Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0740LOCK-UP CLUTCH DOES NOT ENGAGE
P0740TORQUE CONVERTER CLUTCH, NO RPM DROP AT LOCKUP
P0740TCC SOLENOID
Manufacturer communications
71Original wording in English
TOYOTA
Some 2024 model year Tacoma and Tacoma Hybrid vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) present: •P07407F – Torque Converter Clutch Actuator Stuck Off •P074571 – Pressure Control Solenoid “A” Actuator Stuck •P079571 – Pressure Control Solenoid "C" Actuator Stuck •P0…
TOYOTA
Some 2024 model year Tacoma and Tacoma Hybrid vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) present: •P07407F – Torque Converter Clutch Actuator Stuck Off •P074571 – Pressure Control Solenoid “A” Actuator Stuck •P079571 – Pressure Control Solenoid "C" Actuator Stuck •P0…
TOYOTA
Some 2024 model year Tacoma vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) present: •P07407F – Torque Converter Clutch Actuator Stuck Off •P079571 – Pressure Control Solenoid "C" Actuator Stuck •P08BA71 – Pressure Control Solenoid "L" Actuator Stuck •P271371 – Pressure C…
CHRYSLER, DODGE, RAM
Remanufactured Transmission Assembly 1. All Promaster (VF) 3.6L/62TE equipped vehicles: a) If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) must be replaced as they are one-time usage. b) Vehicles built prior to 10/23/2015 requires Service Kit PN …
Check vehicle applicability
743A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Torque Converter Clutch Circuit Malfuction
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.