Dtc P0974/P0977 Shift Solenoid-A - Suzuki WagonR+ RB310 Service Manual

7B1-74 AUTOMATIC TRANSAXLE (M13 ENGINE MODEL)
DTC P0974/P0977 Shift Solenoid-A (No.1) Control Circuit High/Shift Solenoid-
B (No.2) Control Circuit High
Wiring Diagram
1. TCM
2. Shift solenoid valve-A (No.1)
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
DTC Confirmation Procedure
WARNING:
• When performing a road test, select a place where there is no traffic or possibility of a traffic acci-
dent 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, if available.
2) Clear DTC in TCM memory.
3) Start engine shift select lever to "D" range.
4) Start vehicle and increase vehicle speed until gear position reaches 3rd or 4th gear.
5) Decrease vehicle speed and stop vehicle.
6) Check DTC.
DTC Troubleshooting
Step
1 Was "Automatic Transaxle Diagnostic Flow Table"
performed?
12V
E13-16
12V
BLK/YEL
E13-15
[A]
E13
16 15
3. Shift solenoid valve-B (No.2)
4. A/T
Action
1
2
BRN
3
E12
[A]: Terminal arrangement of TCM connector (Viewed from harness side)
TROUBLE AREA
• Shift solenoid valve circuit open or shorted to
power circuit.
• Malfunction of shift solenoid valve
• TCM
Yes
Go to Step 2.
4
No
Go to "Automatic Tran-
saxle Diagnostic Flow
Table" in this section.