Engine-Codes - Generic - P1740

P1740 Code - Torque Converter Clutch or Overdrive Solenoid Performance Condition

- Code Popularity: 76,981 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 P1740?

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 (TCC) and Overdrive (OD) Solenoid
  • Torque Converter Clutch (TCC) and Overdrive (OD) Solenoid harness is open or shorted
  • Torque Converter Clutch (TCC) and Overdrive (OD) Solenoid circuit poor electrical connection
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How to Fix the DTC P1740?

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 P1740 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 P1740 Code Mean?

Torque Converter Clutch (TCC) and Overdrive (OD) clutch are tested when the Powertrain Control Module (PCM) requests TCC engagement in 3rd gear and Overdrive. The P1740 code will set if expected RPM drop is not achieved while attempting to engine TCC and/or Overdrive. The P1740 code indicates malfunctioning torque converter or overdrive clutch.

P1740 Code - Torque Converter Clutch or Overdrive Solenoid Performance Condition

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Code P1740 Information for Specific Makes

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