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.