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P0741 Toyota Code - Torque Converter Clutch Solenoid Performance

- Code Popularity: 213,472 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0741 Toyota?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty Torque Converter Clutch Solenoid Valve (Shift Solenoid Valve SL)
  • Torque Converter Clutch Solenoid Valve harness or connectors
  • Torque Converter Clutch Solenoid Valve circuit is open or shorted
  • Transmission valve body assembly is blocked
  • Torque converter assembly
  • Transmission internal mechanical problem
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How to Fix the DTC P0741 Toyota?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes





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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0741 Toyota code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0741 Toyota Description

Torque converter lock-up is controlled by the Engine Control Module (ECM) based on speed sensor NT, speed sensor NC, engine speed, engine load, engine temperature, vehicle speed, ATF temperature, and gear selection. The ECM determines the lock-up status of the torque converter by comparing the engine speed (NE) to the input turbine speed (NT). The ECM calculates the actual transmission gear by comparing the input turbine speed (NT) to the counter gear speed (NC). When conditions are appropriate, the ECM requests lock-up by applying a control voltage to shift solenoid valve SL. When the shift solenoid valve SL is turned on, it applies pressure to the lock-up relay valve and locks the torque converter.
If the ECM detects no lock-up after lock-up has been requested or if it detects lock-up when it is not requested, the ECM interprets this as a fault in shift solenoid valve SL or lock-up system performance. The ECM will turn on the MIL and store the Diagnostic Trouble Code (DTC).
OBDII Code P0741 Toyota - Torque Converter Clutch Solenoid Performance - AutoCodes.com
P0741 Toyota Code - Torque Converter Clutch Solenoid Performance

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Code P0741 Toyota comments

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