Throttle position sensor SUZUKI SWIFT 2008 2.G Service Repair Manual

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-183
E23-45BLU/
ORNThrottle actuator
control relay output
0 – 1 V Ignition switch turned ON. —
E23-46 LT GRN Radiator cooling
fan relay No.1
output 10 – 14 V
Ignition switch turned ON,
engine coolant temp.:
below 95
°C (203 ° F), or
A/C refrigerant pressure (if
equipped with A/C): below
600 kPa (87 psi) with A/C
switch turned ON while
engine is running. —
0 – 2 V Ignition switch turned ON,
engine coolant temp.: 97.5
°
C (207.5 ° F) or higher, or
A/C refrigerant pressure (if
equipped with A/C): 1100
kPa (159.5 psi) or higher
with A/C switch turned ON
while engine is running.
E23-47 GRY A/C compressor
relay output 10 – 14 V
Engine running, A/C
switch OFF and blower
selector at OFF position.
—
0 – 1 V Engine running, A/C
switch ON and blower
selector at 1st position or
more.
E23-48 GRN Radiator cooling
fan relay No.2 and
No.3 output 10 – 14 V
Ignition switch turned ON,
engine coolant temp.:
below 100
°C (212 °F), or
A/C refrigerant pressure (if
equipped with A/C): below
1200 kPa (174 psi) with A/
C switch turned ON while
engine is running. —
0 – 2 V Ignition switch turned ON,
engine coolant temp.:
102.5
°C (216.5 °F) or
higher, or A/C refrigerant
pressure (if equipped with
A/C): 1500 kPa (217.5 psi)
or higher with A/C switch
turned ON while engine is
running.
E23-49 — — — — —
E23-50 — Ground for shield
wire of APP sensor Below 0.3 V Ignition switch turned ON. —
E23-51 WHT Ground for APP
sensor (sub) Below 0.3 V Ignition switch turned ON. —
E23-52 BLU Ground for APP
sensor (main) Below 0.3 V Ignition switch turned ON. —
E23-53 — — — — —
E23-54 ORN Ground for sensors Below 0.3 V Ignition switch turned ON. —
Terminal
No. Wire
color Circuit Normal voltage Condition Remarks

Downloaded from www.Manualslib.com manuals search engine 1A-190 Engine General Information and Diagnosis:
Reference waveform No.21
Throttle actuator output signal with ignition switch turned
ONReference waveform No.22
Ignition coil signal and fuel injector signal with engine
cranking
Reference waveform No.23
MAP sensor signal (1) with ignition switch turned ON
Measurement
terminal
CH1: “C37-45” to “C37-58”
CH2: “C37-44” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 2 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Ignition switch turned ON and accelerator pedal at full
depressed position
1. Throttle actuator drive signal (“C37-45” terminal)
2. Throttle actuator drive signal (“C37-44” terminal)
3. ON signal
4. OFF signal
5. One duty cycle
I4RS0B110082-02
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-6” to “C37-58”
CH3: “C37-1” to “C37-58”
CH4: “C37-48” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
CH3: 50 V/DIV, CH4: 10 V/DIV
TIME: 200 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at cranking
1. Cylinder reference signal (CMP reference signal)
2. Ignition coil No.1 and No.4 signal
3. No.1 fuel injector signal
4. Engine start signal
Measurement
terminal CH1: “C37-53” to “C37-55”
CH2: “C37-54” to “C37-55”
Oscilloscope
setting CH1: 2 V/DIV, CH2: 1 V/DIV
TIME: 200 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Ignition switch turned ON
2. TP sensor signal
I6RS0C110038-01
I4RS0B110070-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-3
Throttle Valve Operation Check1) Remove air cleaner outlet hose.
2) Turn OFF ignition switch.
3) Move throttle valve with finger to its full open position and check that it moves smoothly.
4) Move throttle valve with fi nger to its completely
closed position and check that it moves smoothly.
5) Take off finger from throttle valve (1) which is at full open position and check that it moves smoothly by
its return spring and open spring force back to
default position (2) (positio n where throttle valve is
open by 6 ° from completely closed position).
6) Take off finger from throttle valve (1) which is at completely closed position and check that it moves
smoothly by its return spring and open spring force
back to default position.
If check result is not satisfactory, replace electric
throttle body assembly. Electric Throttle Body
Assembly Operation Check
1) Remove air cleaner outlet hose.
2) Turn ON ignition switch.
3) Depress accelerator pedal gradually and check that throttle valve moves smoo thly until it opens fully.
4) Release accelerator pedal depressed in Step 3) and check that throttle valve (1) moves back to default
position (2) (position where throttle valve is open by
6° from its completely closed position).
If check result is satisfactory, electric throttle body
system is in good condition. If check result is not
satisfactory, proceed to next step.
5) Perform “Accelerator Pe dal Position (APP) Sensor
Assembly On-Vehicle Inspection (Electric throttle
body model)”, “Throttle Actuator (Motor) Check” and
if check results are not satisfactory, replace electric
throttle body assembly.
If check results are satisfactory, wire circuit and/or
ECM are faulty.
Throttle Actuator (Motor) Check 1) Turn OFF ignition switch.
2) Disconnect connector from electric throttle body assembly.
3) Measure resistance between “M1” terminal (1) and “M2” terminal (2) of electric throttle body assembly.
If measured resistance is out of specified value,
replace electric throttle body assembly.
Throttle actuator (motor) resistance
0.3 – 100 Ω at 20 °C, 68 °F
I4RS0B130004-01
1
2
I4RS0B130005-01
1
2
I4RS0B130005-01
2 1
I4RS0B130023-01

Downloaded from www.Manualslib.com manuals search engine 1C-4 Engine Electrical Devices:
TP Sensor Performance Check1) Remove air cleaner outlet hose.
2) Turn OFF ignition switch.
3) Disconnect connector from electric throttle body assembly.
4) Check TP sensor (main and sub) output voltage as following steps.
a) For TP sensor (main), arrange 3 new 1.5 V batteries (1) in series (c heck that total voltage is
4.5 – 5.0 V) and connect its positive terminal to
“Vin” terminal (2) and negative terminal to
“Ground” terminal (3) of sensor. Then using
voltmeter, connect positive terminal to “Vout 1”
terminal (4) of sensor and negative terminal to
battery.
b) For TP sensor (sub), arrange 3 new 1.5 V batteries (1) in series (c heck that total voltage is
4.5 – 5.0 V) and connect its positive terminal to
“Vin” terminal (2) and negative terminal to
“Ground” terminal (3) of sensor. Then using
voltmeter, connect positive terminal to “Vout2”
terminal (4) of sensor and negative terminal to
battery.
c) Measure output voltage variation while throttle valve is opened and closed as following
specification. If sensor voltage is out of specified value and linear
variation as the following gra
ph, replace electric throttle
body assembly.
TP sensor output voltage
TP sensor (main) [C]: 0.45 – 4.88 V, varying
according to throttle valve opening by finger
(Voltage should vary by 0.04 V for each 1° valve
opening)
TP sensor (sub) [D]: 1.33 – 4.992 V, varying
according to throttle valve opening by finger
(Voltage should vary by about 0.032 V for each 1 °
valve opening)
1
42 3
I4RS0B130007-02
1
3
2 4
I4RS0B130008-01
[E]: Throttle valve opening
[F]: Position where throttle valve is open in default position from completely closed position
[G]: Angle obtained when accelerator pedal is depressed fully (84 °)
[H]: Angle obtained when throttle valve is fully opened with finger (96 °)
[I]: TP sensor (main) output voltage
[J]: TP sensor (sub) output voltage
[D]
[C][J]
(V)
[I]
(V)
[F] [G] [E]
0.45 - 0.75
0.684 - 0.996 3.675 - 4.245 4.000 - 4.880
1.33 - 1.63 1.564 - 1.876 3.883 - 4.453 4.112 - 4.992
[H]
I6RS0C130002-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-5
Electric Throttle Body System CalibrationS7RS0B1306004
NOTE
If working the service described under the
“Precautions of Electric Throttle Body
System Calibration in Section 1A” perform
following steps for electric throttle body
system calibration.

1) If electric throttle body assembly and/or APP sensor
assembly are replaced, perform following steps.
a) Disconnect negative cable at battery for 20 seconds or more for the purpose of clearing
calibration data of closed throttle position from
memory in ECM.
b) Connect negative cable to battery.
2) Keep ignition switch at ON position for 5 seconds or more without running engine.
APP Sensor Assembly On-Vehicle InspectionS7RS0B1306005
1) Check that APP sensor a ssembly has been mounted
to vehicle body properly (no pinched floor carpet,
etc.).
If mounting is not pro perly, reinstall APP sensor
assembly properly refe rring to “APP Sensor
Assembly Removal and Installation”.
2) Connect scan tool to DLC with ignition switch turned OFF.
3) Turn ON ignition switch and select “Data List” mode on scan tool.
4) Check that APP sensor voltage varies as the following graph.
If sensor voltage is out of specified value or does not
vary linearly as the fo llowing graph, check APP
sensor assembly referring to “APP Sensor Assembly
Inspection”.
APP Sensor Assembly Removal and InstallationS7RS0B1306006
CAUTION!
• Do not expose APP sensor assembly to
excessive shock like a dropping it. If APP
sensor assembly has been exposed to
excessive shock, it should be replaced.
• Be careful not to expose sensor section of APP sensor assembly to water.

NOTE
After replacing APP sensor assembly,
perform calibration of th rottle valve referring
to “Electric Throttle Body System
Calibration”.

Removal
1) Disconnect negative cable at battery.
2) Disconnect connector from APP sensor assembly.
3) Remove APP sensor asse mbly from its bracket.
Installation
Reverse removal procedure for installation noting the
following.
• Tighten APP sensor assembly upper nut (1) first and then lower nut (2) to specified torque.
Tightening torque
APP sensor assembly nut (a): 5.5 N·m (0.55 kgf-m,
4.0 lb-ft)
• Connect connector to APP sensor assembly securely.
[A]: APP sensor (main) voltage [D]: Idle position of accelerator pedal
[B]: APP sensor (sub) voltage [E]: Full depressed position of
accelerator pedal
[C]: Voltage
[C]
[B]
[D] [E] [A]
4.65 V
3.85 V
1.55 - 1.65 V
0.75 - 0.85 V
I4RS0B130010-02
1, (a)
2, (a)
I4RS0B130011-01

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 Automatic Transmission/Transaxle: 5A-19
DTC TableS7RS0B5104005
NOTE
• A: Driving cycles when transmission warning light lighting and storing DTC in TCM memory.
• *1: Transmission warning light does not light up but TCM detects and stores DTC.
• For details of driving cycle, refer to “On-Board Diagnostic System Description”.

DTC No.Detecting item Detecting condition
(DTC will set when detecting) A
) P0602 Control module programming error D ata programming error. *1, 1 driving cycle
) P0705 Transmission range sensor circuit
malfunction (PRNDL input) Multiple signals are inputted
simultaneously. 1 driving cycle
) P0707 Transmission range sensor circuit
low No sensor signal is inputted.
2 driving cycles
) P0712 Transmission fluid temperature
sensor “A” circuit low Sensor output voltage is too low.
1 driving cycle
) P0713 Transmission fluid temperature
sensor “A” circuit high Sensor output voltage is too high.
1 driving cycle
) P0717 Input / Turbine speed sensor circuit
no signal No sensor signal is detected although output
speed sensor signal is inputted.
1 driving cycle
) P0722 Output speed sensor circuit no signal No sensor signal is inputted although input
speed sensor signal is inputted. 1 driving cycle
) P0787 Shift / Timing solenoid low Voltage of timing solenoid terminal is low
although TCM is commanding timing solenoid
to turn ON. 1 driving cycle
) P0788 Shift / Timing solenoid high Voltage of timing solenoid terminal is high
although TCM is commanding timing solenoid
to turn OFF. 1 driving cycle
) P0961 Pressure control solenoid “A” control
circuit range / performance Difference between target current of control
solenoid valve circuit and monitor current of
control solenoid valve circuit is more than
specification.
1 driving cycle
) P0962 Pressure control solenoid “A” control
circuit low No electric flow is detected on pressure control
solenoid circuit.
1 driving cycle
) P0963 Pressure control solenoid “A” control
circuit high Too much electric flow is detected on pressure
control solenoid circuit.
1 driving cycle
) P0973 Shift solenoid “A” control circuit low Voltage of shift solenoid terminal is low
although TCM is commanding shift solenoid to
turn ON. 1 driving cycle
) P0974 Shift solenoid “A” control circuit high Voltage of shift solenoid terminal is high
although TCM is commanding shift solenoid to
turn OFF. 1 driving cycle
) P0976 Shift solenoid “B” control circuit low Voltage of shift solenoid terminal is low
although TCM is commanding shift solenoid to
turn ON. 1 driving cycle
) P0977 Shift solenoid “B” control circuit high Voltage of shift solenoid terminal is high
although TCM is commanding shift solenoid to
turn OFF. 1 driving cycle
) P1702 Internal control module memory
check sum error Calculation of current data stored in TCM is not
correct comparing with pre-stored checking
data in TCM.
1 driving cycle
) P1703 CAN invalid data - TCM TCM receives malfunction signal of throttle
position

, engine coolan t temperature, engine
revolution and engine torque from ECM. *1, 1 driving cycle
) P1723 Range select switch malfunction “3” position switch ON signal is inputted
although transmission range switch signal is
inputted P, R, N or L. range. *1, 1 driving cycle
) P1774 Control module communication bus
off Transmitting and receiving error detected to
TCM for specified time continuously.
1 driving cycle

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.