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2021 FORD MUSTANG MACH-E
Extended Range Dual Motor AWD•AWD•AUTOMATIC•ev
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor332Torque3886Fluid5DTC581Battery1Maintenance0Recalls6
P1741high severityPowertrain

Torque Converter Clutch Control Error

on 2021 Ford Mustang Mach-E Extended Range Dual Motor AWD · AWD

What this code means

The PCM has detected an error in the torque converter clutch operation. The TCC is not engaging or disengaging as commanded, causing a mismatch between expected and actual TCC behavior.

Symptoms

  • Check Engine Light
  • Poor fuel economy
  • Transmission slipping
  • Rough shifting
  • Engine may stall at stop (TCC stuck engaged)
  • Transmission overheating

Common causes

  • Low or dirty transmission fluid
  • Faulty TCC solenoid
  • TCC solenoid wiring open or shorted
  • Worn torque converter clutch
  • Valve body stuck TCC apply valve

Diagnostic steps

  1. Check transmission fluid level and condition
  2. Test TCC solenoid resistance
  3. Monitor TCC engagement with scan tool
  4. Check TCC solenoid wiring for opens/shorts
  5. Test line pressure

Repair notes

Service transmission fluid. Replace TCC solenoid if faulty. If converter clutch is worn, replace torque converter.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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