Diagnosis procedure
1.Check connector
Is the inspection result normal? Yes >> go to 2.
No >> repair the terminal and connector.
2.Check harness for open circuit

Is the measurement value within the specification? Yes >> go to 3.
No >> repair the tcm branch line.
3.Check power supply and ground circuit
Check the power supply and the ground circuit of the TCM. Refer to TM-234, "Diagnosis Procedure".
Is the inspection result normal? YES (Present error)>>Replace the TCM. Refer to the TM-263, "Removal and Installation".
YES (Past error)>>Error was detected in the TCM branch line.
NO >> Repair the power supply and the ground circuit.
Ipdm-e branch line circuit
A-bag branch line circuitPrecaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front passenger for certain
types of collision. Information necessary to service the system ...
Periodic maintenance
Road wheel
Inspection
ALUMINUM WHEEL
Check tires for wear and improper inflation.
Check wheels for deformation, cracks and other damage. If deformed,
remove wheel and check wheel
runout.
Remove tire from aluminum wheel and mount wheel on a balancer machine.
Set dial indicator as ...
P0740 Torque converter
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
P0740
TORQUE CONVERTER
(Torque Converter Clutch Circuit/
Open)
The TCM torque converter clutch solenoid
valve current monitor readi ...