Switch SUZUKI SX4 2006 1.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-25
) SHIFT SOLENOID-
B COMMANDAt 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 MONITORAt 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
COMMANDIgnition switch ON and select 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
MONITORIgnition switch ON and select 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 gear0%
) PRESSURE
CONTROL SOLENOIDAt vehicle stop, closed throttle, engine idle speed and
1st gear0%
) VEHICLE SPEED At vehicle stop 0 km/h, 0 MPH
) “3” POSITION
SWITCHIgnition switch ONShift select lever to “3” or “2”
rangeON
Shift select lever to other above
rangeOFF
) TRANSAXLE
RANGEIgnition 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 ONSelect 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
POSITIONIgnition switch ONAccelerator pedal is depressed0 – 100% (Varies depending on
depressed value)
Accelerator pedal is released 0%
) BRAKE SWITCH Ignition switch ONBrake pedal is depressed ON
Brake pedal is released OFF
) TORQUE
REDUCTION SIGNALWhile on gear upshifting with 25% or more throttle
openingON
Under condition of not shifting gear OFF
) ENGINE COOLANT
TEMPERATUREIgnition switch ONEngine coolant temperature is
displayed
) AIR CONDITIONER
SIGNALIgnition switch ON and air conditioner switch OFF OFF
) SLIP RPMEngine running at idle speed and select lever is in “P”
range0 RPM
Engine running, vehicle stop and select lever is in “D”
rangeEngine speed is displayed
) MIL REQUEST Ignition switch ON OFFScan tool data Vehicle conditionNormal condition / reference
values

Downloaded from www.Manualslib.com manuals search engine 5A-26 Automatic Transmission/Transaxle:
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 (VSS) 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
valveTCC 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.
“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
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 duty 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 duty 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.
SLIP RPM (RPM)
This parameter indicates slipping rotation in the torque
converter (difference between input shaft rotation and
engine rotation)

Downloaded from www.Manualslib.com manuals search engine 5A-28 Automatic Transmission/Transaxle:
Troubleshooting
Condition Possible cause Correction / Reference Item
Unable to run in all rangeFaulty valve body componentReplace valve body assembly.
Faulty oil pumpInspect. If NG, replace.
Seized or broken planetary gearInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.
Faulty forward clutchInspect. If NG, replace.
Faulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Damaged drive plateInspect. If NG, replace.
Faulty torque converterReplace.
No gear shift as 3rd gearMalfunction of shift solenoid valve-A
and/or -BInspect. If NG, replace.
Malfunction of timing solenoid valveInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
1
→ 2 upshift fails to
occurMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Faulty 2nd brakeInspect. If NG, replace.
Faulty one-way No.1 clutchInspect. If NG, replace.
2
→ 3 upshift fails to
occurMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Faulty direct clutchInspect. If NG, replace.
3
→ 4 upshift fails to
occurMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of “3” position switchInspect. If NG, replace.
Malfunction of engine coolant
temperature sensorInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of crankshaft position
sensorInspect. If NG, replace.
Malfunction of timing solenoid valveInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Faulty O/D and 2nd coast brakeInspect. If NG, replace.
Gear shift point is
incorrectAbnormal engine conditionInspect and repair engine.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-29
O/D → 3 downshift fails to
occurMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of “3” position switchInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Malfunction of timing solenoid valveInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Faulty forward clutchInspect. If NG, replace.
3
→ 2 downshift fails to
occurMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Faulty one-way No.1 clutchInspect. If NG, replace.
2
→ 1 downshift fails to
occurMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Faulty one-way No.2 clutchInspect. If NG, replace.
TCC (lock-up) function
pressure control does not
operateMalfunction of TCC solenoid valveInspect. If NG, replace.
Malfunction of shift solenoid valve-A
and/or -BInspect. If NG, replace.
Malfunction of brake light switchInspect. If NG, replace.
Malfunction of engine coolant
temperature sensorInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of throttle position sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Faulty torque converterReplace. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-30 Automatic Transmission/Transaxle:
Manual Road TestS6RW0D5104011
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 connector (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 range (“L”, “2”, “3” and “D”), drive vehicle 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 “Fixed gear position” table, go to troubleshooting.
4) Connect valve body harness connector and clear DTC.
Fixed gear position
Troubleshooting
Engine Brake TestS6RW0D5104012
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.
TroubleshootingSelect lever position Fixed gear position Vehicle speed
L range
3rd gear Approx. 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)
1
I5RW0C510010-01
Condition Possible cause Correction / Reference Item
Operated gear is not
correctFaulty valve body componentReplace valve body assembly.
Faulty clutch or brakeInspect clutch and brake. If any parts are faulty,
replace them.
Condition Possible cause Correction / Reference Item
Failure to operate when
shifted down to “2” rangeFaulty valve body componentReplace valve body assembly.
Faulty O/D and 2nd coast brakeInspect. If NG, replace.
Failure to operate when
shifted down to “L” rangeFaulty valve body componentReplace valve body assembly.
Faulty 1st and reverse brakeInspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine 5A-32 Automatic Transmission/Transaxle:
Time Lag TestS6RW0D5104014
This test is to check conditions of clutch, brake and fluid pressure. “Time lag” means time elapsed since select lever is
shifted with engine idling till shock is felt.
1) With chocks placed before and behind front and rear wheels respectively, depress brake pedal.
2) Start engine.
3) With stop watch ready, shift select lever from “N” to “D” range and measure time from that moment till shock is felt.
4) Similarly measure time lag by shifting select lever from “N” to “R” range.
Gear shifting time lag
“N” → “D”: Less than 0.7 sec.
“N” → “R”: Less than 1.2 sec.
NOTE
• When repeating this test, be sure to wait at least one minute after select lever is shifted back to “N”
range.
• Engine should be warmed up fully for this test.
• Repeat test 3 times and take average of those data for final time lag data.

Troubleshooting
Line Pressure TestS6RW0D5104015
Purpose of this test is to check operating conditions of each part by measuring fluid pressure in fluid pressure line.
Line pressure test requires the following conditions.
• Automatic fluid is at normal operating temperature (70 – 80 °C / 158 – 176 °F).
• Fluid is replenished to proper level (between FULL and LOW on dipstick).
• Air conditioner switch is turned OFF.
1) Apply parking brake securely and place chocks against wheels.
2) Remove fluid pressure check hole plug bolt.
3) Attach oil pressure gauge to fluid pressure check hole in transaxle case.
Special tool
(A): 09925–37811–001Condition Possible cause Correction / Reference Item
“N”
→ “D” time lag
exceeds specificationMalfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of pressure control solenoid
valve (Low line pressure)Inspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Clogged oil strainerReplace.
Faulty oil pumpInspect. If NG, replace.
Faulty forward clutchInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.
Leakage from “D” range fluid pressure
circuitOverhaul or replace valve body assembly.
“N”
→ “R” time lag
exceeds specificationMalfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of pressure control solenoid
valve (Low line pressure)Inspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Clogged oil strainerReplace.
Faulty oil pumpInspect. If NG, replace.
Faulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Leakage from “R” range fluid pressure
circuitOverhaul or replace valve body assembly.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-35
Poor 2 → 3 shiftShift solenoid valve-A circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A” and/
or “DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A”. If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Poor 3
→ 4 shiftShift solenoid valve-B circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A” and/
or “DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A”. If NG, repair.
Engine coolant temperature sensor
circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0117: Engine Coolant
Temperature Circuit Low in Section 1A” and/or
“DTC P0118: Engine Coolant Temperature
Circuit High in Section 1A”. If NG, repair.
Crankshaft position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0335: Crankshaft Position
(CKP) Sensor Circuit in Section 1A”. If NG,
repair.
“3” position switch circuit faultyInspect. If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-36 Automatic Transmission/Transaxle:
Poor 4 → 3 shiftShift solenoid valve-B circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Timing solenoid valve circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A” and/
or “DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A”. If NG, repair.
“3” position switch circuit faultyInspect. If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Poor 3
→ 2 shiftShift solenoid valve-A circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A” and/
or “DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A”. If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Poor 2
→ 1 shiftShift solenoid valve-A circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A” and/
or “DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A”. If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Incorrect gear shift pointOutput shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A” and/
or “DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A”. If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-37
Non operate TCC (lock-
up) systemTCC solenoid valve circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Shift solenoid valve-A and/or-B circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor (VSS) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Transmission range sensor circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
Throttle position sensor circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A” and/
or “DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A”. If NG, repair.
Engine coolant temperature sensor
circuit faultyInspect circuit for open, short and intermittent
referring to “DTC P0117: Engine Coolant
Temperature Circuit Low in Section 1A” and/or
“DTC P0118: Engine Coolant Temperature
Circuit High in Section 1A”. If NG, repair.
Brake light switch circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck.
ECMSubstitute a known-good ECM and recheck.
Higher or lower stall
speedPressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck.
Excessive “N”
→ “D” or
“N”
→ “R” time lagPressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
Transmission fluid temperature sensor
circuit faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck.
Higher or lower line
pressurePressure control solenoid valve circuit
faultyInspect circuit for open, short and intermittent.
If NG, repair.
TCMSubstitute a known-good TCM and recheck. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-38 Automatic Transmission/Transaxle:
Trouble Diagnosis 2
On-vehicle repair
Condition Possible cause Correction / Reference Item
Unable to run in all rangeFaulty valve body componentReplace valve body assembly.
Excessive shift shockEngine abnormal conditionInspect and repair engine.
Malfunction of shift solenoid valve-A
and/or -BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of timing solenoid valve only
when N → D or 3 ↔ 4 shiftingInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Malfunction of brake light switch except
N → D or N → R shiftingInspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Malfunction of crankshaft position
sensorInspect referring to “Camshaft Position (CMP)
Sensor Inspection in Section 1C”. If NG,
replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Poor 1
→ 2 shiftMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Poor 2
→ 3 shiftMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.