Rack and Pinion 3B Charging System (G10/M13 Engines) 6H
3C 7A
Electrical Power Steering (EPS) System
(If Equipped)
3B1
Exhaust System (G10 Engine)
6K1 3D 7A2
Exhaust System (M13 Engine) 6K2
3E 7B1
Steering Wheel and Column
3C TRANSMISSION, CLUTCH AND
DIFFERENTIAL
3F 7C
Front Suspension 3D
7D
Rear Suspension 3E
Manual Transaxle (G10 Engine)
7A 4A 7F
Wheels and Tires 3F Manual Transaxle (M13 Engine) 7A2
4B
DRIVE SHAFT AND PROPELLER SHAFT Automatic Transaxle (M13 Engine) 7B1
8
Front Drive Shaft (G10/M13 Engines) 4A Clutch (G10/M13 Engines) 7C
5 8A
Propeller Shafts 4B Transfer 7D
5A 8B
BRAKES 5 Rear Differential 7F
5B 8C
Brakes Pipe/Hose/Master Cylinder 5A
BODY ELECTRICAL SERVICE 8 5C 8D
Front Brake 5B
Wiring Diagram
8A 5E1 8G
Parking and Rear Brake 5C Lighting System 8B
Antilock Brake System (ABS)
5E1 Instrumentation/Driver Information 8C 6-1 9
ENGINE
Windows, Mirrors, Security and Locks
8D 6-2 10
General Information and Engine
Diagnosis (G10 Engine)
6-1
Immobilizer Control System (G10/M13
Engines)
8G
6A 10A
6A2 10B
Engine General Information and
Diagnosis (M13 Engine)
6-2
BODY SERVICE 9
6B
RESTRAINT SYSTEM 10 6B2
Engine Mechanical (G10 Engine)
6A
Seat Belt
10A 6C
Engine Mechanical (M13 Engine) 6A2
Air Bag System
10B
Engine Cooling (G10 Engine)
6B
Engine Cooling (M13 Engine) 6B2
Engine Fuel (G10/M13 Engine)
6C
NOTE:
For the screen toned sections in the above table, refer to the same section of Service Manual men-
tioned in FOREWORD of this manual.
GENERAL INFORMATION 0A-1
0A
SECTION 0A
GENERAL INFORMATION
CONTENTS
How to Use This Manual.................................0A-2
Precautions......................................................0A-3
Precaution for Vehicles Equipped with a
Supplemental Restraint (Air Bag) System.....0A-3
Diagnosis...................................................0A-4
Servicing and handling ..............................0A-5
General Precautions .....................................0A-7
Precaution for CAN Communication
System ........................................................0A-10
Precaution for Wheel (with Tire) Removal...0A-10
Precautions for Catalytic Converter.............0A-10
Precaution for Installing Mobile
Communication Equipment .........................0A-10
Precaution in Servicing Full-Time 4WD
Vehicle ........................................................0A-11
Precautions for Electrical Circuit Service ....0A-12
Electrical Circuit Inspection Procedure........0A-15
Open circuit check...................................0A-15
Continuity check......................................0A-16
Voltage check..........................................0A-16
Short circuit check (wire harness to
ground) ....................................................0A-17
Intermittent and Poor Connection ............... 0A-17
Identification Information.............................0A-19
Vehicle Identification Number ..................... 0A-19
Engine Identification Number...................... 0A-19
Transmission Identification Number............ 0A-19
Warning, Caution and Information Labels.. 0A-20
Vehicle Lifting Points ...................................0A-21
When using frame contact hoist.............. 0A-21
When using floor jack.............................. 0A-22
Abbreviations and Symbols May be
Used in This Manual .....................................0A-23
Abbreviations .............................................. 0A-23
Symbols ...................................................... 0A-25
Wire Color Symbols .................................... 0A-25
Fastener Information ....................................0A-26
Metric Fasteners Information ...................... 0A-26
Fastener Strength Identification .................. 0A-27
Standard Tightening Torque ....................... 0A-27
0A-2 GENERAL INFORMATION
How to Use This Manual
1) There is a Table of Contents on the third page of this manual, whereby you can easily find the section that
offers the information you need. Also, there is a Contents on the first page of each section, where the main
items in that section are listed.
2) Each section of this manual has its own pagination. It is indicated at the top of each page along with the Sec-
tion name.
3) The special tool usage and torque specification are given as shown in the figure.
4) A number of abbreviations and symbols are used in the text. For their full explanations, refer to Abbrevia-
tions and Symbols May Be Used In This Manual in this section.
5) The SI, metric and foot-pound systems are used as units in this manual.
6) Diagnosis are included in each section as necessary.
7) At the end of each section, there are descriptions of Special Tool, Required Service Material and Tight-
ening Torque Specification that should be used for the servicing work described in that section.
GENERAL INFORMATION 0A-3
Precautions
Precaution for Vehicles Equipped with a Sup-
plemental Restraint (Air Bag) System
WARNING:
The configuration of air bag system parts are as shown
in the figure. When it is necessary to service (remove,
reinstall and inspect) these parts, be sure to follow
procedures described in Section 10B. Failure to follow
proper procedures could result in possible air bag sys-
tem activation, personal injury, damage to parts or air
bag system being unable to activate when necessary.
If the air bag system and another vehicle system both
need repair, SUZUKI recommends that the air bag sys-
tem be repaired first, to help avoid unintended air bag
system activation.
Do not modify the steering wheel, dashboard, or any
other air bag system components. Modifications can
adversely affect air bag system performance and lead
to injury.
If the vehicle will be exposed to temperatures over
93°C (200°F) (for example, during a paint baking pro-
cess), remove the air bag system components before-
hand to avoid component damage or unintended air
bag system activation.
1. Air bag wire harness
(in instrument panel harness)
5. Contact coil
2. Passenger air bag (inflator) module
(if equipped)
6. Driver air bag (inflator) module
3. SDM 7. Side air bag (inflator) module
(if equipped)
4. Seat belt pretensioner 8. Side sensor (if equipped)
6
2
5
1
3
7
8
4
7
4
8
0A-4 GENERAL INFORMATION
Diagnosis
When troubleshooting air bag system, be sure to follow
Diagnosis in Section 10B. Bypassing these procedures
may result in extended diagnostic time, incorrect diagnosis,
and incorrect parts replacement.
Never use electrical test equipment other than that specified
in this manual.
WARNING:
Never attempt to measure the resistance of the air bag
(inflator) modules (driver, passenger and side) and seat
belt pretensioners (driver and passenger). It is very dan-
gerous as the electric current from the tester may deploy
the air bag or activate the pretensioner.
GENERAL INFORMATION 0A-5
Servicing and handling
WARNING:
Many of service procedures require disconnection of
AIR BAG fuse and all air bag (inflator) module(s) from
initiator circuit to avoid an accidental deployment.
Driver, Passenger and side Air Bag (Inflator) Modules
For handling and storage of a live air bag (inflator)
module, select a place where the ambient temperature
below 65 °C (150 °F), without high humidity and away
from electric noise.
When carrying a live air bag (inflator) module, make
sure the bag opening is pointed away from you. In case
of an accidental deployment, the bag will then deploy
with minimal chance of injury. Never carry the air bag
(inflator) module by the wires or connector on the
underside of the module. When placing a live air bag
(inflator) module on a bench or other surface, always
face the bag up, away from the surface. As the live pas-
senger air bag (inflator) module must be placed with its
bag (trim cover) facing up, place it on the workbench
with a slit (1) or use the workbench vise (2) to hold it
securely at its lower mounting bracket (3). The front
seat back with the live air bag (inflator) module must
be placed with its frontal seat cover facing up. It is also
prohibited to place anything on top of the trim cover
and stack air bag (inflator) modules. This is necessary
so that a free space is provided to allow the air bag to
expand in the unlikely event of accidental deployment.
Otherwise, personal injury may result.
Never dispose of live (undeployed) air bag (inflator)
modules (driver, passenger and side). If disposal is
necessary, be sure to deploy them according to
deployment procedures described in Section 10B
before disposal.
The air bag (inflator) module immediately after deploy-
ment is very hot. Wait for at least half an hour to cool it
off before proceeding the work.
After an air bag (inflator) module has been deployed,
the surface of the air bag may contain a powdery resi-
due. This powder consists primarily of cornstarch
(used to lubricate the bag as it inflates) and by-prod-
ucts of the chemical reaction. As with many service
procedures, gloves and safety glasses should be worn.
[A]: Always carry air bag (inflator) module with trim cover (air bag opening) away from
body.
[B]: Always place air bag (inflator) module on workbench with trim cover (air bag open-
ing) up, away from loose objects.
[C]: Always place with its frontal seat cover facing up, away from loose objects.
[A]
[B]
[C]
0A-6 GENERAL INFORMATION
Even when the accident was light enough not to cause air bags to activate, be sure to inspect sys-
tem parts and other related parts according to instructions under Repair and Inspection Required
After an Accident in Section 10B.
When servicing parts other than air bag system, if shocks may be applied to air bag system compo-
nent parts, remove those parts beforehand.
When handling the air bag (inflator) modules (driver, passenger and side), seat belt pretensioners
(driver and passenger), side sensors or SDM, be careful not to drop it or apply an impact to it. If an
excessive impact was applied, never attempt disassembly or repair but replace it with a new one.
When grease, cleaning agent, oil, water, etc. has got onto air bag (inflator) modules (driver, passen-
ger and side) or seat belt pretensioners (drive and passenger), wipe off immediately with a dry cloth.
Air bag wire harness is included in floor and instrument panel wire harnesses. Air bag wire harness
branched off from floor and instrument panel wire harnesses can be identified easily as it is covered
with a yellow protection tube and it has yellow connectors. Be very careful when handling it.
When an open in air bag wire harness, damaged wire harness, connector or terminal is found,
replace wire harness, connectors and terminals as an assembly.
Do not apply power to the air bag system unless all components are connected or a diagnostic chart
requests it, as this will set a diagnostic trouble code.
Never use air bag system component parts from another vehicle.
When using electric welding, be sure to disconnect all air bag (inflator) module connectors and pre-
tensioner connectors from air bag wire harness respectively.
Never expose air bag system component parts directly to hot air (drying or baking the vehicle after
painting) or flames.
WARNING:
SDM
For handling and storage of a SDM, select a place where the ambient temperature below 65°C
(150°F), without high humidity and away from electric noise.
During service procedures, be very careful when handling a Sensing and Diagnostic Module (SDM).
Never strike or jar the SDM.
Never power up the air bag system when the SDM is not rigidly attached to the vehicle. All SDM and
mounting bracket fasteners must be carefully torqued and the arrow must be pointing toward the
front of the vehicle to ensure proper operation of the air bag system.
The SDM could be activated when powered while not rigidly attached to the vehicle which could
cause deployment and result in personal injury.
WARNING:
Driver and Passenger Seat Belt Pretensioners (If equipped)
For handling and storage of a live seat belt pretensioner, select a place where the ambient tempera-
ture below 65°C (150°F), without high humidity and away from electric noise.
Never carry seat belt pretensioner by wire or connector of pretensioner. When placing a live seat
belt pretensioner on the workbench or some place like that, never put something on seat belt pre-
tensioner. Otherwise, personal injury may result.
Never dispose of live (inactivated) seat belt pretensioners (drive and passenger). If disposal is nec-
essary, be sure to activate them according to activation procedures described in Section 10B before
disposal.
The seat belt pretensioner immediately after activation is very hot. Wait for at least half an hour to
cool it off before proceeding the work.
With many service procedures, gloves and safety glasses should be worn to prevent any possible
irritation of the skin or eyes.
GENERAL INFORMATION 0A-7
WARNING / CAUTION labels are attached on each part of air bag system components. Be sure to fol-
low the instructions.
After vehicle is completely repaired, perform Air Bag Diagnostic System Check in Section 10B.
General Precautions
The WARNING and CAUTION below describe some general precautions that you should observe when servic-
ing a vehicle. These general precautions apply to many of the service procedures described in this manual, and
they will not necessarily be repeated with each procedure to which they apply.
Before starting any service work, cover fenders, seats
and any other parts that are likely to get scratched or
stained during servicing. Also, be aware that what you
wear (e.g, buttons) may cause damage to the vehicles
finish.
When performing service to electrical parts that does
not require use of battery power, disconnect the nega-
tive cable of the battery.
When disconnecting the battery negative cable, record
displayed contents of clock and audio system before
disconnecting and reset them as before after connect-
ing.
WARNING:
Whenever raising a vehicle for service, be sure to follow the instructions under Vehicle Lifting
Points in this section.
When it is necessary to do service work with the engine running, make sure that the parking brake
is set fully and the transmission is in Neutral (for manual transmission vehicles) or Park (for auto-
matic transmission vehicles), Keep hands, hair, clothing, tools, etc. away from the fan and belts
when the engine is running.
When it is necessary to run the engine indoors, make sure that the exhaust gas is forced outdoors.
Do not perform service work in areas where combustible materials can come in contact with a hot
exhaust system. When working with toxic or flammable materials (such as gasoline and refriger-
ant), make sure that the area you work in is well-ventilated.
To avoid getting burned, keep away from hot metal parts such as the radiator, exhaust manifold, tail
pipe, muffler, etc.
New and used engine oil can be hazardous. Children and pets may be harmed by swallowing new or
used oil. Keep new and used oil and used engine oil filters away from children and pets.
Continuous contact with used engine oil has been found to cause [skin] cancer in laboratory ani-
mals. Brief contact with used oil may irritate skin. To minimize your exposure to used engine oil,
wear a long-sleeve shirt and moisture-proof gloves (such as dish washing gloves) when changing
engine oil. If engine oil contacts your skin, wash thoroughly with soap and water. Launder any
clothing or rags if wet with oil, recycle or properly dispose of used oil and filters.
Make sure the bonnet is fully closed and latched before driving. If it is not, it can fly up unexpectedly
during driving, obstructing your view and resulting in an accident.
0A-8 GENERAL INFORMATION
When removing the battery, be sure to disconnect the
negative cable first and then the positive cable. When
reconnecting the battery, connect the positive cable first
and then the negative cable, and replace the terminal
cover.
When removing parts that are to be reused, be sure to
keep them arranged in an orderly manner so that they
may be reinstalled in the proper order and position.
Whenever you use oil seals, gaskets, packing, O-rings,
locking washers, split pins, self-locking nuts, and cer-
tain other parts as specified, be sure to use new ones.
Also, before installing new gaskets, packing, etc., be
sure to remove any residual material from the mating
surfaces.
Make sure that all parts used in reassembly are perfectly
clean.
When use of a certain type of lubricant, bond or sealant
is specified, be sure to use the specified type.
A: Sealant 99000-31250
Be sure to use special tools when instructed.
Special tool
(A): 09917-98221
(B): 09916-58210
GENERAL INFORMATION 0A-9
When disconnecting vacuum hoses, attach a tag
describing the correct installation positions so that the
hoses can be reinstalled correctly.
After servicing fuel, oil, coolant, vacuum, exhaust or
brake systems, check all lines related to the system for
leaks.
For vehicles equipped with fuel injection systems, never
disconnect the fuel line between the fuel pump and
injector without first releasing the fuel pressure, or fuel
can be sprayed out under pressure.
When performing a work that produces a heat exceeding
80°C (176°F) in the vicinity of the electrical parts, remove
the heat sensitive electrical part(s) beforehand.
Use care not to expose connectors and electrical parts
to water which will be a cause of a trouble.
Always be careful not to handle electrical parts (com-
puter, relay, etc.) in a rough manner or drop them.
0A-10 GENERAL INFORMATION
Precaution for CAN Communication System
The loose (1) in the wire harnesses twist of the CAN lines
except around the connector (3) should be within 100 mm
(3.9 in.) Refer to the wiring diagram for the CAN line discrim-
ination. Excessive loosed lines may be influenced by the
electric noise.
Do not connect terminals of the CAN line using a bypass
wire (1). Otherwise, the CAN line may be influenced by the
electric noise.
Precaution for Wheel (with Tire) Removal
Each wheel of this vehicle is installed using wheel bolts. When removing any of these wheels, never
remove all wheel bolts at the same time. Leave at least 1 bolt for each wheel as it is to prevent wheel
from dropping. When removing this remaining 1 bolt, hold wheel and tire so as not to allow them to
come off.
Precautions for Catalytic Converter
For vehicles equipped with a catalytic converter, use only unleaded gasoline and be careful not to let a
large amount of unburned gasoline enter the converter or it can be damaged.
Conduct a spark jump test only when necessary, make it as short as possible, and do not open the
throttle.
Conduct engine compression checks within the shortest possible time.
Avoid situations which can result in engine misfire (e.g. starting the engine when the fuel tank is
nearly empty.)
Precaution for Installing Mobile Communication Equipment
When installing mobile communication equipment such as CB (Citizens-Band) -radio or cellular-tele-
phone, be sure to observe the following precautions.
Failure to follow cautions may adversely affect electronic control system.
Keep the antenna as far away as possible from the vehicles electronic control unit.
Keep the antenna feeder more than 20 cm (7.9 in) away from electronic control unit and its wire har-
nesses.
Do not run the antenna feeder parallel with other wire harnesses.
Confirm that the antenna and feeder are correctly adjusted.
2. Controller
33
2
2
1
1
GENERAL INFORMATION 0A-11
Precaution in Servicing Full-Time 4WD Vehicle
This full-time 4WD vehicle can not be converted to 2WD manually.
Observe the following caution in servicing. Otherwise, front wheels drive rear wheels or vise-versa and
vehicle accidents, drivetrain damage and personal injury may result.
Never perform any of the following types of service
work.
[A]: Testing with 2-wheel chassis dynamometer, speed-
ometer tester or brake tester.
[B]: Driving front wheels, which are jacked up.
[C]: Towing under the condition where either front or
rear wheels can not rotate.
When testing with 2-wheel chassis dynamometer,
speedometer tester or brake tester, be sure to make the
vehicle as front wheel drive by removing propeller shaft.
When using On-vehicle type wheel balancing equipment
(1), be sure to jack up all four wheels, off the ground
completely and support vehicle with safety stands (2).
Be careful of the other wheels, which will rotate at the
same time.
This vehicle should be towed under one of the following
conditions:
With all wheels on a flatbed truck.
With front or rear wheels lifted and a dolly under the
other wheels.
0A-12 GENERAL INFORMATION
Precautions for Electrical Circuit Service
When replacing a fuse, make sure to use a fuse of the
specified capacity. Use of a fuse with a larger capacity
will cause a damage to the electrical parts and a fire.
When disconnecting and connecting coupler, make sure
to turn ignition switch OFF, or electronic parts may get
damaged.
When disconnecting connectors, never pull the wiring
harness. Unlock the connector lock first and then pull
them apart by holding connectors themselves.
When connecting connectors, also hold connectors and
put them together until they lock securely (a click is
heard).
GENERAL INFORMATION 0A-13
When installing the wiring harness, fix it with clamps so
that no slack is left.
When installing vehicle parts, be careful so that the wir-
ing harness is not interfered with or caught by any other
part.
To avoid damage to the harness, protect its part which
may contact against a part forming a sharp angle by
winding tape or the like around it.
Be careful not to touch the electrical terminals of parts
which use microcomputers (e.g. electronic control unit
like as ECM, PCM, P/S controller, etc.). The static elec-
tricity from your body can damage these parts.
Never connect any tester (voltmeter, ohmmeter, or what-
ever) to electronic control unit when its coupler is dis-
connected. Attempt to do it may cause damage to it.
Never connect an ohmmeter to electronic control unit
with its coupler connected to it. Attempt to do it may
cause damage to electronic control unit and sensors.
Be sure to use a specified voltmeter/ohmmeter. Other-
wise, accurate measurements may not be obtained or
personal injury may result. If not specified, use a voltme-
ter with high impedance (M
/ V minimum) or a digital
type voltmeter.
0A-14 GENERAL INFORMATION
When taking measurements at electrical connectors
using a tester probe, be sure to insert the probe (2) from
the wire harness side (backside) of the connector (1).
When connecting meter probe (2) from terminal side of
coupler (1) because it cant be connected from harness
side, use extra care not to bend male terminal of coupler
of force its female terminal open for connection.
In case of such coupler as shown connect probe as
shown to avoid opening female terminal.
Never connect probe where male terminal is supposed
to fit.
When checking connection of terminals, check its male
half for bend and female half for excessive opening and
both for locking (looseness), corrosion, dust, etc.
Before measuring voltage at each terminal, check to
make sure that battery voltage is 11 V or higher. Such
terminal voltage check at low battery voltage will lead to
erroneous diagnosis.
GENERAL INFORMATION 0A-15
Electrical Circuit Inspection Procedure
While there are various electrical circuit inspection methods,
described here is a general method to check its open and short
circuit by using an ohmmeter and a voltmeter.
Open circuit check
Possible causes for the open circuit are as follows. As the cause
is in the connector or terminal in many cases, they need to be
checked particularly carefully.
Loose connection of connector
Poor contact of terminal (due to dirt, corrosion or rust on it,
poor contact tension, entry of foreign object etc.)
Wire harness being open
When checking system circuits including an electronic control unit
such as ECM, TCM, ABS control module, etc., it is important to
perform careful check, starting with items which are easier to
check.
1) Disconnect negative () cable from battery
2) Check each connector at both ends of the circuit being
checked for loose connection. Also check lock condition of
connector if equipped with connector lock.
3) Using a test male terminal, check both terminals of the circuit
being checked for contact tension of its female terminal.
Check each terminal visually for poor contact (possibly
caused by dirt, corrosion, rust entry of foreign object, etc.).
At the same time, check to make sure that each terminal is
locked in the connector fully.
4) Using continuity check or voltage check the following proce-
dure, check the wire harness for open circuit and poor con-
nection with its terminals. Locate abnormality, if any.
1. Check contact tension by inserting and removing just for once.
1. Looseness of crimping
2. Open
3. Thin wire (single strand of wire)
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Suzuki Wagon R Plus RB413 User manual

Category
Cars
Type
User manual
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