Suzuki Grand Vitara JB416 / JB420 / JB419. Service manual - part 317
5A-59 Automatic Transmission/Transaxle:
DTC P0751 / P0752: Shift Solenoid-A Performance or Stuck OFF / Shift Solenoid-A Stuck ON
S6JB0A5104032
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 60 km/h (37 mile/h) with throttle position 40% 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 Detecting Condition
Trouble Area
DTC P0751:
When one of the following condition was detected while vehicle
running at 5 km/h (3.1 mile/h) or more in “D” range after engine
being warmed up.
• 4th gear ratio is detected although TCM command is for 1st
gear (See table below *1)
Or
• 3rd gear ratio is detected although TCM command is for 2nd
gear (See table below *2).
(2 driving cycle detection logic)
• Mechanical malfunction of shift solenoid valve–
A.
• Malfunction of valve body assembly.
• Fluid passage clogged or leaking.
• Mechanical malfunction of automatic
transmission (clutch, brake or gear etc).
DTC P0752:
2nd gear ratio is detected although TCM command is for 3rd gear
while vehicle running at 5 km/h (3.1 mile/h) or more in “D” range
after engine being warmed up.
(2 driving cycle detection logic)
TCM output gear position
1st
2nd
3rd
4th
Actual gear position
Stuck OFF (DTC P0751)
4th *1
3rd *2
3rd
4th
Stuck ON (DTC P0752)
1st
2nd
2nd
4th
Step
Action
Yes
No
1
Was “A/T System Check” performed?
Go to Step 2.
Go to “A/T System
Check”.
2
Check shift solenoid valve–A for operation referring to
“Solenoid Valves (Shift Solenoid-A, Shift Solenoid-B, TCC
Pressure Control Solenoid and Pressure Control Solenoid
Inspection”.
Are they in good condition?
Clean fluid passage or
replace valve body
assembly.
Replace shift solenoid
valve–A.