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TuningBot DTC Database · v4.37.14

P0740 Diagnostic Trouble Code (6 variants)

Generic (OBD-II) interpretation + 1 manufacturer-specific in the TuningBot DTC database.

P · PowertrainTransmissionOBD2
Brand pages:Ford

Generic (OBD-II) interpretation

P0740
Torque Converter Clutch Circuit Malfunction Generic · transmission Data confidence 85%

The control module detected improper operation of the Torque Converter Clutch circuit.

Possible causes

  • Wiring
  • TCC solenoid
  • ECM/PCM/TCM

Manufacturer-specific interpretations

Ford

6 interpretations
P0740:11
short to ground Ford · transmission Data confidence 94%

Ford documents P0740:11 (circuit short to ground) for its 2024-2025 gasoline-engine OBD monitor strategy as short to ground. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years
P0740:12
short to power Ford · transmission Data confidence 94%

Ford documents P0740:12 (circuit short to battery) for its 2024-2025 gasoline-engine OBD monitor strategy as short to power. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years
P0740:13
open circuit Ford · transmission Data confidence 94%

Ford documents P0740:13 (circuit open) for its 2024-2025 gasoline-engine OBD monitor strategy as open circuit. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Inspect relevant wiring and connectors
  • Check power supplies and grounds
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years
P0740:1F
circuit intermittent Ford · transmission Data confidence 94%

Ford documents P0740:1F for its 2024-2025 gasoline-engine OBD monitor strategy as circuit intermittent. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Inspect relevant wiring and connectors
  • Check power supplies and grounds
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years
P0740:7E
functionally stuck on Ford · transmission Data confidence 94%

Ford documents P0740:7E for its 2024-2025 gasoline-engine OBD monitor strategy as functionally stuck on. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years
P0740:7F
functionally stuck off Ford · transmission Data confidence 94%

Ford documents P0740:7F for its 2024-2025 gasoline-engine OBD monitor strategy as functionally stuck off. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years

Related and nearby codes

How to read P0740

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

740

Specific fault index within the subsystem.

Frequently asked questions about P0740

What does P0740 mean?

Diagnostic Trouble Code (6 variants). The control module detected improper operation of the Torque Converter Clutch circuit.

Is P0740 generic or manufacturer-specific?

P0740 exists both as a generic OBD-II code (same meaning on every make) and with 1 manufacturer-specific interpretation(s): Ford. Always read it in the context of your vehicle.

Can TuningBot remove P0740 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for Ford engines See the results →

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