2008 SUZUKI SWIFT Pin out ecm

Downloaded from www.Manualslib.com manuals search engine 1I-1 Starting System:
Engine
Starting System
Schematic and Routing Diagram
Cranking System Circuit DiagramS7RS0B1902001
Diagnostic Information and Procedures
Cranking System Symptom DiagnosisS7RS0B1904001
Possible symptoms due to starting system trouble would be as follows:
• Starting motor does not run (or runs slowly)
• Starting motor runs but fails to crank engine
• Abnormal noise is heard
Proper diagnosis must be made to determine exactly where the cause of each trouble lies in battery, wiring harness,
(including starting motor switch), starting motor or engine.
Do not remove motor just because starting motor does not run. Check the following items and narrow down scope of
possible causes.
1) Condition of trouble
2) Tightness of battery terminals (including ground cable connection on engine side) and starting motor terminals
3) Discharge of battery
4) Mounting of starting motor
I4RS0A190001-01
1. Pinion drive lever 6. Magnetic switch contacts 11. Ignition & Starter switch
2. Pinion & Over-running clutch 7. Pull-in coil 12. Battery
3. Magnetic switch 8. Starting motor 13. To ECM
4. Hold-in coil 9. Starting motor control relay
5. Plunger 10. A/T: Transmission range switch (shift lever switch)

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-3
Electronic Stability Program ConstructionS7RS0B4601007
ESP® control module/ hydraulic unit
The control module receives signals from each wheel speed sensor, ESP O FF switch, brake master cylinder pressure
sensor, steering angle sensor and yaw rate / G sensor. Ba sed on these signals as information, the control module
judges the vehicle conditions and controls the brake hydraulic pressure by combining the ON/OFF operation of the
solenoid in the hydraulic unit and the pump motor operation.
The hydraulic unit contains an inlet so lenoid valve and an outlet solenoid valve for each wheel as well as a cut
solenoid valve and a low pressure solenoid valve for each hydraulic unit system. Also, a master cylinder pressure
sensor, pump motor, etc. are included. The hydraulic pre ssure control is done in 3 modes of pressure increase,
pressure keeping and pressure reduction.
7
1
2 3
4
5
6
8
9
10
1010
10
1312
11
14
I7RS0B460001-03
1. ESP ® control module 6. Steering angle sensor 11. ESP ® OFF switch
2. Hydraulic unit 7. Stop lamp switch 12. Electronic signal
3. ECM 8. Yaw rate / G sensor 13. CAN signal
4. BCM 9. Brake master cylinder pre ssure sensor 14. Hydraulic circuit
5. Combination meter 10. Wheel speed sensor

Downloaded from www.Manualslib.com manuals search engine 5A-20 Automatic Transmission/Transaxle:
DTC CheckS7RS0B5104006
1) Turn ignition switch OFF.
2) Connect SUZUKI scan tool to DLC (1).
Special tool
(A): SUZUKI scan tool
3) Read DTC according to instructions displayed on SUZUKI scan tool and wr ite it down. Refer to
SUZUKI scan tool operator’s manual for further
details.
4) After completing the check, turn ignition switch OFF
and disconnect SUZUKI scan tool from DLC.
DTC ClearanceS7RS0B5104007
NOTE
DTC and freeze frame data stored in TCM
memory are also cleared in following cases.
Be careful not to clear them before keeping
their record.
• When power to TCM is cut off (by disconnecting battery cable, removing
fuse or disconnecting TCM connector).
• When the same malfunction (DTC) is not detected again during 40 engine warm-up
cycles.

1) Turn ignition switch OFF.
2) Connect SUZUKI scan tool to data link connector (DLC) (1).
Special tool
(A): SUZUKI scan tool
3) Clear DTC according to instructions displayed on SUZUKI scan tool. Refer to SUZUKI scan tool
operator’s manual for further details.
4) After completing the clearance, turn ignition switch OFF and disconnected SUZUKI scan tool from data
link connector (DLC).
)
P1777 TCM lost communication with ECM
(Reception error) Receiving error from ECM detected to TCM for
specified time continuously.
1 driving cycle
) P1778 TCM lost communication with BCM
(Reception error) Receiving error from BCM detected to TCM for
specified time continuously.
*1, 1 driving cycle
) P1878 Torque converter clutch shudder Variation in the output revolution speed of the
specified amplitude and specified cycle is
detected under slip lock-up condition. *1, 20 driving cycle
) P2762 Torque converter clutch pressure
control solenoid control circuit range /
performance Difference between target current of TCC
solenoid valve circuit and monitor current of
TCC solenoid valve ci
rcuit is more than
specification. 1 driving cycle
) P2763 Torque converter clutch pressure
control solenoid control circuit high Too much electric flow is detected on TCC
solenoid circuit.
1 driving cycle
) P2764 Torque converter clutch pressure
control solenoid control circuit range /
performance Difference between target current of TCC
solenoid valve circuit and current of TCC
solenoid valve circuit is more than
specification.
1 driving cycle
DTC No. Detecting item
Detecting condition
(DTC will set when detecting) A
1
(A)I4RS0B510004-01
1
(A)I4RS0B510004-01

Downloaded from www.Manualslib.com manuals search engine 5A-26 Automatic Transmission/Transaxle:
TRANSAXLE RANGE
Transaxle range detected by signal fed from
transmission range sensor.
D RANGE SIGNAL
ON: Signal which TCM require ECM to increase idle
speed
OFF: Signal which TCM does not require ECM to
increase idle speed
THROTTLE POSITION (%)
Throttle opening ratio computed by CAN signal from
ECM.
BRAKE SWITCH
Inputted signal from brake light switch on pedal bracket.
ON: Brake pedal depressed
OFF: Brake pedal released
TORQUE REDUCTION SIGNAL
ON: Signal which TCM require ECM to reduce output
torque at shifting gear
OFF: Signal which TCM does not require ECM to reduce
output torque
ENGINE COOLANT TEMPERATURE ( °C, °F)
Engine coolant temperature computed by CAN signal
from ECM. AIR CONDITIONER SIGNAL
ON: Signal which inform that air conditioner compressor
is turned ON.
OFF: Signal which inform that air conditioner
compressor is not turned ON.
ENGINE TORQUE SIGNAL (N
⋅m)
Engine torque computed by duty pulse signal outputted
from ECM.
SLIP RPM (RPM)
This parameter indicates slip ping rotation in the torque
converter (difference between input shaft rotation and
engine rotation)
MIL REQUEST
ON: Signal which TCM requires combination meter to
turn on malfunction indicator lamp.
OFF: Signal which TCM does not require combination
meter to turn on malf unction indicator lamp.
FUEL CUT FLAG
ON: Signal which inform that fuel cut is operating.
OFF: Signal which inform that fuel cut is not operating.
A/T Basic CheckS7RS0B5104010
This check is important for troubleshooting when TCM has detected no DTC and no abnormality has been noted in
“Visual Inspection”. Fo llow the flow carefully.
Step Action YesNo
1 Was “A/T System Check” preformed? Go to Step 2.Go to “A/T System
Check”.
2 Perform “Road Test”.
Is it OK? Go to Step 3.
Proceed to
“Troubleshooting” in
“Road Test”.
3 Perform “Manual Road Test”.
Is it OK? Go to Step 4.
Proceed to
“Troubleshooting” in
“Manual Road Test”.
4 Perform “Engine Brake Test”.
Is it OK? Go to Step 5.
Proceed to
“Troubleshooting” in
“Engine Brake Test”.
5 Perform “Stall Test”.
Is it OK? Go to Step 6.
Proceed to
“Troubleshooting” in
“Stall Test”.
6 Perform “Time Lag Test”.
Is it OK? Go to Step 7.
Proceed to
“Troubleshooting” in
“Time Lag Test”.
7 Perform “Line Pressure Test”.
Is it OK? Go to Step 8.
Proceed to
“Troubleshooting” in
“Line Pressure Test”.
8 Proceed to “Trouble Diag nosis 1” in “A/T Symptom
Diagnosis”.
Is trouble identified? Repair or replace faulty
parts.
Go to Step 9.

Downloaded from www.Manualslib.com manuals search engine 5A-102 Automatic Transmission/Transaxle:
Operation Check
Check pressure control solenoid valves (Pressure
control solenoid and TCC pressure control solenoid)
operation in the either manner of the following.
Using regulated DC power supply
1) Connect pressure contro l solenoid valve (1) with
regulated DC power supply (2) as shown in figure.
2) Turn regulated DC power supply switch ON and increase voltage of power supply keeping current
within 1.0 A.
3) Check for gradual movement of valve (3) in the direction of arrow “A” as voltage is increased.
4) Check movement of valve (3) in the direction of arrow “B” as voltage is decreased.
5) Turn power supply switch OFF.
CAUTION!
Do not pass current 1.0 A or more, or
pressure control solenoid is burned out.

Not using regulated DC power supply 1) Connect pressure control solenoid valve (1) to battery (2) setting 21 W bulb (4) on the way as
shown in figure.
2) Check for movement of valve (3) in the direction of arrow “A”.
3) Disconnect pressure control solenoid valve (1) from battery (2) and check movement of valve (3) in the
direction of arrow “B” as shown in figure.
CAUTION!
Set 21 W bulb on the way, or pressure control
solenoid valve is burned out.

Transmission Control Module (TCM) Removal
and Installation
S7RS0B5106026
CAUTION!
• TCM and ECM consists of highly precise
parts, therefore when handling it, be
careful not to expose to excessive shock.
• When replacing TCM with used one, all learned contents, which have been stored
in TCM memory by executing learning
control, should be initialized after
replacement.

Removal
1) Disconnect negative cable at battery.
2) If the vehicle is equipped with air bag system, disable air bag system. Refer to “Disabling Air Bag
System in Section 8B”.
3) Disconnect connectors from TCM (1).
4) Remove TCM by removing its bolts.
I2RH0B510064-01
I4RS0A510031-01
1
I4RS0B510007-01

Downloaded from www.Manualslib.com manuals search engine Steering Wheel and Column: 6B-10
5) Tighten new bolts (1) until head of each bolt is broken off.
6) Turn ignition key to “ACC” or “ON” position and check to be sure that st eering shaft (2) rotates
smoothly. Also check for lock operation.
7) Install steering column. Re fer to “Steering Column
Removal and Installation”.
8) If steering lock assembly has replaced, after completing installation, register ignition key
transponder code in ECM referring to “Registration
of the Ignition Key in Section 10C”.
Steering Lower Shaft Removal and InstallationS7RS0B6206010
CAUTION!
Never turn steering wheel while steering
lower shaft is removed.
Should it have been turned and contact coil
have got out of its centered position, it needs
to be centered again. Also, turning steering
wheel more than about two and a half turns
will break contact coil.

Removal
1) Turn steering wheel so that vehicle’s front tires are at straight-ahead position.
2) Turn ignition switch to LOCK position and remove key.
3) Remove steering joint cover.
4) Make alignment marks (4) on lower shaft (1) and shaft joint of steering colu mn (2) and lower shaft (1)
and pinion shaft (3) for a guide during reinstallation.
5) Remove lower shaf t joint bolts (5).
6) Remove steering lower shaft (1). Installation
1) Be sure that front wheels are in straight forward state.
2) Align flat part “A” of steering lower shaft (1) with bolt hole “B” of shaft joint (2) of column as shown. Then
insert lower shaft into shaf t joint of steering column
with matching marks (4).
3) Insert lower shaft (1) into pinion shaft (3) with matching marks (4).
4) Tighten joint bolt (pinion shaft side) (6) to specified
torque first and then joint bolt (steering column side)
(5) to specified torque.
Tightening torque
Steering shaft joint bolt (a ): 25 N·m (2.5 kgf-m,
18.5 lb-ft)
I4RS0B620007-02
I4RS0A620020-01
I6RS0C620002-01

Downloaded from www.Manualslib.com manuals search engine 9C-13 Instrumentation / Driver Info. / Horn:
CD Player
Auto Volume Control System
Remote Audio Control Switch Symptom Diagnosis (If Equipped)S7RS0B9304018
ConditionPossible cause Correction / Reference Item
CD-ROM does not insert Another CD-ROM already inserted Eject CD-ROM.
Circuit fuse blown Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Extraneous material come to be mixed
CD player Clear extraneous material from CD player or
replace radio assembly.
Radio assembly faulty Replace radio assembly.
CD-ROM does not eject Circuit fuse blown Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Extraneous material come to be mixed
in CD player Clear extraneous material from CD player or
replace radio assembly.
Radio assembly faulty Replace radio assembly.
CD player does not load
CD-ROM CD-ROM faulty
—
CD-ROM inserted wit h incorrect side upInsert correctly.
Temperature in cabin is too hot —
Water droplets form on internal lens Dry about 1 hour with power on.
Radio assembly faulty Replace radio assembly.
Sound skips or is noisy CD-ROM faulty —
Driving vibration —
Water droplets form on internal lens Dry about 1 hour with power on.
Radio assembly installed incorrectly Install correctly.
Radio assembly faulty Replace radio assembly.
CD player is operative,
but all speakers does not
sound Wiring and/or grounding faulty
Repair as necessary.
Radio assembly faulty Replace radio assembly.
Individual speaker is
noisy or inoperative Wiring and/or grounding faulty
Repair as necessary.
Speaker faulty Replace speaker.
Radio assembly faulty Replace radio assembly.
Sound quality or volume
is poor CD-ROM faulty
—
Wiring and/or grounding faulty Repair as necessary.
Speaker installed incorrectly Install correctly.
Speaker faulty Replace speaker.
ConditionPossible cause Correction / Reference Item
Sound volume does not
vary according to
changes of vehicle speed Auto volume control system is “OFF”
mode
Select auto volume control.
Vehicle speed signal faulty Check vehicle speed signal referring to
“Vehicle Speed Signal Inspection (For Audio
Unit) (If Equipped)”.
Wiring and/or grounding faulty Repair as necessary.
ECM faulty Check input and output signal of ECM referring
to “Inspection of ECM and Its Circuits in
Section 1A”
Radio assembly faulty Replace radio assembly.
ConditionPossible cause Correction / Reference Item
Audio system is
operative, but remote
control switch does not
control audio system Remote audio control switch faulty
Check remote audio control switch referring to
“Remote Audio Control Switch Inspection (If
Equipped)”.
Contact coil faulty Replace contact coil.
Wiring and/or grounding faulty Repair as necessary.
Radio assembly faulty Replace radio assembly.