MG ZS (Gen2) P0741 Torque Converter Clutch Performance Fault

The P0741 Torque Converter Clutch Performance Fault indicates that the Transmission Control Module (TCM) has detected that the torque converter clutch (TCC) is not engaging, disengaging, or locking up as expected. The TCC improves fuel efficiency by mechanically linking the engine and transmission at cruising speeds, reducing torque converter slip. If the TCM detects excessive slip when the clutch is commanded on, or insufficient performance during operation, it stores DTC P0741. This fault applies to the MG ZS Gen2 (ZS11 platform), introduced from 2024 onwards.

Symptoms

  • Check Engine Light illuminated
  • Transmission warning light displayed
  • Reduced fuel economy
  • Engine RPM remains higher than normal at cruising speed
  • Harsh or delayed gear changes
  • Transmission slipping
  • Poor acceleration
  • Transmission enters limp-home mode
  • Additional transmission-related DTCs may be present

Possible Causes

  • Faulty torque converter clutch (TCC)
  • Worn or damaged torque converter
  • Faulty TCC control solenoid
  • Low, contaminated, or degraded transmission fluid
  • Valve body malfunction
  • Internal hydraulic pressure fault
  • Faulty transmission fluid pressure control system
  • Damaged wiring or electrical connectors
  • Faulty Transmission Control Module (TCM)
  • Engine Control Module (ECM) fault (rare)

Diagnosis

Diagnosis begins by confirming the stored fault code and reviewing freeze-frame and transmission live data using a compatible diagnostic scan tool. Torque converter clutch slip speed, commanded lock-up status, transmission fluid temperature, gear selection, and engine speed should be analysed during a road test to determine whether the clutch is operating correctly. Transmission fluid level and condition should be inspected, followed by testing of the torque converter clutch solenoid, valve body operation, hydraulic pressure, and associated electrical circuits. Manufacturer diagnostic procedures may also include checking transmission line pressure, inspecting internal transmission components, and verifying proper communication between the ECM and TCM.

For vehicles operating in New Zealand, following OEM diagnostic procedures helps accurately determine whether the fault originates from the torque converter, hydraulic control system, transmission electronics, or internal transmission components before major repairs are carried out.

Accurately diagnosing this fault often requires manufacturer testing procedures, wiring diagrams, connector pinouts, transmission hydraulic specifications, torque converter clutch testing procedures, valve body diagnostics, transmission pressure specifications, and system calibration information. Access to the factory service manual significantly reduces diagnostic time and helps prevent unnecessary transmission repairs.

Applicable Years

2024, 2025, 2026, Onwards

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