Speed meter SUZUKI SWIFT 2006 2.G Service Owner's Guide

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-9
CAN Communication System DescriptionS7RS0B5101007
Refer to “CAN Communication System Description in Section 1A” for CAN communication System description. TCM
communicates control data with each control module as follows.
TCM Transmission Data
TCM Reception Data
DATA
TCM
Transmit
Transmission oil temperarure
signal
Torque request signal
Vehicle speed pulse signal
Transmission warning light
signal
Transmission actual gear position
signal
A/T select lever position signal
ECMCombination
meterBCM
I7RS0B510001-03
Engine torque signal
Engine speed signal
Throttle position signal
A/C compressor clutch signal
Engine coolant temperature signal
Brake pedal switch signal
Reception data from ECM
Accelerator pedal position signalI7RS0B510002-03

Downloaded from www.Manualslib.com manuals search engine 5A-10 Automatic Transmission/Transaxle:
Schematic and Routing Diagram
Transmission Control Module (TCM) Wiring DiagramS7RS0B5102001
IG1
115
5
5
8
9
10 7
P
R
N
D
2
L
12
12V 2.5V
5V
12V
5V
12V
12V
12V
12V
WHT
BLK
BLK
BLK
BLK
PPLBLK/RED
BLK/ORN
IG11
RED/BLK
YEL/BLKYEL/BLU
LT GRN/BLK
+BB
WHT/RED
14
20
15
16
17
19
12V18
1
2
3
4
6
13 21
26
24
27
28 29
30
WHT
WHT
RED
RED
WHT
RED
65
16 15 14 13 12 11 43
24 23 2122 10 9 8 721
1920 18 17
C34
17 16
26 25
15 14
65 3
42
13 12
23 2224 11 10 9
21 20 19 87
18
1
C35
[A]
22
25
YELYEL/GRN
WHT
P
N
BRN
LT GRN
ORN
BLK/YEL
BLU/BLK
GRY
LT GRN/BLK WHT/BLU
WHT/BLK
C34-11
C34-12
C34-16
C34-15
C34-14
C34-4
C34-2
C34-1
C34-23 C34-6
C34-24 C34-5
C34-3
RED
GRN
GRN/ORN PNK/BLK
GRN/YEL
LT GRN/BLKC35-6
C35-16
C35-23 C35-25
C35-20
C35-1
C35-8
C35-7
C35-19
C35-18 C34-17 C34-7
4IG11
12V
23
PPL/WHT
LT GRN
I6RS0C510005-01
1. TCM 12. Backup lamp 23. Starter motor relay
2. Input shaft speed sensor 13. Data link connector DLC 24. Ignition switch
3. Output shaft speed sensor 14. Transmission fluid temperature sensor 25. Starter motor
4. ECM 15. Shift solenoid valve-A (No.1) 26. “DOME” fuse
5. CAN driver 16. Shift solenoid valve-B (No.2) 27. “AT ETM” fuse
6. BCM 17. Timing solenoid valve 28. “IG SIG” fuse
7. Meter driver 18. TCC lock-up pressure control solenoid valve 29. “ST SIG” fuse
8. “3” position switch 19. Pressure control solenoid valve 30. “ST MOT” fuse
9. Shift lock solenoid 20. A/T [A]: Terminal arrangement of TCM connector
(viewed from harness side)
10. Brake light switch 21. A/T relay
11. Transmission range sensor 22. Inhibitor switch (including transmission range sensor)

Downloaded from www.Manualslib.com manuals search engine 5A-14 Automatic Transmission/Transaxle:
6. Output shaft speed sensor 13. Shift solenoid valve-A (No.1) 20. Transmission warning light
7. Input shaft speed sensor 14. Transmission range sensor
INPUT OUTPUT
TCMECM
Gear shift control
4th gear inhibit control
Slope shift control
Slip control
Lock up control
Torque control
Line pressure control
Overrun control
Reverse control
Squat control
Input shaft speed sensor
Output shaft speed sensor
"3" position switch ATF temp. sensor
Shift switch
- Range "P" signal
- Range "R" signal
- Range "N" signal
- Range "D" signal
- Range "2" signal
- Range "L" signal
Fail safe function
Self diagnosis
Warning function
ECM
Shift solenoid valve-A
Shift solenoid valve-B
TCC pressure control
solenoid valve
Pressure control
solenoid valve
Signal on CAN
communincation line
COMB. METER
-Engine torque
-Engine speed
-Throttle position
-A/C compressor clutch
-Coolant temperature
-Brake pedal switch -ATF temp.
-Torque request
-Vehicle speed pulse
-Transmission actual gear
position
-A/T select lever position
-Accelerator pedal position
-Transmission warning light
-A/T select lever position
I7RS0B510005-01

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-30 Automatic Transmission/Transaxle:
Troubleshooting
Engine Brake TestS7RS0B5104013
WARNING!
Before test, make sure that there is no vehicle behind so as to prevent rear-end collision.

1) While driving vehicle in 3rd gear of “D” range, shift select lever down to “2” range and check if engine brake
operates.
2) In the same way as in Step 1), check engine brake for operation when select lever is shifted down to “L” range.
3) Engine brake should operate in the test.
Troubleshooting
Stall TestS7RS0B5104014
This test is to check overall performance of automatic tr ansaxle and engine by measuring stall speed at “D” and “R”
ranges. Be sure to perform this test only when transaxle fluid is at normal operating temperature and its level is
between FULL and LOW marks.
CAUTION!
• Do not run engine at stall more than 5 seconds continuously, or fluid temperature may rise excessively high.
• After performing stall test, be su re to leave engine running at idle for longer than 1 minute before
another stall test.

1) Apply parking brake and block wheels.
2) Install tachometer.
3) Start engine with select lever shifted to “P” range.
4) Depress brake pedal fully.
5) Shift select lever to “D” range and depress accelerator pedal fully while watching tachometer. Read engine rpm quickly when it has become constant (stall speed).
6) Release accelerator pedal immediately after stall speed is checked.
7) In the same way, check stall speed in “R” range.
8) Stall speed should be withi n the following specification.
Engine stall speed
Standard: 2100 – 2400 rpm Condition Possible cause Correction / Reference Item
Operated gear is not
correct Faulty valve body component
Replace valve body assembly.
Faulty clutch or brake Inspect clutch and brake. If any parts are faulty,
replace them.
Condition Possible cause Correction / Reference Item
Failure to operate when
shifted down to “2” range Faulty valve body component
Replace valve body assembly.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Failure to operate when
shifted down to “L” range Faulty valve body component
Replace valve body assembly.
Faulty 1st and reverse brake Inspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine 5A-96 Automatic Transmission/Transaxle:
Output Shaft Speed Sensor Removal and
Installation
S7RS0B5106016
Removal
1) Disconnect negative cable at battery.
2) Disconnect output shaft speed sensor connector (2).
3) Remove output shaft speed sensor (1) by removing its bolt.
Installation 1) Apply A/T fluid to output shaft speed sensor O-ring.
2) Install output shaft speed sensor (1) to A/T case and tighten bolt to specified torque.
Tightening torque
Output shaft speed sensor bolt (a): 13 N·m (1.3
kgf-m, 9.5 lb-ft)
3) Connect output shaft speed sensor connector (2) to output shaft speed sensor (1).
4) Connect negative cable to battery.
Output Shaft Speed Sensor InspectionS7RS0B5106017
1) 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 with output shaft speed
sensor driven gear rotated.
If measured voltage (pulse signal) is not as
specified, replace sensor.
Output shaft speed sensor output voltage
Pulse signal of alternating 0 – 1 V and 10 – 14 V 2) Check output shaft speed sensor driven gear (1) for
wear.
Replace if necessary.
Input Shaft Speed Sensor Removal and
Installation
S7RS0B5106018
Removal
1) Disconnect negative cable at battery.
2) Disconnect input shaft speed sensor connector (2).
3) Remove input shaft speed sensor (1) by removing its bolt.
I3RM0B510040-01
I3RM0B510041-01
I2RH0B510045-01
I2RH0B510046-01
I2RH0B510047-01

Downloaded from www.Manualslib.com manuals search engine 6C-4 Power Assisted Steering System:
Schematic and Routing Diagram
EPS System Wiring Circuit DiagramS7RS0B6302001
M
5V
BRNRED/
BLU
BLK
RED
WHT
BLU
GRN
BRN YEL
E52-11
E52-14E52-12
E23-4
E23-26
E23-25 E51-1
E51-2
E52-18
E53-5
E53-7
E52-6
E52-8
E53-2
E52-9
E52-16
E52-19
GRY
PPL/WHT
[A ]
[E ]
12 3
4 5 67
89
11
10
12 13
141516
17 18 19 20
1
2
[B ][C ]
1210 9 8 7654 3 21
16 15 14 13 12 11
26 25 24 2322 21 20 19 18 17
32 31 30 29 28 27
[D]
5V
PPL
E52-4
11
12
13 14
15
10
9
16
12V
5V
5V
12V
REDE52-20E53-6
E53-4
E53-1
7654321
5
REDRED/
BLKWHT
6WHTWHT/BLKWHTBLK
12V
12V
17BLK
GRY
LT GRN
/BLK
E52-1
E52-5
E49-1
GRNGRNWHTBLK
WHY
G28-25G28-31
RED/BLK
18
3
4
4
7 8
4
4
1 2
4
E49-2BLK
I7RS0B630002-01
[A]: Connector “E52” (viewed from harness side) 4. Fuse 12. P/S motor
[B]: Connector “E49” (viewed from harness side ) 5. Left-front wheel speed sensor 13. Shield
[C]: Connector “E51” (viewed from harness side) 6 . Right-front wheel speed sensor 14. Torque sensor
[D]: Connector “G28” (viewed from harness side) 7. Combination meter 15. Torque sensor amplifier
[E]: Connector “E53” (viewed from harness side) 8. “EPS” warning light16. To ECM, BCM, Air bag SDM and ABS control module assembly
1. Main fuse box 9. Date link connector (DLC) 17. ABS/ESP ® control module
2. Ignition switch 10. ECM18. Individual circuit fuse box No.1
3. Junction block assembly 11. P/S control module

Downloaded from www.Manualslib.com manuals search engine 6C-12 Power Assisted Steering System:
Scan Tool Data Definitions
Battery Voltage
This parameter indicates battery positive voltage.
TQS Power Supply (Torque Sensor Power Supply, V)
This parameter indicates the power supply voltage which
the P/S control module supplies to the torque sensor.
TQS Main Torque (Torque Sensor Main Torque, N ⋅m)
The torque sensor is installed to detect the steering force
and the steering directio n. It consists of two
potentiometers and the main torque sensor is one of
these.
TQS Sub Torque (Torque Sensor Sub Torque, N ⋅m)
The torque sensor is installed to detect the steering force
and the steering directio n. It consists of two
potentiometers and the sub-torque sensor is one of
these. Its output characteristics are compared with those
of the main torque sensor.
Assist Torque (N ⋅m)
This parameter is an internal parameter of the P/S
control module. It is obtained by computing the torque
sensor input signal. Motor Control (Motor Control Current, A)
Based on the input signal, the P/S control module
determines the assist amount
and controls the current to
the motor suitable for that a ssist amount. This parameter
indicates that control value.
Motor Monitor (Motor Monitor Current, A)
This parameter indicates the actually measured value of
the current flowing to the motor. The motor circuit
condition is diagnosed by co mparing this parameter with
“Motor Control” parameter described previously.
Vehicle Speed (km/h, MPH)
Vehicle speed signal is fed from BCM. P/S control
module determines the amount of power assist based on
this vehicle speed signal and the torque sensor signal.
Engine Speed (rpm)
Engine speed signal is fed from the ECM so that it can
be used for trouble diagnos is of the electric power
steering system.
Motor Volt (V)
This parameter indicates the voltage between motor
terminals.
Ignition switch (ON, OFF)
This parameter indicates the condition of the power
supply through the ignition switch.
Visual InspectionS7RS0B6304007
Visually check the following pats and system.
P/S System Symptom DiagnosisS7RS0B6304008
This section describes trouble diagnosis of the P/S system parts whose trouble is not indicated by the on-board
diagnostic system (self-diagnostic functi on). When no malfunction is indicated by the on-board diagnostic system
(self-diagnosis function) and those stee ring basic parts as described in “Steering Symptom Diagnosis in Section 6A”
are all in good condition, check the following power steer ing system parts which may be a possible cause for each
symptom of the steering. Inspection Item Referring section
Battery Level, leakage, color “Batte ry Description in Section 1J”
Connectors of electric wire
harness Disconnection friction “Intermittent and Poor
Connection Inspection in Section 00”
Fuses Burning “Cautions in Body Electric al System Servicing in Section 9A”
Parts Installation, damage
Other parts that can be checked visually
Condition Possible cause Correction / Reference Item
Steering wheel feels
heavy (Perform “Steering
Force Check” before
diagnosis.) Steering wheel installed improperly
(twisted)
Install steering wheel correctly.
Poor performance of torque sensor Check torque sensor referring to “Torque
Sensor and Its Circuit Inspection”.
Poor performance of P/S motor Check motor referring to “P/S Motor and Its
Circuit Inspection”.
Steering gear case assembly faulty Replace.
Poor performance of vehicle speed
signal from ECM Check vehicle speed signal circuit referring to
“DTC C1121 / C1123 / C1124: VSS Circuit
Failure”.

Downloaded from www.Manualslib.com manuals search engine 6C-36 Power Assisted Steering System:
Voltage Check1) Remove console box.
2) Check for voltage at each terminal with co nnectors connected to the P/S control module.
NOTE
As each terminal voltage is affected by the battery voltage, confirm if the battery voltage is 11 V or
more when ignition switch is ON.
*: The voltage of this circuit may not be checked by voltmeter. If so, use oscilloscope.

Terminal Wire colorCircuit Normal voltage Remarks
E49-1 GRN Main power supply for
internal memory and P/S
motor 10 – 14 V
—
E49-2 BLK Ground for P/S control
module Below 0.3 V
—
E51-1 BLK Motor output 1 *0 – 1 V
↑↓
10 – 14 V
(“Reference
waveform No.1: ”, “Reference
waveform No.2:
”and “Reference
waveform No.3: ”) • Engine idling and steering wheel at
straight position
• Voltage between “E51-1” and vehicle body ground
E51-2 RED Motor output 2 *0 – 1 V
↑↓
10 – 14 V
(“Reference
waveform No.1: ”, “Reference
waveform No.2: ” and “Reference
waveform No.3: ”) • Engine idling and steering wheel at
straight position
• Voltage between “E51-2” and vehicle body ground
E52-1 LT GRN/BLK Ignition switch signal for P/S
control module 10 – 14 V Ignition switch ON
E52-2 — —— —
E52-3 — —— —
E52-4 PPL Vehicle speed signal *0 – 1 V
↑↓
8 – 14 V
(“Reference
waveform No.9”
under “Inspection of
ECM and Its Circuits in Section 1A”.) • Ignition switch ON
•Front left tire tu
rned quickly with right
tire locked
E52-5 GRY “EPS” warning light 0 V “EPS” warning light OFF
E52-6 BLU Torque sensor signal (Sub) About 0 – 2.5 V
• Steering wheel with left turn
• Out put voltage varies linearly
depending on steering force
About 2.5 V Steering wheel at free
About 2.5 – 6 V • Steering wheel with right turn
• Out put voltage varies linearly
depending on steering force
E52-7 — —— —
E52-8 GRN Main power supply for torque
sensor About 12 V• Ignition switch ON
• Check voltage between “E52-8” and
“E52-9” terminals
E52-9 BRN Ground for torque sensors Below 0.3 V —
E52-10 — —— —

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-47
P/S Motor and Its Circuit InspectionS7RS0B6306013
1) Remove console box.
2) Disconnect motor connector (“E51”) from P/S control module with ignition switch OFF.
3) Check for resistance between terminals of motor connector (“E51”).
If check result is not as specified, replace steering
gear case assembly.
Motor circuit resistance
4) Check for continuity between terminal of motor connector (“E51”) and body ground.
If check result is not as specified, replace steering
gear case assembly.
Motor circuit resistance
5) Hoist vehicle.
6) Connect “E51” connector to P/S control module with ignition switch OFF position.
7) Using ammeter (2), check that P/S motor (1) current is as following table with id ling engine. If check result
is not satisfactory, check P/S control module
referring to “Inspection of P/S Control Module and Its
Circuits”. If OK, replace steering gear case
assembly.
Motor current at hoisted vehicle
“E51-1” and “E51-2” (For motor) About 1 Ω
“E51-2” and body ground No continuity
1. Connector “E51” (viewed from harness side)
E51
11 2
I6RS0C630025-01
Condition When
steering
wheel is left at straight
position: [A] When
steering
wheel is
turned left or right by turning
speed with
90° /sec: [B] When
steering
wheel is kept fully turned left or right
until it stops.: [C]
Motor
current Approx. 0 A Approx.
0 – 4 A Approx.
30 – 45 A
1
32
E51-1
E51-2
[C] [A]
[B] [B]
I6RS0C630022-01