Dtc P0751 / P0756 (No. 17 / No. 28): Shift Solenoid-A (No. 1) / -B (No. 2) Performance Or Stuck Off - Suzuki Liana RH413 Service Manual

DTC P0751 / P0756 (No. 17 / No. 28): Shift Solenoid-A (No. 1) / -B (No. 2) Performance or Stuck OFF

DTC Detecting Condition and Trouble Area
[DTC P0751 / DTC No. 17]
DTC detecting condition
• When one of the following condition is detected while
driving at 15 km/h (10 mile/h) or more in "D" range after
engine being warmed up.
• Transaxle gear ratio is detected as same as that of 2nd
gear although TCM command is for 3rd gear.
• Transaxle gear ratio is detected as same as that of 3rd
gear although TCM command is for 2nd gear.
[DTC P0756 / DTC No. 28]
DTC detecting condition
• When one of the following condition is detected while
driving at 15 km/h (10 mile/h) or more in "D" range after
engine being warmed up.
• Transaxle gear ratio is detected as same as that of 3rd
gear although TCM command is for 4th gear.
• Transaxle gear ratio is detected as same as that of 4th
gear although TCM command is for 3rd gear.
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
Step
1 Was "A/T System Check" performed?
2 1) Check shift solenoid valve-A or -B for operation referring
to "Solenoid Valves (Shift Solenoid Valves, TCC
Solenoid Valve and Timing Solenoid Valve) Inspection".
Are they in good condition?
Action
Automatic Transmission/Transaxle:
Trouble area
• Mechanical malfunction of shift solenoid valve-A
(No.1)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of transaxle
Trouble area
• Mechanical malfunction of shift solenoid valve-B
(No.2)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of transaxle
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) Turn O/D off switch OFF. (Confirm "O/D OFF" lamp
does not light.)
5) Shift selector lever to "D" range and hold it for 20
seconds or longer.
6) Drive vehicle with 2nd, 3rd and 4th gear in "D" range
in that order for longer each referring to "Automatic
Gear Shift Diagram".
7) Stop vehicle and turn ignition switch OFF.
8) Report Step 3) to 6) one time.
9) Stop vehicle.
10) Check DTC, pending DTC and freeze frame data, if
available.
Yes
Go to Step 2.
Clean fluid passage or
replace valve body
assembly.
5A-61
S3RH0A5104030
No
Go to "A/T System
Check".
Replace shift solenoid
valve-A or -B.