Dtc P0974 / P0977: Shift Solenoid "A" / Shift Solenoid "B" Control Circuit High - Suzuki Swift Sport 2004 Service & Repair Manual

5A-66 Automatic Transmission/Transaxle:

DTC P0974 / P0977: Shift Solenoid "A" / Shift Solenoid "B" 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
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 a 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 and 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.
12V
C34-16
12V
BLK/YEL
C34-15
[A]
C34
16 15
3. Shift solenoid valve-B (No.2)
4. A/T
1
2
BRN
3
C35
I4RS0A510016-01
[A]: Terminal arrangement of TCM connector (viewed from harness side)
• Shift solenoid valve circuit open or shorted to power
circuit
• Malfunction of shift solenoid valve
• TCM
S7RS0B5104034
4
Trouble area