Dtc P0743 (No.25 / No.26) Torque Converter Clutch Circuit Electrical - Suzuki Liana RH418 Supplementary Service Manual

DTC P0743 (No.25 / No.26) Torque Converter Clutch Circuit Electrical

Wiring Diagram
2
1. TCC solenoid valve
DTC Detecting Condition and Trouble Area
DTC detecting condition
• Voltage of TCC solenoid valve TCM terminal is low
although TCM is commanding TCC solenoid to turn ON.
• Voltage of TCC solenoid valve TCM terminal is high
although TCM is commanding TCC 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) Clear DTCs in TCM memory.
2) Start engine and warm it up to normal operating temperature.
3) Turn O/D off switch OFF. (Confirm "O/D OFF" lamp does not light.)
4) Drive vehicle with 3rd or 4th gear in "D" range and lock-up ON for 10 seconds or longer referring to "Automatic
Gear Shift Diagram". (Reference: less than 20% throttle opening and at vehicle speed of 80 km/h (50 mile/h) or
more)
5) Decrease vehicle speed gradually and stop vehicle.
6) Check DTC.
12V
BLU/WHT
G08-12
G08
12
2. TCM 3. Terminal arrangement of TCM connector (viewed from harness side)
Automatic Transmission/Transaxle:
1
G07
Trouble area
• TCC solenoid valve circuit shorted to ground.
• TCC solenoid valve circuit open or shorted to
power circuit.
• TCM
5A-45
S3RH0B5104027
3
I3RH0B510005-01