Engine-Codes.com
Engine-Codes – Acura – P0742 Acura

P0742 Acura Code - Torque Converter Clutch Stuck On

Quick Answer

When the diagnostic trouble code P0742 appears on an Acura vehicle, it indicates that the torque converter clutch is stuck on. Common causes include Malfunctioning torque converter clutch solenoid, Faulty torque converter clutch, Low transmission fluid levels. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0742 Acura indicates Torque Converter Clutch Stuck On.
Common causes
Common causes include Malfunctioning torque converter clutch solenoid, Faulty torque converter clutch, Low transmission fluid levels.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 18, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0742 Acura Description

When the diagnostic trouble code P0742 appears on an Acura vehicle, it indicates that the torque converter clutch is stuck on. The torque converter is a critical component in an automatic transmission system that transfers power from the engine to the transmission. The torque converter clutch is responsible for locking the torque converter when the vehicle reaches a certain speed, improving fuel efficiency and preventing slippage.

OBDII Code P0742 Acura - Torque Converter Clutch Stuck On
P0742 Acura Code - Torque Converter Clutch Stuck On

Common Causes of P0742 Acura

  1. Malfunctioning torque converter clutch solenoid
  2. Faulty torque converter clutch
  3. Low transmission fluid levels
  4. Transmission control module issues
  5. Electrical problems within the transmission system

Symptoms of P0742 Acura

  1. Decreased fuel efficiency
  2. Rough or harsh shifting
  3. Overheating of transmission fluid
  4. Illumination of the Check Engine Light
  5. Slipping or shuddering during acceleration

How to Fix P0742 Acura

  1. Diagnose the issue using a scan tool to confirm the P0742 code and identify the specific cause.
  2. Inspect the torque converter clutch solenoid and torque converter clutch for any signs of damage or wear.
  3. Check transmission fluid levels and quality, topping up or replacing as necessary.
  4. Test the transmission control module for proper functioning and address any electrical issues.
  5. Clear the trouble code, reset the vehicle's computer, and test drive to ensure the problem has been resolved.

Cost to Fix P0742 Acura

The typical repair costs for addressing a P0742 code on an Acura vehicle can range from $300 to $800, depending on the specific cause of the issue and the extent of the repairs needed. This estimate includes parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. Rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive pricing. For a more accurate estimate, it's recommended to obtain quotes from local auto repair shops.

What does this mean?

Tech Notes for P0742 Acura

When the a transmission solenoid is stuck on, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

When is the Code Detected?

The Transmission Control Module (TCM) has detected slippage on the Torque Converter Clutch (TCC) during a period when the converter is commanded off

Need more information about the P0742 Acura code?

Need more information on how to fix the P0742 Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0742 Acura code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0742 Acura Code

No Frequently Asked Questions about P0742 Acura Code found.

Discuss the causes and fixes for P0742 Acura OBDII Code

Submit a New Comment

Code P0742 Acura comments

No comments found for this page.