2008 SUZUKI SWIFT Sensor rpm

Downloaded from www.Manualslib.com manuals search engine 1A-138 Engine General Information and Diagnosis:
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) With ignition switch turned OFF, connect scan tool to DLC
2) Turn ON ignition switch and clear DTC.
3) Make sure that all accessory switches are tuned OFF.
4) Start engine and warm it up to normal operating temperature (ECT approx. 90 – 95 °C, 193 – 203 °F).
5) Turn ON the followi ng accessory switches.
• Head light switch.
• Blower motor switch (max position).
• Rear defogger switch.
6) Increase engine speed to 4000 rpm and keep it for 10 sec or more.
7) Decrease engine speed to idle.
8) Check DTC.
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/ or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors re ferring to “Inspection of ECM and Its Circuits”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and confirm that the trouble has been corrected.

DTC detecting condition Trouble area
• Battery voltage is higher than specification even through generator control is maximum regulation (duty 100%).
• Battery voltage is lower than specification even through generator control is minimum regulation (duty 0%) and electric
load is less than 15 A.
(1 driving cycle detection logic but MIL does not light up) • Generator and/or its circuit
• Electric load current sensor
•ECM
• Generator drive belt
Step
Action YesNo
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2.
Go to “Engine and
Emission Control
System Check”.
2 Generator drive belt check
1) Check generator drive belt tension referring to “Water
Pump / Generator Drive Belt Tension Inspection and
Adjustment in Section 1J”.
Is check result satisfactory? Go to Step 3.
Adjust or replace
generator drive belt.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-141
DTC P1501 / P1502: Electric Load Current Sensor Circuit Low / HighS7RS0B1104059
System and Wiring Diagram
Electric Load Current Sensor Description
Refer to “Generator Control System Description”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) With ignition switch turned OFF, connect scan tool to DLC.
2) Turn ON ignition switch and clear DTC.
3) Make sure that all accessory switch is tuned OFF.
4) Start engine and warm it up to normal operating temperature (ECT approx. 90 – 95 °C, 193 – 203 °F).
5) Increase engine speed to 3000 rpm.
6) In this state, Turn ON following accessory switch.
• Head lights switch.
• Blower motor switch (max position).
• Rear defogger switch.
7) Decrease engine speed to idle.
8) Check DTC.
E23 C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
BLK/WHT
WHT
GRN
4
3 2
E23-29
1
C37-23PNK/BLU
BLK/ORN
BLK/WHT
I5RS0C110014-01
1. Electric load current sensor
3. “IG COIL” fuse
2. ECM 4. Ignition switch
DTC detecting condition Trouble area
P1501:
Electric load current is lower th an specified value (electric load
current sensor voltage is higher than specified value).
(1 driving cycle detection logic but MIL does not light up)
P1502:
Electric load current is higher than specified value (electric load
current sensor voltage is lo wer than specified value).
(1 driving cycle detection logic but MIL does not light up) • Electric load current sensor and/or its circuit
•ECM

Downloaded from www.Manualslib.com manuals search engine 5A-24 Automatic Transmission/Transaxle:
) ENGINE SPEED At engine idle spee d Engine idle speed is displayed
) INPUT SHAFT
REVOLUTION Ignition switch ON and engine stop 0 RPM
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
2300 RPM
(displayed in increments of 50 rpm)
) OUTPUT SHAFT
REVOLUTION At vehicle stop 0 RPM
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
2300 RPM
(displayed in increments of 50 rpm)
) BATTERY
VOLTAGE Ignition switch ON and engine stop Battery voltage is displayed
(8 – 16 V)
) AT F
TEMPERATURE After driving at 60 km/h (37.5 mile/h) for 15 minutes or
more, and A/T fluid temperature around sensor
reaches 70 – 80
°C (158 – 176 °F) 70 – 80
°C (158 – 176 °F)
) SHIFT SOLENOID-
A COMMAND At vehicle stop ON
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
OFF
) SHIFT SOLENOID-
A MONITOR At vehicle stop ON
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
OFF
) SHIFT SOLENOID-
B COMMAND At vehicle stop ON
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
OFF
) SHIFT SOLENOID-
B MONITOR At vehicle stop ON
At 60 km/h (37.5 mile/h) constant speed, 20% or less
throttle opening and 3rd gear (“3” range)
OFF
) TIMING SOLENOID
COMMAND Ignition switch ON and sele
ct lever is in “N” range OFF
For about 0.5 sec. while on gear shifting between 3rd
and 4th or gear shifting “N” to “D” ON
) TIMING SOLENOID
MONITOR Ignition switch ON and sele
ct lever is in “N” range OFF
For about 0.5 sec. while on gear shifting between 3rd
and 4th or gear shifting “N” to “D” ON
) TCC SOLENOID At vehicle stop, closed throttle, engine idle speed and
1st gear 0%
) PRESSURE
CONTROL SOLENOID At vehicle stop, closed throttle, engine idle speed and
1st gear
0%
) VEHICLE SPEED At vehicle stop 0 km/h, 0 MPH
) O/D OFF SWITCH Ignition switch ON Shift select lever to “3” or “2”
range
ON
Shift select lever to other above
range OFF
) TRANSAXLE
RANGE Ignition switch ONSelect lever is in “P” position P
Select lever is in “R
” position R
Select lever is in “N” position N
Select lever is in “D” position D
Select lever is in “3” position D
Select lever is in “2” position 2
Select lever is in “L” position L
) D RANGE SIGNAL Ignition switch ON Select lever is in “P” position
OFF
Select lever is in “R” position ON
Select lever is in “N” position OFF
Select lever is in “D” position ON
Select lever is in “3” position ON
Select lever is in “2” position ON
Select lever is in “L” position ON
) THROTTLE
POSITION Ignition switch ONAccelerator peda
l is depressed 0 – 100% (Varies depending on
depressed value)
Accelerator peda l is released 0%
) BRAKE SWITCH Ignition switch ON Brake pedal is depressed
ON
Brake pedal is released OFF
Scan tool data
Vehicle condition Normal condition / reference
values

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-25
Scan Tool Data Definitions:
GEAR POSITION
Current gear position computed by throttle position
coming from ECM and vehicle speed.
ENGINE SPEED (RPM)
Engine speed computed by reference pulses from
crankshaft position sensor.
INPUT SHAFT REVOLUTION (RPM)
Input shaft revolution computed by reference pulses
coming from input shaft speed sensor on transaxle case.
OUTPUT SHAFT REVOLUTION (RPM)
Output shaft revolution computed by reference pulses
coming from output shaft speed sensor on transaxle
case.
BATTERY VOLTAGE (V)
Battery voltage read by TCM as analog input signal by
TCM.
ATF TEMPERATURE (°C, °F)
ATF temperature decided by signal from transmission
fluid temperature sensor installed on valve body.
SHIFT SOLENOID-A COMMAND
ON: ON command being outputted to shift solenoid
valve-A (No.1)
OFF: ON command not being outputted to shift solenoid
valve-A (No.1)
SHIFT SOLENOID-A MONITOR
ON: Electricity being passed to shift solenoid valve-A
(No.1)
OFF: Electricity not being passed to shift solenoid valve-
A (No.1)
SHIFT SOLENOID-B COMMAND
ON: ON command being outputted to shift solenoid
valve-B (No.2) OFF: ON command not being outputted to shift solenoid
valve-B (No.2)
SHIFT SOLENOID-B MONITOR
ON: Electricity being passed to shift solenoid valve-B
(No.2)
OFF: Electricity not being passed to shift solenoid valve-
B (No.2)
TIMING SOLENOID COMMAND
ON: ON command being outputted to timing solenoid
valve
OFF: ON command not being outputted to timing
solenoid valve
TIMING SOLENOID MONITOR
ON: Electricity being passed to timing solenoid valve
OFF: Electricity not being passed to timing solenoid
valve
TCC SOLENOID
Electric current value ratio between electric current value
being outputted from TCM to solenoid and maximum
value can be outputted by TCM.
PRESSURE CONTROL SOLENOID
Electric current value ratio between electric current value
being outputted from TCM to solenoid and maximum
value can be outputted by TCM.
VEHICLE SPEED (KPH/MPH)
Vehicle speed computed by reference pulse signals
coming from vehicle speed sensor on transaxle case.
O/D OFF SWITCH (“3” position switch)
Inputted signal from “3” position switch in select lever
assembly.
ON: Shift select lever to “3” or “2” range
OFF: Shift select lever to other above range
)
TORQUE
REDUCTION SIGNAL While on gear upshifting with 25% or more throttle
opening
ON
Under condition of not shifting gear OFF
) ENGINE COOLANT
TEMPERATURE Ignition switch ON Engine coolant temperature is
displayed
) AIR CONDITIONER
SIGNAL Ignition switch ON and air conditioner switch OFF OFF
) ENGINE TORQUE
SIGNAL Ignition switch ON and engine stop 0 N
⋅m
) SLIP RPM Engine running at idle speed
and select lever is in “P”
range 0 RPM
Engine running, vehicle stop and select lever is in “D”
range Engine speed is displayed
) MIL REQUEST Ignition switch ON OFF
) FUEL CUT FLAG Ignition switch ON OFFScan tool data Vehicle condition
Normal condition / reference
values

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 Automatic Transmission/Transaxle: 5A-29
Manual Road TestS7RS0B5104012
WARNING!
Carry out test in very little traffic area to prevent an accident.
Test requires 2 persons, a driver and a tester.

The purpose of this test is to judge whether causal factor of trouble which occurred in automatic transaxle is electrical
or mechanical by disconnecting valve body harness co nnector (1) and fixing automatic transaxle gear position.
1) Start engine and warm it up to normal operating temperature.
2) Turn ignition switch to OFF position and disconnect valve body harness connector (1).
3) Turn OFF all electrical loads. With select lever shifted to each ra nge (“L”, “2”, “3” and “D”), drive vehi cle at 1,000 rpm engine speed and then
check vehicle speed by referring to “Fixed gear position”.
If vehicle speed is not as specified in “Fix ed gear position” table, go to troubleshooting.
4) Connect valve body harness connector and clear DTC.
Fixed gear position TCC (lock-up) function
pressure control does not
operate
Malfunction of TCC pressure control
solenoid valve
Inspect. If NG, replace.
Malfunction of shif t solenoid valve-A
and/or -B Inspect. If NG, replace.
Malfunction of brake light switch Inspect. If NG, replace.
Malfunction of engine coolant
temperature sensor Inspect. If NG, replace.
Malfunction of output shaft speed
sensor Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve Inspect. If NG, replace valve body assembly.
Faulty valve body component Replace valve body assembly.
Faulty torque converter Replace.
Condition
Possible cause Correction / Reference Item
Select lever positionFixed gear position Vehicle speed
L range
3rd gearApprox. 25.0 km/h (15.5 mile/h)
2 range
3 range
D range
R range Reverse gear Approx. 10.9 km/h (6.8 mile/h)
I3RM0B510010-01

Downloaded from www.Manualslib.com manuals search engine 5A-46 Automatic Transmission/Transaxle:
Table for Step 4
DTC P0707: Transmission Range Sensor Circuit LowS7RS0B5104024
Wiring Diagram
DTC Detecting Condition and Trouble Area7 1) Check transmission range sensor (switch) referring to
“Transmission Range Sensor (Shift Switch) Inspection
and Adjustment”.
Are check results satisfactory? “RED/BLK”, “PNK/BLK”,
“RED”, “GRN/ORN”,
“GRN”, “GRN/YEL” or
“LT GRN/BLK” circuit
shorted to power circuit
or shorted each other. If
wires and connections
are OK, substitute a
know-good TCM and
recheck.Replace transmission
range sensor.
Step Action Yes No
Terminal
C35-20 C35-1 C35-8 C35-7 C35-19 C35-18
Select lever position P 8 – 14 V 0 V 0 V 0 V 0 V 0 V
R 0 V 8 – 14 V 0 V 0 V 0 V 0 V
N 0 V 0 V 8 – 14 V 0 V 0 V 0 V
D or 3 0 V 0 V 0 V 8 – 14 V 0 V 0 V 2 0 V 0 V 0 V 0 V 8 – 14 V 0 V
L0 V0 V0 V0 V0 V8 – 14 V
1. TCM 3. Backup lamp
2. Transmission range sensor [A]: Terminal arrangem ent of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
Transmission range switch signal (P, R, N, D, 2, or L) is not
inputted for more than 30 seconds when vehicle speed is
faster than 30 km/h (19 mile/h) and engine speed is faster
than 1500 rpm. • Select cable maladjusted
• Transmission range sensor (switch) maladjusted
• Transmission range sensor (switch) or its circuit
malfunction
•TCM
2P
R
N
D 2 L 3
1
PNK/BLK
RED
GRN
GRN/ORN
GRN/YEL
IG11
RED/BLK
LT GRN/BLK
C35-20
C35-1
C35-8
C35-7
C35-19
C35-18
C34
20 19
87
18
1
C35
[A]
I4RS0A510010-01

Downloaded from www.Manualslib.com manuals search engine 6C-10 Power Assisted Steering System:
) C1121 No vehicle speed signal
(60 seconds or more) Vehicle speed signal is 0 km/h
even though engine speed is
more than 4000 rpm for more than
60 seconds continuously (before
elapse of 5 min from engine start)
or vehicle speed signal is 0 km/h
even though engine speed is
more than 2500 rpm for more than
60 seconds continuously (after
elapse of 5 min for engine start). • Vehicle speed signal circuit
• Wheel speed sensor
•ECM
• P/S control module
• ABS control module
• CAN communication circuit
Not
applicable
) C1122 Engine speed signal Engine speed signal is less than
220 rpm for more than 0.8
seconds.
or
Engine speed signal is less than
220 rpm for more than 20
seconds continuously even
though vehicle speed signal is
more than 50 km/h.• Engine speed signal circuit
•ECM
• P/S control module
• Vehicle speed signal
1 driving
cycle
) C1123 No vehicle speed signal
(30 seconds or more) Vehicle speed signal is 0 km/h
with continuously more than 3
driving cycles even though engine
speed is more than 4000 rpm for
more than 30 seconds
continuously (before elapse of 5
min from engine start).
or
vehicle speed signal is 0 km/h
with continuously more than 3
driving cycles even though engine
speed is more than 2500 rpm for
more than 30 seconds
continuously (after elapse of 5 min
for engine start). • Vehicle speed signal circuit
• Wheel speed sensor
•ECM
• P/S control module
• ABS control module
• CAN communication circuit
3 driving
cycles
) C1124 Vehicle speed performance
(Impossible deceleration) Vehicle speed signal is less than 5
km/h for more
than 5 seconds
continuously with more than
specified deceleration speed (–20
m/s
2) from over 20 km/h. Not
applicable
) C1141 P/S motor circuit voltage Voltage between both motor drive
circuits is more than 8.5 V or less
than 0.2 V for 0.5 seconds
continuously while motor is not
drived.
• P/S motor circuit
• P/S motor
• P/S control module1 driving
cycle
) C1142 P/S motor circuit range /
performance Measured motor drive current is
more than 10 A as compared with
target motor drive current. 1 driving
cycle
DTC No. Detecting item
Detecting condition
(DTC will set when detecting) Trouble area MIL