Suzuki Grand Vitara JB627. Manual — part 213
5A-36 Automatic Transmission/Transaxle:
Higher or lower line
pressure
Pressure control solenoid valve-A circuit
faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
TCM
Substitute a known-good TCM and recheck.
Excessive shock at “N”
→
“D”
Accelerator pedal position (APP) sensor
circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Input shaft speed sensor circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Shift solenoid valve-A circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Pressure control solenoid valve-A circuit
faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Pressure control solenoid valve-B circuit
faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Transmission fluid temperature sensor A
circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
TCM
Substitute a known-good TCM and recheck.
Excessive shock at “N”
→
“R”
Accelerator pedal position (APP) sensor
circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Shift solenoid valve-A circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Pressure control solenoid valve-A circuit
faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
TCM
Substitute a known-good TCM and recheck.
Excessive shock at shift
up and down
Accelerator pedal position (APP) sensor
circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Shift solenoid valve-A circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Shift solenoid valve-B circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Shift solenoid valve-E circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Pressure control solenoid valve-A circuit
faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Pressure control solenoid valve-B circuit
faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Pressure control solenoid valve-C circuit
faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Transmission fluid temperature sensor A
circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
TCM
Substitute a known-good TCM and recheck.
Excessive shock at kick
down
Accelerator pedal position (APP) sensor
circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Shift solenoid valve-A circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Shift solenoid valve-B circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Shift solenoid valve-E circuit faulty
Inspect circuit for open, short and intermittent
trouble. If NG, repair.
Condition
Possible cause
Correction / Reference Item
Automatic Transmission/Transaxle: 5A-37
Trouble Diagnosis 2
On-vehicle repair
Condition
Possible cause
Correction / Reference Item
Unable to run in all range Faulty shift control cable
Inspect. If NG, replace.
Faulty valve body component
Replace valve body assembly.
Poor 1
→
2 shift,
excessive shock or
slippage
Maladjust shift control cable
Adjust.
Faulty transmission range sensor
Inspect. If NG, replace.
Faulty shift solenoid valve-A
Inspect. If NG, replace.
Faulty input shaft speed sensor
Inspect. If NG, replace.
Faulty pressure control solenoid valve-A Inspect. If NG, replace valve body component.
Faulty pressure control solenoid valve-B Inspect. If NG, replace valve body component.
Faulty valve body component
Replace valve body assembly.
Poor 2
→
3 shift,
excessive shock or
slippage
Faulty transmission range sensor
Inspect. If NG, replace.
Faulty input shaft speed sensor
Inspect. If NG, replace.
Faulty pressure control solenoid valve-A Inspect. If NG, replace valve body component.
Faulty pressure control solenoid valve-B Inspect. If NG, replace valve body component.
Faulty valve body component
Replace valve body assembly.
Poor 3
→
4 shift,
excessive shock or
slippage
Faulty transmission range sensor
Inspect. If NG, replace.
Faulty input shaft speed sensor
Inspect. If NG, replace.
Faulty shift solenoid valve-A
Inspect. If NG, replace.
Faulty pressure control solenoid valve-A Inspect. If NG, replace valve body component.
Faulty pressure control solenoid valve-B Inspect. If NG, replace valve body component.
Faulty valve body component
Replace valve body assembly.
Poor 4
→
5 shift,
excessive shock or
slippage
Faulty transmission range sensor
Inspect. If NG, replace.
Faulty shift solenoid valve-A
Inspect. If NG, replace.
Faulty shift solenoid valve-E
Inspect. If NG, replace.
Faulty input shaft speed sensor
Inspect. If NG, replace.
Faulty pressure control solenoid valve-A Inspect. If NG, replace valve body component.
Faulty pressure control solenoid valve-B Inspect. If NG, replace valve body component.
Faulty pressure control solenoid valve-C Inspect. If NG. replace valve body component.
Faulty valve body component
Replace valve body assembly.
Incorrect gear shift point Faulty throttle position sensor
Inspect. If NG, replace.
Faulty input shaft speed sensor
Inspect. If NG, replace.
Faulty output shaft speed sensor
Inspect. If NG, replace.
Faulty power mode switch
Inspect. If NG, replace.
Faulty pressure control solenoid valve-A Inspect. If NG, replace valve body component.
Faulty transmission fluid temperature
sensor A
Inspect. If NG, replace.
TCC (lock-up) function
does not operate
Faulty TCC solenoid valve
Inspect. If NG, replace valve body component.
Faulty valve body component
Replace valve body component.
Faulty torque converter
Replace torque converter.
Excessive shock at “N”
→
“D”
Faulty input shaft speed sensor
Inspect. If NG, replace.
Faulty shift solenoid valve-A
Inspect. If NG, replace.
Faulty pressure control solenoid valve-A Inspect. If NG, replace valve body component.
Faulty transmission fluid temperature
sensor A
Inspect. If NG, replace.
Faulty valve body component
Replace valve body component.
Excessive shock at “N”
→
“R”
Faulty shift solenoid valve-A
Inspect. If NG, replace.
Faulty pressure control solenoid valve-A Inspect. If NG, replace valve body component.
Faulty valve body component
Replace valve body component.
Poor engine brake in
downshift to “3” range
Faulty valve body component
Replace valve body component.
Poor engine brake in
downshift to “L” range
Faulty valve body component
Replace valve body component.
5A-38 Automatic Transmission/Transaxle:
Trouble Diagnosis 3
Off-vehicle repair
Condition
Possible cause
Correction / Reference Item
Unable to run in all range Faulty oil pump
Inspect. If NG, replace.
Seized or broken planetary gear
Inspect. If NG, replace.
Faulty torque converter
Inspect. If NG, replace.
Damaged drive plate
Inspect. If NG, replace.
Unable to run in reverse
position
Faulty reverse clutch
Inspect. If NG, replace.
Faulty 1st & reverse brake
Inspect. If NG, replace.
Poor 1
→
2 shift,
excessive shock or
slippage
Faulty 2nd brake
Inspect. If NG, replace.
Faulty one-way No.1 clutch
Inspect. If NG, replace.
Faulty one-way No.2 clutch
Inspect. If NG, replace.
Poor 2
→
3 shift,
excessive shock or
slippage
Faulty reverse clutch
Inspect. If NG, replace.
Poor 3
→
4 shift,
excessive shock or
slippage
Faulty direct clutch
Inspect. If NG, replace.
Poor 4
→
5 shift,
excessive shock or
slippage
Faulty forward clutch
Inspect. If NG, replace.
Faulty No.1 brake
Inspect. If NG, replace.
TCC (lock-up) function
does not operate
Faulty torque converter
Replace torque converter.
Excessive “N”
→
“D”
Faulty oil pump
Inspect. If NG, replace.
Faulty forward clutch
Inspect. If NG, replace.
Faulty one-way No.3 clutch
Inspect. If NG, replace.
Excessive “N”
→
“R”
Faulty oil pump
Inspect. If NG, replace.
Faulty reverse clutch
Inspect. If NG, replace.
Faulty 1st & reverse brake
Inspect. If NG, replace.
Faulty one-way No.1 clutch
Inspect. If NG, replace.
Poor engine brake in
downshift to “3” range
Faulty 2nd brake
Inspect. If NG, replace.
Poor engine brake in
downshift to “L” range
Faulty 1st & reverse brake
Inspect. If NG, replace.
Automatic Transmission/Transaxle: 5A-39
No Gear Shift to 5th gear
S6JB0B5104018
System Description
TCM does not shift to 5th gear under any of the following condition.
• 4 position switch signal is inputted.
• 4L/N switch is turned ON. (4L mode)
• Engine coolant temperature is lower than 50
°C (122 °F).
• A/T fluid temperature is lower than 15
± 3 °C (59 ± 5.4 °F).
• TCM detects the following DTCs.
DTC P0712, P0713, P0717, P0722, P0752, P0757, P0781, P0797, P0962, P0963, P0966, P0967, P0970, P0971,
P0973, P0974, P0976, P0977, P0985, P0986, P1702, P1703, U0073 and/or U0100
Troubleshooting
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester, on a level road.
Step
Action
Yes
No
1
Was “A/T System Check” performed?
Go to Step 2.
Go to “A/T System
Check”.
2
Check DTC
Is DTC P0712, P0713, P0717, P0722, P0752, P0757,
P0781, P0797, P0962, P0963, P0966, P0967, P0970,
P0971, P0973, P0974, P0976, P0977, P0985, P0986,
P1703, U0073 or U0100 detected?
Perform DTC Flow to
repair and retry.
Go to Step 3.
3
ECT check
1) Warm up engine to normal operating temperature.
2) Check ECT monitored by TCM using scan tool.
Is ECT more than 50
°
C (122
°
F)?
Go to Step 4.
Faulty ECT sensor, its
circuit or engine cooling
system. If OK, substitute
a known-good TCM and
recheck.
4
A/T fluid temperature check
1) Warm up engine to normal operating temperature.
2) Check A/T fluid temperature using scan tool.
Is A/T fluid temperature more than 30
°
C (86
°
F)?
Go to Step 5.
Faulty A/T fluid
temperature sensor or
transmission. If OK,
substitute a known-
good TCM and recheck.
5
“4” position switch signal inspection
1) With ignition switch ON, check voltage between terminal
“E93-9” of TCM connector and ground under the
following conditions.
“4” position switch specification
Shift selector lever to “P”, “N” or “D” range: 2.9 – 3.8
V
Shift selector lever to “R”, “4”, “3” or “2” range: 1.4
– 2.0 V
Is result as specified?
Go to Step 6.
Faulty “4” position
switch or its circuit. If
OK, substitute a known-
good TCM and recheck.
6
“4L/N” switch signal inspection
1) With ignition switch ON, check voltage between terminal
“E93-4” of TCM connector and ground.
“4WD LOW” switch specification
Transfer gear position “4H”: Battery voltage
Transfer gear position “4L”: 0 – 2 V
Is result as specified?
Go to Step 7.
Faulty “4L/N” switch or
its circuit. If OK,
substitute a known-
good TCM and recheck.
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