Suzuki Grand Vitara 2011 Manual page 1291

DTC Troubleshooting
Step
1 Was "A/T System Check" performed?
2 Check shift solenoid valve circuit for power supply
short
1) Disconnect TCM connectors.
2) Check for proper connection to TCM at terminal "E92-
16" (for shift solenoid valve–A), "E92-15" (for shift
solenoid valve–B).
3) If connection is OK, turn ignition switch ON and measure
voltage between terminal "E92-16" (for shift solenoid
valve–A), "E92-15" (for shift solenoid valve–B) of
disconnected harness side TCM connector and ground.
Is it 0 – 2 V?
3 Check solenoid valve circuit for open
1) Check continuity between terminal "E92-16" (for
solenoid valve-A) or "E92-15" (for solenoid valve-B) of
disconnected harness side TCM connector and ground.
Is it infinity?
4 Inspection solenoid valve
1) Inspection 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?
Action
Automatic Transmission/Transaxle:
Yes
Go to Step 2.
Go to Step 3.
• DTC P0974: Solenoid
valve-A circuit is
open circuit.
• DTC P0977: Solenoid
valve-B circuit is
open circuit.
• If circuit is OK, go to
step 4.
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.
5A-66
No
Go to "A/T System
Check".
DTC P0974: Shift
solenoid valve-A circuit
is shorted to power
supply circuit.
DTC P0977: Shift
solenoid valve-B circuit
is shorted to power
supply circuit.
Go to Step 4.
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".