2006 SUZUKI SWIFT Charging system circuit

Downloaded from www.Manualslib.com manuals search engine Table of Contents 1-v
Ignition Timing Inspection ................................... 1H-8
Specifications ....................................................... 1H-9
Tightening Torque Specifications ........................ 1H-9
Special Tools and Equipmen t ............................. 1H-9
Special Tool ........................................................ 1H-9
Starting System ................. ........................ 1I-1
Schematic and Routing Diagram ......................... 1I-1
Cranking System Circuit Diagram ........................ 1I-1
Diagnostic Information and Procedures ............. 1I-1
Cranking System Symptom Diagnosis ................. 1I-1
Cranking System Test.......................................... 1I-3
Repair Instructions ............................................... 1I-4 Starting Motor Dismounting and Remounting ...... 1I-4
Starting Motor Components ................................. 1I-5
Starting Motor Inspection ..................................... 1I-6
Specifications ........................................................ 1I-9
Cranking System Specifications........................... 1I-9
Tightening Torque Specifications ......................... 1I-9
Special Tools and Equipment .............................. 1I-9
Recommended Service Material .......................... 1I-9
Charging System ............ .......................... 1J-1
General Description ......... .................................... 1J-1
Battery Description ...............................................1J-1
Generator Descripti on ..........................................1J-2
Diagnostic Information and Procedures ............ 1J-4 Battery Inspection ................................................1J-4
Generator Symptom Diagnosis ............................1J-4 Generator Test (Undercharged Battery
Check) ............................................................... 1J-5
Generator Test (Overcharg ed Battery Check) .... 1J-6
Repair Instructions ........... ................................... 1J-6
Jump Starting in Case of Emergency.................. 1J-6
Battery Dismounting and Remounting ................ 1J-7
Water Pump / Generator Drive Belt Tension Inspection and Adjustment ................................ 1J-7
Water Pump / Generator Drive Belt Removal and Installation .................................................. 1J-8
Generator Unit Co mponents ............................... 1J-9
Generator Dismounting a nd Remounting............ 1J-9
Generator Components........ ............................. 1J-10
Generator Insp ection......................................... 1J-11
Specifications ..................................................... 1J-13 Charging System Specifications ....................... 1J-13
Tightening Torque Specifications ...................... 1J-13
Exhaust System .............. ......................... 1K-1
General Description .............................................1K-1
Exhaust System Description ............................... 1K-1
Diagnostic Information and Procedures ............1K-1 Exhaust System Check ....................................... 1K-1
Repair Instructions ........... ...................................1K-2
Exhaust System Components ............................. 1K-2
Exhaust Manifold Removal and Installation ........ 1K-3
Exhaust Pipe and Muffler Removal and Installation ......................................................... 1K-4
Specifications .................... ...................................1K-5
Tightening Torque Specifications ........................ 1K-5

Downloaded from www.Manualslib.com manuals search engine 1C-12 Engine Electrical Devices:
MAF and IAT Sensor InspectionS7RS0B1306020
CAUTION!
Do not heat up MAF and IAT sensor more
than 100 °C (212 °F). Otherwise, MAF and IAT
sensor will be damaged.

• Check sensor O-ring (1) for damage and deterioration. Replace as necessary.
• Blow hot air to temperature sensing part (2) of MAF and IAT sensor (3) using hot air drier (4) and measure
resistance between sensor terminals while heating air
gradually.
If measured resistance does not show such
characteristic as shown, replace MAF and IAT sensor.
IAT sensor resistance
–20 °C (–4 °F): 13.6 – 18.4 k Ω
20 °C (68 °F): 2.21 – 2.69 k Ω
60 °C (140 °F): 0.493 – 0.667 k Ω
Electric Load Current Sensor On-Vehicle
Inspection
S7RS0B1306021
Using SUZUKI Scan Tool
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Check “Battery Current” displayed on scan tool at following condition.
Battery current
Ignition switch ON: 6.5 – 7.5 A
Ignition switch ON, headlight ON: 18.6 – 19.1 A
Ignition switch ON, headlight ON and blower
motor switch is HI position: 27.1 – 27.6 A
Engine running at idle speed, headlight ON,
blower motor switch is HI position and rear
defogger switch ON: 38.1 – 41.7 A
If check result is satisfactory, electric load current sensor
is in good condition.
If check result is not satisf actory, check the following
parts and circuit.
• Electric load current sensor circuit (power, ground and output)
• Following charging system components
– Battery (refer to “Battery Inspection in Section 1J”)
– Generator (refer to “Generator Inspection in Section 1J”)
– Generator output control ci rcuit (refer to “Generator
Test (Undercharged Battery Check) in Section 1J”)
– Generator field coil monitor circuit (refer to “Generator Inspection in Section 1J”)
If electric load current sensor circuit and charging
system is in good condition, electric load current sensor
(1) is faulty.
[A]: Lower limit [D]: Resistance
[B]: Nominal [E]: Temperature
[C]: Upper limit 5. Temperature gauge
200
6832104 140 17640 60 80
(2.45)
(0.58)
1
2
3
4 5
[A] [B]
[E]
[C]
[D]
I4RS0A130012-01
2. Main fuse box
2
1
I5RS0C130001-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-13
Without Using SUZUKI Scan Tool1) Measure sensor voltage between “C37-23” terminal of ECM connector and vehicle body ground referring
to “Inspection of ECM and Its Circuits in Section 1A”.
If check result is satisfactory, electric load current
sensor is in good condition.
If check result is not satisfactory, check the following
parts and circuit.
• Electric load current sensor circuit (power, ground and output)
• Following charging system components – Battery (refer to “Battery Inspection in Section
1J”)
– Generator (refer to “Generator Inspection in Section 1J”)
– Generator output control circuit (refer to “Generator Test (Undercharged Battery Check)
in Section 1J”)
– Generator field coil monitor circuit (refer to “Generator Inspection in Section 1J”) If electric load current sensor circuit and charging
system is in good condition,
electric load current sensor
(1) is faulty.
Specifications
Tightening Torque SpecificationsS7RS0B1307001
Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
2. Main fuse box
2
1
I5RS0C130001-01
Fastening part
Tightening torque
Note
N ⋅mkgf-mlb-ft
ECM mounting bolt 8 0.8 6.0 )
APP sensor assembly nut 5.5 0.55 4.0 )
ECT sensor 15 1.5 11.0 )
Heated oxygen sensor 45 4.5 32.5 )
CMP sensor bolt 10 1.0 7.5 )
CKP sensor bolt 10 1.0 7.5 )
Knock sensor 22 2.2 16.0 )
MAF and IAT sensor screw 1.5 0.15 1.1 )

Downloaded from www.Manualslib.com manuals search engine Charging System: 1J-3
Charging System Circuit
The generator features solid state regulator that it mounted inside the generator. All regulator components are
enclosed into a solid mold, and this unit along with the brus h holder assembly is attached to the rear housing. The
regulator voltage is being controlled by ECM under some cond itions while driving. Refer to “Generator Control System
Description in Section 1A”.
The generator rotor bearings contain enough grease to eliminate the need for periodic lubrication.
Two brushes carry current through the two slip rings to the field coil mounted on the rotor, and under normal conditions
will provide long period of attention-free service.
The stator windings are assembled inside a laminate d core that forms part of the generator frame.
A rectifier bridge connected to the stator windings contains diodes, and electrically changes the stator AC. voltages to
a D.C. voltage which appears at the generator output terminal.
I5JB0A1A0005-01
1. Generator 4. Diode7. Main switch
2. I.C. regulator 5. Field coil (rotor coil)8. Battery
3. Stator coil 6. Charge indicator light9. ECM

Downloaded from www.Manualslib.com manuals search engine 1J-4 Charging System:
Diagnostic Information and Procedures
Battery InspectionS7RS0B1A04001
Common Causes of Failure
A battery is not designed to last indefinitely; however, with proper care, it will provide many years of service. If the
battery performs satisfactorily during te st but fails to operate properly for no apparent reason, the following are some
factors that may point to the cause of trouble:
• Accessories left on overnight or for an extended period without the generator operating.
• Slow average driving speeds for short periods.
• Electrical load exceeding generator output partic ularly with addition of aftermarket equipment.
• Defects in charging system such as high resistance, s lipping drive belt, loose generator output terminal, faulty
generator or voltage regulator, Refer to “Generator Symptom Diagnosis”.
• Battery abuse, including failure to keep battery cable terminals clean and tight or loose battery hold down.
• Mechanical problems in electrical sys tem such as shorted or pinched wires.
Visual Inspection
Check for obvious damage, such as cracked or broken case or cover, that could permit loss of electrolyte. If obvious
damage is noted, replace battery. Determine cause of damage and correct as needed.
Generator Symptom DiagnosisS7RS0B1A04002
CAUTION!
• Do not mistake polarities of “IG” terminal and “L” terminal.
• Do not create short circuit between “IG” and “L” terminals. Always connect these terminals through a lamp.
• Do not connect any load between “L” and “E” terminals.
• When connecting charger or booster battery to vehicle battery, refer to “Jump Starting in Case of Emergency”.

Trouble in charging system will show up as one or more of the following conditions:
1) Faulty indicator lamp operation.
2) An undercharged battery as evidenced by slow cranking or indicator dark.
3) An overcharged battery as evidenced by ex cessive spewing of electrolyte from vents.
Condition Possible cause Correction / Reference Item
Noisy generator Loose drive belt Adjust or replace drive belt.
Loose drive belt pulley Tighten by specified torque.
Loose mounting bolts Tighten by specified torque.
Worn or dirty bearings Replace.
Defective diode or stator Replace.
Charge light does not
light with ignition ON and
engine off Fuse blown
Replace fuse and check for shorted circuit.
Indicator lamp (LED) faulty Replace combination meter.
Wiring connection loose Tighten loose connection.
IC regulator or field coil faulty Replace.
Poor contact between brush and slip
ring Repair or replace.
Charge light does not go
out with engine running
(battery requires frequent
recharging) Drive belt loose or worn
Adjust or replace drive belt.
IC regulator or generator faulty Replace.
Wiring faulty Repair wiring.

Downloaded from www.Manualslib.com manuals search engine Charging System: 1J-5
Generator Test (Undercharged Battery Check)S7RS0B1A04003
This condition, as evidenced by slow cranking or
indicator clear with dark or light yellow dot can be
caused by one or more of the following conditions even
though indicator lamp may be operating normal.
The following procedure also applies to cars with
voltmeter and ammeter.1) Make sure that undercharged condition has not been caused by accessories left on for extended period of
time.
2) Check drive belt for proper tension.
3) If battery defect is suspected, refer to “Battery Description”.
4) Inspect wiring for defects. Check all connections for tightness and cleanliness, battery cable connections
at battery, starting motor, ignition ground cable and
no “C” terminal circuit at ground.
5) Connect switch (6), load (5), battery (4), voltmeter (3) and ammeter (2) to generator (1) as shown in
figure.
Voltmeter: Set between generator “B” terminal
and ground.
Ammeter: Set between generator “B” terminal
and battery (+) terminal.
NOTE
Use fully charged battery.

6) Measure current and voltage.
No-Load Check 1) Run engine from idling up to 2000 rpm and read meters.
NOTE
Turn off switches of all accessories (wiper,
heater etc.).

Specification for undercharged battery (No-load
check)
Current: 10 A
Voltage: 14.2 – 14.8 V (at 20 °C, 68 °F)
NOTE
Consideration should be taken that voltage
will differ somewhat with regulator case
temperature as shown in figure.

2) Using service wire, ground “C” terminal (1) of
generator.
3) Measure voltage between “B” terminal of generator and body ground.
Voltage: 12.5 – 13.1 V (at 20 °C, 68 °F)
• If voltage is higher than standard value
If voltage is higher than standard value, check ground
of brushes.
If brushes are not grounded, replace IC regulator.
If voltage is lower than standard value, proceed to the
following check.
Load Check 1) Run engine at 2000 rpm and turn on head light and blower motor.
2) Measure current. If measure current is less than 30 A, repair or
replace generator.
IYSQ011A0007-01
[A]: Regulated voltage (V)
[B]: Heat sink temperature ( °C)
16.0
15.5
15.0
14.5
14.0
13.5
13.0
-30 0 20
[A]
[B]
68
22120 (˚C)
248 (˚F)
(V)
I6RS0B1A1002-01
I5JB0A1A0011-01

Downloaded from www.Manualslib.com manuals search engine 1J-6 Charging System:
Generator Test (Overcharged Battery Check)S7RS0B1A04004
1) To determine battery condition, refer to “Battery Description”.
2) If obvious overcharge condition exists as evidenced by excessive spewing of electrolyte, measure
generator “B” terminal voltage at engine 2000 rpm. 3) If measured voltage is higher than upper limit value,
proceed to disassemble generator.
4) Check ground of brushes. If brushes are not grounded, replace IC regulator. Then check field coil
for grounds and shorts, referring to “Generator
Inspection”.
Repair Instructions
Jump Starting in Case of EmergencyS7RS0B1A06001
CAUTION!
If vehicle is manual transaxle model and has
a catalytic converter, do not push or tow it to
start. Damage to its emission system and/or
to other parts may result.

Both booster and discharged battery should be treated
carefully when using ju mper cables. Follow the
procedure outlined as follows, being careful not to cause
sparks.
WARNING!
• Departure from these conditions or procedure described as follows could
result in:
– Serious personal injury (particularly to eyes) or property damage from such
causes as battery explosion, battery
acid, or electrical burns.
– Damage to electronic components of either vehicle.
• Remove rings, watches, and other jewelry. Wear approved eye protection.
• Be careful so that metal tools or jumper cables do not contact positive battery
terminal (or metal in contact with it) and
any other metal on vehicle, because a
short circuit could occur. • Never expose battery to open flame or
electric spark. Batteries generate gas
which is flammable and explosive.
• Do not allow battery fluid to contact eyes, skin, fabrics, or painted surface as fluid is
a corrosive acid. Flush any contacted area
with water immediately and thoroughly.
• Batteries should always be kept out of reach of children.
• Do not connect negative cable directly to negative terminal of dead battery.

1) Set parking brake and place automatic transaxle in PARK (NEUTRAL on manual transaxle). Turn off
ignition, turn off lights and all other electrical loads.
2) Check electrolyte level. If it is below low level line, add distilled water.
3) Attach end of one jumper cable to positive terminal of booster battery and the other end of the same
cable to positive terminal of discharged battery. (Use
12-volt battery only to jump start engine).
4) Attach one end of the remaining negative cable to negative terminal of booster battery, and the other
end to a solid engine ground (such as exhaust
manifold) at least 45 cm (18 in.) away from battery of
vehicle being started.
5) Start engine of vehicle with booster battery and turn off electrical accessories. Then start engine of the
vehicle with discharged battery.
16.0
15.5
15.0
14.5
14.0
13.5
13.0 -30 0 20
[C]
[D]
68
22120 (˚C)
248 (˚F)
(V)
I6RS0C1A0001-02

Downloaded from www.Manualslib.com manuals search engine 4E-21 ABS:
DTC C1057: Power Source CircuitS7RS0B4504014
Wiring Diagram
DTC Detecting Condition
The ABS control module monitors the power source voltage at terminal “E03-14”. When the power source voltage
becomes extremely high or low while vehicle is running at more than 20 km/h (13 MPH), this DTC will be set. As soon
as the power source volta ge becomes normal, the ABS warning light will be turned off and the ABS control module will
return to normal operation, bu t the set DTC will be remain.
DTC Troubleshooting
[A]: ABS hydraulic unit / control module connector (viewed from terminal side) 2. Main fuse box
1. Battery 3. ABS hydraulic unit / control module assembly
E03-14WHT/BLU
1 2
3
BLK
BLK
E03-13
E03-26
[A]
E03
15
16
17
18
19
20
21
22
23
24
25 2
3
4
5
6
7
8
9
10
11
12
1
13
14
26
12V
I6RS0C450011-01
Step
Action YesNo
1 Was “ABS Check” performed? Go to Step 2.Go to “ABS Check”.
2 1) Disconnect ABS hydraulic unit / control module connector with ignition switch turned OFF.
2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E03-14” and
“E03-13”.
3) If OK, then turn ignition switch to ON position and measure voltage between terminals “E03-14” and “E03-
13”.
Is voltage 9.7
± 0.3 V or more? Go to Step 5. Go to Step 3.
3 1) Turn ignition switch to OFF. 2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E03-13” and
“E03-26”.
3) If OK then turn ignition switch to ON and measure resistance between each terminal of “E03-13” and “E03-
26” and vehicle body ground.
Is resistance less than 2
Ω? Go to Step 4. “BLK” wire circuit in
open or high resistance.
4 1) Measure voltage between positive battery terminal and vehicle body ground with engine running.
Is voltage 9.7
± 0.3 V or more? Imperfect short between
“WHT/BLU” wire circuit
and body ground.
Check charging system
referring to “Generator
Test (Undercharged
Battery Check) in
Section 1J”.