2007 SUZUKI SWIFT 12 volt

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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

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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

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With Charging Equipment
CAUTION!
When jump starting engine with charging
equipment, be sure equipment used is 12-
volt and negative ground. Do not use 24-volt
charging equipment. Using such equipment
can cause serious damage to electrical
system or electronic parts.

Battery Dismounting and RemountingS7RS0B1A06002
WARNING!
When handling battery, following safety
precautions should be followed:
• Hydrogen gas is produced by battery. A flame or spark near battery may cause the
gas to ignite.
• Battery fluid is highly acidic. Avoid spilling on clothing or other fabric. Any spilled
electrolyte should be flushed with large
quantity of water and cleaned immediately.

Dismounting
1) Disconnect negative cable (1).
2) Disconnect positive cable (2).
3) Remove retainer (3).
4) Remove battery (4).
Remounting 1) Reverse removal procedure.
2) Tighten battery cables securely.
Water Pump / Generator Drive Belt Tension
Inspection and Adjustment
S7RS0B1A06003
WARNING!
Disconnect negative cable at battery before
checking and adjusting belt tension.

1) Inspect belt for cranks, cuts, deformation, wear and clealiness. If it is necessary to replace belt, refer to
“Water Pump / Generator Drive Belt Removal and
Installation”.
2) Check belt for tension. Belt is in proper tension when it deflects the following specification under thumb
pressure (about 10 kg or 22 lb.).
If belt tension is out of spec ification, go to next steps.
Water pump / generator drive belt tension
“a”
Existing belt: 4.5 – 5.5 mm (0.18 – 0.22 in.) as
deflection / 10 kg (22 lbs)
New belt: 3.5 – 4 mm (0.14 – 0.16 in.)as deflection
/ 10 kg (22 lbs)
5. Body ground bolt
1
3 5
2
4
I4RS0B1A0006-01
“a”
I5JB0A1A0008-01

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Specifications
Charging System SpecificationsS7RS0B1A07001
Battery
Battery
: 48AH/20H, 40.6AH/5H 12 V
Generator
Tightening Torque SpecificationsS7RS0B1A07002
NOTE
The specified tightening torque is also described in the following.
“Generator Unit Components”
“Generator Components”

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
Nominal output
12 V
Rated capacity 48 Ah/20 h
40.6 Ah/5 h
Cold cranking amperes 300 A (DIN)
Ty p e 80A type
Rated voltage 12 V
Nominal output 80A
Permissible max. speed 18,000 r/min.
No-load speed 1200 r/min. (rpm)
Regulated voltage 14.2 – 14.8 V at 25 ° C (77 °F)
Exposed brush length Standard: 16 mm (0.63 in.)
Limit: 5.0 mm (0.02 in.)
Permissible ambient temperature –30 to 100 °C (–22 to 212 °F)
Polarity Negative ground
Rotation Clockwise viewed from pulley side
Fastening partTightening torque
Note
N ⋅mkgf-mlb-ft
Generator bracket bolt 25 2.5 18.0 )
Generator pivot bolt 50 5.0 36.0 )
Generator adjusting bolt 70.7 5.0by the specified
procedure.
)

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Schematic and Routing Diagram
ABS SchematicS7RS0B4502001
INPUTOUTPUT
ABS control moduleWheel speed sensor (LF)
Wheel speed sensor (LR)
Wheel speed sensor (RF)Battery Voltage
Ignition Voltage
Pump motor
driver (transistor)
Solenoid valve power
supply driver (transistor)
Solenoid valve
driver (transistor) Hydraulic unit
Pump motor
LF inlet solenoid valve
LF outlet solenoid valve
LR inlet solenoid valve
LR outlet solenoid valve
RF inlet solenoid valve
RF outlet solenoid valve
RR inlet solenoid valve
RR outlet solenoid valve
Data link connector
ABS hydraulic unit/control
module assembly
Wheel speed sensor (RR)
3 7
2
645
8 12
14
21
15
16
1
13
18
17
19
19
11
10
9
CAN driverStop lamp switch
Engine torque
ECM
ABS warning light
EBD warning light
Combination meter
Torque request
ECMWheel speed signal (LF)
Wheel speed signal (LR)
Wheel speed signal (RF)
Wheel speed signal (RR)
ABS active
I6RS0C450003-03

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DTC ClearanceS7RS0B4504006
WARNING!
When performing a driving test, select a safe
place where there is neither any traffic nor
any traffic accident possibility and be very
careful during testing to avoid occurrence of
an accident.

After repair or replace malfunction part(s), clear all DTCs
by performing the following procedure or using SUZUKI
scan tool.
1) Connect SUZUKI scan tool to data link connector in the same manner as when making this connection
for DTC check.
2) Turn ignition switch to ON position.
3) Erase DTC according to instructions displayed on scan tool. Refer to scan tool operator’s manual for
further derails.
NOTE
For DTC C 1021, C1022, C1025, C1026, C1031,
C1032, C1035, C1036 and C1061, confirm that
ABS warning light turns off after performing
Step 2 of “Test Driving” under “ABS Check”,
and then clear the DTCs.

4) After completing the clear ance, turn ignition switch
OFF and disconnect scan tool from data link
connector.
5) Perform “Driving Test” (S tep 2 of “ABS Check”) and
“DTC Check” and confirm that NO DTC is displayed
on scan tool.
Scan Tool DataS7RS0B4504007
The parameter data below are values measured with the
scan tool when the normally operating vehicle is under
the following conditions. When taking measurements for
comparison by using the scan tool, be sure to check that
the vehicle is under the following conditions.
• Apply parking brake and block wheels.
• Ignition switch ON.
• Turn OFF air conditioner (if equipped).
• Apply no load to power steering (if equipped). (Don’t turn it)
• Turn OFF all electric loads (except ignition).
• No DTC.
• ABS is not operated. (N ormal braking operation)
Scan Tool Data Definition
Battery Volt (V): Battery Voltage is an analog input
signal read by the ABS control module. Certain ABS
control module function s will be modified if the
battery voltage falls below or rises above
programmed thresholds.
Pump Motor Driver (V): This parameter indicates the
operational condition of the pump motor driver
(transistor).
RF Wheel Speed, LF Wheel Speed, RR Wheel Speed and LF Wheel Speed (km/h, MPH): Wheel speed
is an ABS control module inte rnal parameter. It is
computed by reference pulses from the wheel speed
sensor.
Brake Switch (ON, OFF): This switch signal informs
the ABS control modu le whether the brake is active
or not.
Scan Tool
Data Standards Condition
Battery
Voltage 10.0 – 18.0 V —
Pump Motor
Driver 0.0 V —
RF Wheel
Sp ee d 0 km/h, 0.0 MPH Vehicle stop
LF Wheel
Sp ee d 0 km/h, 0.0 MPH Vehicle stop
RR Wheel
Sp ee d 0 km/h, 0.0 MPH Vehicle stop
LR Wheel
Sp ee d 0 km/h, 0.0 MPH Vehicle stop
Brake Switch ONBrake pedal
depressed
OFF Brake pedal released

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ABS Warning Light Comes ON SteadyS7RS0B4504009
Wiring Diagram
Refer to “ABS Warning Light Does Not Come ON at Ignition Switch ON”.
Circuit Description
Operation (ON/OFF) of ABS wa rning light is controlled by ABS contro l module through lamp driver module in
combination meter.
If the Antilock brake system is in good condition, ABS control module turns ABS warning lig ht ON at the ignition switch
ON, keeps it ON for 2 seconds and then turns it OFF. If an abnormality in the system is detected, ABS warning light is
turned ON continuously by ABS c ontrol module. Also, it is turned ON continuously by la mp driver module when the
connector of ABS control module is disconnected.
Troubleshooting 4 Check CAN communication circuit between combination
meter and ABS control module referring to “DTC U1073:
Control Module Communication Bus Off”.
Is CAN communication circuit in good condition? Go to Step 5.
Repair or replace.
5 1) Remove combination meter wit h ignition switch turned
OFF.
2) Check for proper connection to “RED/BLK” and “BLK/ ORN” wire of combinat ion meter connector.
3) If OK, turn ON ignition switch and measure voltage at “PPL/RED” wire of combi nation meter connector and
vehicle body ground.
Is it 10 – 14 V? Go to Step 6.
Repair power supply
circuit for combination
meter.
6 1) Measure resistance between “BLK/ORN” wire of combination meter connector and vehicle body ground.
Is resistance less than 2
Ω? Replace combination
meter.
“BLK/ORN” circuit open
or high resistance.
Step Action Yes No
Step
Action YesNo
1 1) Perform diagnostic trouble code check.
Is there any DTC(s)? Go to applicable DTC
diag. flow.
Go to Step 2.
2 Are main fuses for ABS pump motor and ABS solenoid in
good condition? Go to Step 3.
Replace fuse and check
circuit for short to
ground.
3 1) Turn ignition switch to OFF.
2) Disconnect ABS control module connector.
3) Check for proper connection to ABS control module connector at terminals “E03-7”, “E03-13” and “E03-26”.
4) If OK then turn ignition switch to ON position and measure voltage between terminal “E03-7” and vehicle
body ground.
Is it 10 – 14 V? Go to Step 4.
“GRN/ORN” circuit
open.
4 1) Turn ignition switch to OFF position. 2) Check for proper connection to ABS control module connector at terminals “E03-1” and “E03-14”.
3) If OK then turn ignition switch to ON position and measure voltage between each terminal of “E03-1”,
“E03-14” and vehicle body ground.
Are they 10 – 14 V? Go to Step 5.
“WHT/RED” and/or
“WHT/BLU” circuit
open.

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Serial Data Link Circuit CheckS7RS0B4504011
Inspection
WHT/BLU
BLK12V
12
BLK
E03-14
E03-13
E03-26
WHT/RED
GRN/ORNE03-7WHT/BLUGRN
1
2
3
47
RED/BLK
6
5
11
E03-112V
[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
BLK/ORN
PPL/WHT
8E03-5
912V
+BB
G
B
G1
E03-12
E03-6
REDWHT
11
G28-8
G28-10
REDWHTE46-1
E46-2RED
RED
WHT
WHT
10
11
G37-2
G37-4
I6RS0C450008-01
[A]: ABS hydraulic unit / control module connector (viewed from terminal side)
1. Battery 4. Circuit fuse box 7. Lamp driver module 10. BCM
2. Main fuse box 5. Combination meter 8. Data link connector (DLC) 11. CAN driver
3. Ignition switch 6. ABS warning light 9. To ECM, BCM and SDM 12. ABS hydraulic unit / control module assembly
Step Action YesNo
1 1) Turn ignition switch to ON position.
Does ABS warning light come ON? Go to Step 2.
Go to Step 6.
2 1) Turn ignition switch to OFF position. Are main fuses for ABS pump motor and ABS solenoid in
good condition? Go to Step 3.
Replace fuse and check
for short.
3 1) Disconnect ABS hydraulic unit / control module connector.
2) Check for proper connection to ABS hydraulic unit / control module connector at terminal “E03-7”.
3) If OK then turn ignition switch to ON position and measure voltage between terminal “E03-7” and vehicle
body ground.
Is it 10 – 14 V? Go to Step 4.
“GRN/ORN” wire circuit
open.
4 1) Turn ignition switch to OFF position. 2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E03-1” and “E03-
14”.
3) If OK then turn ignition switch to ON position and measure voltage between each terminal of “E03-1”,
“E03-14” and vehicle body ground.
Are they 10 – 14 V? Go to Step 5.
“WHT/RED” and / or
“WHT/BLU” wire circuit
open.