Dtc P0974 / P0977: Shift Solenoid "A" Control Circuit High / Shift Solenoid "B" Control Circuit High - Suzuki Grand Vitara 2011 Manual

5A-65 Automatic Transmission/Transaxle:
DTC Troubleshooting
Step
1 Was "A/T System Check" performed?
2 Check shift solenoid valve circuit for ground short
1) Disconnect TCM connectors.
2) Check for proper connection to TCM at terminals "E92-
16" (for shift solenoid valve–A), "E92-15" (for shift
solenoid valve–B).
3) If connection is OK, measure resistance between
terminal "E92-16" (for shift solenoid valve–A), "E92-15"
(for shift solenoid valve–B) of disconnected harness side
TCM connector and ground.
Ω
Is it less than 11
3 Inspection solenoid valve
1) Inspection pressure control solenoid valve referring to
"Solenoid Valves (Shift Solenoid-A, Shift Solenoid-B,
TCC Pressure Control Solenoid and Pressure Control
Solenoid Inspection".
Is check results satisfactory?

DTC P0974 / P0977: Shift Solenoid "A" Control Circuit High / Shift Solenoid "B" Control Circuit High

Wiring Diagram
Refer to "DTC P0973 / P0976: Shift Solenoid "A" Control Circuit Low / Shift Solenoid "B" Control Circuit Low".
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
Voltage of shift solenoid valve TCM terminal is high although TCM
is commanding shift solenoid to turn OFF.
(1 driving cycle detection logic)
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 shift select lever to "D" range.
4) Start vehicle and increase vehicle speed to 60 km/h (37 mile/h) in "D" range.
5) Keep on driving in the speed for 20 seconds and decrease vehicle speed gradually.
6) Stop vehicle.
7) Check DTC, pending DTC and freeze-frame data.
Action
?
Yes
Go to Step 2.
DTC P0973: Shift
solenoid valve-A circuit
is shorted to ground.
DTC P0976: Shift
solenoid valve-B circuit
is shorted to ground.
If circuit is OK, go to
Step 3.
Intermittent trouble or
faulty TCM. Check for
intermittent trouble
referring to "Intermittent
and Poor Connection
Inspection in Section
00", If OK, substitute a
known-good TCM and
recheck.
Trouble Area
• Shift solenoid valve circuit open or shorted to
power circuit.
• Malfunction of shift solenoid valve.
• TCM
No
Go to "A/T System
Check".
Go to Step 3.
Replace defective
solenoid valve referring
to "Solenoid Valves
(Shift Solenoid-A, Shift
Solenoid-B, TCC
Pressure Control
Solenoid and Pressure
Control Solenoid
Removal and
Installation".
S6JB0A5104037