Engine-Codes - Toyota - P0741 Toyota

P0741 Toyota Code - Torque Converter Clutch Solenoid Performance

- Code Popularity: 213,468 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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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

Code Tech Notes





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How to Fix the DTC P0741 Toyota?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0741 Toyota code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P0741 Toyota Code Mean?

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).
P0741 Toyota Code - Torque Converter Clutch Solenoid Performance

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