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P1740 Code - Torque Converter Clutch or Overdrive Solenoid Performance Condition

- Code Popularity: 77,053 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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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?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1740 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P1740 Description

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.

OBDII Code P1740 - Torque Converter Clutch or Overdrive Solenoid Performance Condition - AutoCodes.com
P1740 Code - Torque Converter Clutch or Overdrive Solenoid Performance Condition

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Code P1740 comments

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