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Suzuki Grand Vitara JB627. Manual - part 217

5A-52 Automatic Transmission/Transaxle:

DTC Troubleshooting

DTC P0751 / P0752: Shift Solenoid-A Performance or Stuck OFF / Shift Solenoid-A Stuck ON

S6JB0B5104028

DTC Detecting Condition and Trouble Area

Table for detecting condition

Step

Action

Yes

Was “A/T System Check” performed?

Go to Step 2.

Go to “A/T System
Check”.

Check TCC solenoid valve for operation referring to
“Solenoid Valves (Shift Solenoid-A, Shift Solenoid-B, Shift
Solenoid-E, TCC Solenoid, Pressure Control Solenoid-A,
Pressure Control Solenoid-B, and Pressure Control
Solenoid-C) Inspection”.

Are they in good condition?

Clean fluid passage or
replace valve body
assembly.

Replace TCC solenoid
valve.

DTC Detecting Condition

Trouble Area

DTC P0751:
4th gear ratio is detected although TCM command is for 1st gear
and 3rd gear ratio is detected although TCM command is for 2nd
gear while vehicle running at 2 km/h (1.5 mile/h) or more in “D”
range after engine being warmed up.
(2 driving cycle detection logic)

• Mechanical malfunction of shift solenoid valve-

• Malfunction of valve body assembly.
• Fluid passage clogged or leaking.
• Mechanical malfunction of automatic

transmission (clutch, brake or gear etc.).

DTC P0752:
When one of the following condition was detected while vehicle
running at 2 km/h (1.5 mile/h) or more in “D” range after engine
being warmed up.
• 2nd gear ratio is detected although TCM command is for 3rd

gear and 1st gear is detected although TCM command is for 4th
gear (See table below *1).

Or
• 2nd gear ratio is detected although TCM command is for 3rd

gear and Neutral gear is detected although TCM command is
for 5th gear (See table below *2).

Or
• 1st gear ratio is detected although TCM command is for 4th

gear and Neutral gear is detected although TCM command is
for 5th gear (See table below *3).

(2 driving cycle detection logic)

TCM output gear position

1st

2nd

3rd

4th

5th

Actual gear position

Stuck OFF (DTC P0751)

4th

3rd

4th

5th

Stuck ON (DTC P0752)

1st

2nd

2nd*1, *2

1st*1, *3

Neutral*2,

Automatic Transmission/Transaxle: 5A-53

DTC Confirmation Procedure

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.

1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool.
3) Start engine and warm it up to normal operating temperature.
4) Shift select lever to “N” and “D” range for each 10 seconds.
5) Start vehicle and increase vehicle speed to 65 km/h (40 mile/h) with throttle position 10% or more.
6) Stop vehicle and turn ignition switch OFF.
7) Repeat Step 3) to 5) one time.
8) Stop vehicle.
9) Check DTC, pending DTC and freeze-frame data.

DTC Troubleshooting

DTC P0756 / P0757: Shift Solenoid-B Performance or Stuck OFF / Shift Solenoid-B Stuck ON

S6JB0B5104029

DTC Detecting Condition and Trouble Area

Step

Action

Yes

Was “A/T System Check” performed?

Go to Step 2.

Go to “A/T System
Check”.

Check shift solenoid valve-A for operation referring to
“Solenoid Valves (Shift Solenoid-A, Shift Solenoid-B, Shift
Solenoid-E, TCC Solenoid, Pressure Control Solenoid-A,
Pressure Control Solenoid-B, and Pressure Control
Solenoid-C) Inspection”.

Are they in good condition?

Clean fluid passage or
replace valve body
assembly.

Replace shift solenoid
valve-A.

DTC Detecting Condition

Trouble Area

DTC P0756:
Gear ratio is detected although TCM command is for 2nd gear and
4th gear ratio is detected although TCM command is for 3rd gear
while vehicle running at 2 km/h (1.5 mile/h) or more in “D” range
after engine being warmed up.
(2 driving cycle detection logic)

• Mechanical malfunction of shift solenoid valve-

• Malfunction of valve body assembly.
• Fluid passage clogged or leaking.
• Mechanical malfunction of automatic

transmission (clutch, brake or gear etc.).

DTC P0757:
When one of the following condition was detected while vehicle
running at 2 km/h (1.5 mile/h) or more in “D” range after engine
being warmed up.
• 2nd gear ratio is detected although TCM command is for 1st

gear and Neutral gear is detected although TCM command is
for 5th gear (See table below *1).

Or
• 3rd gear ratio is detected although TCM command is for 4th

gear and Neutral gear is detected although TCM command is
for 5th gear (See table below *2).

Or
• 2nd gear ratio is detected although TCM command is 1st gear

and 3rd gear ratio is detected although TCM command is 4th
gear.

(2 driving cycle detection logic)

5A-54 Automatic Transmission/Transaxle:

Table for detecting condition

DTC Confirmation Procedure

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.

DTC Troubleshooting

TCM output gear position

1st

2nd

3rd

4th

5th

Actual gear position

Stuck OFF (DTC P0756)

1st

4th

5th

Stuck ON (DTC P0757)

2nd*1, *3

2nd

3rd

3rd*2, *3

Neutral*1,

Step

Action

Yes

Was “A/T System Check” performed?

Go to Step 2.

Go to “A/T System
Check”.

Check shift solenoid valve-B for operation referring to
“Solenoid Valves (Shift Solenoid-A, Shift Solenoid-B, Shift
Solenoid-E, TCC Solenoid, Pressure Control Solenoid-A,
Pressure Control Solenoid-B, and Pressure Control
Solenoid-C) Inspection”.

Are they in good condition?

Clean fluid passage or
replace valve body
assembly.

Replace shift solenoid
valve-B.

Automatic Transmission/Transaxle: 5A-55

DTC P0771 / P0772: Shift Solenoid-E Performance or Stuck OFF / Shift Solenoid-E Stuck ON

S6JB0B5104030

DTC Detecting Condition and Trouble Area

Table for detecting condition

DTC Confirmation Procedure

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.

1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool.
3) Start engine and warm it up to normal operating temperature.
4) Shift select lever to “N” and “D” range for each 10 seconds.
5) Start vehicle and increase vehicle speed to 65 km/h (40 mile/h) with throttle position 10% or more.
6) Stop vehicle.
7) Start vehicle and increase vehicle speed to 65 km/h (40 mile/h) with throttle position 10% or more.
8) Stop vehicle and turn ignition switch OFF.
9) Repeat Step 3) to 7) one time.

10) Stop vehicle.

11) Check DTC, pending DTC and freeze-frame data.

DTC Troubleshooting

DTC Detecting Condition

Trouble Area

DTC P0771:
4th gear ratio is detected although TCM command is for 5th gear
while vehicle running at 2 km/h (1.5 mile/h) or more in “D” range
after engine being warmed up.
(2 driving cycle detection logic)

• Mechanical malfunction of shift solenoid valve-

• Malfunction of valve body assembly.
• Fluid passage clogged or leaking.
• Mechanical malfunction of automatic

transmission (clutch, brake or gear etc.).

DTC P0772:
TCM detected the turn rise of input speed over the specified value
when upshifting 1st to 2nd gear.
(2 driving cycle detection logic)

TCM output gear position

1st

2nd

3rd

4th

5th

Actual gear position

Stuck OFF (DTC P0771)

1st

2nd

3rd

4th

Stuck ON (DTC P0772)

1st

2nd

3rd

4th

5th

Step

Action

Yes

Was “A/T System Check” performed?

Go to Step 2.

Go to “A/T System
Check”.

Check shift solenoid valve-E for operation referring to
“Solenoid Valves (Shift Solenoid-A, Shift Solenoid-B, Shift
Solenoid-E, TCC Solenoid, Pressure Control Solenoid-A,
Pressure Control Solenoid-B, and Pressure Control
Solenoid-C) Inspection”.

Are they in good condition?

Clean fluid passage or
replace valve body
assembly.

Replace shift solenoid
valve-E.

Content .. 215 216 217 218 ..