Suzuki GRAND VITARA Owner's Manual page 928

5A-60 Automatic Transmission/Transaxle:
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
Voltage of shift solenoid valve TCM terminal is low although TCM
is commanding shift solenoid to turn ON.
(1 driving cycle detection logic)
DTC Confirmation Procedure
DTC P0973:
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.
4) Shift select lever to "N" and "D" range for each 20 seconds.
5) Check DTC, pending DTC and freeze-frame data.
DTC P0976:
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.
4) Shift select lever to "N" and "D" range for each 10 seconds.
5) Start vehicle and increase vehicle speed to 20 km/h (12.5 mile/h) with throttle position 10% or less.
6) Stop vehicle.
7) Check DTC, pending DTC and freeze-frame data.
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?
Action
?
Trouble Area
• Shift solenoid valve circuit shorted to ground.
• Malfunction of shift solenoid valve.
• TCM
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.
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: ".