Dtc P0974 / P0977 Shift Solenoid "A" Control Circuit High / Shift Solenoid "B" Control Circuit High - Suzuki Grand Vitara Manual
Transmission / transaxle
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- Owner's manual (1736 pages) ,
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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.
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?
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Action
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Automatic Transmission/Transaxle:
Trouble Area
• Shift solenoid valve circuit open or shorted to
power circuit.
• Malfunction of shift solenoid valve.
• TCM
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.
5A-61
S5JB0A5104042
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.
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