AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Generic - P0738

P0738 Code - TCM Engine Speed Output Circuit Low

- Code Popularity: 3,792 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P0738?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Engine Output Speed Sensor
  • Engine Output Speed Sensor harness is open or shorted
  • Engine Output Speed Sensor circuit poor electrical connection
  • Faulty Crank Shaft Position Sensor
⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC P0738?

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.

Search for P0738 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0738 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 P0738 Description

The Transmission Control Module (TCM) monitors the engine speed signal through the engine output speed sensor (turbine sensor). The TCM sets the OBDII code when the engine speed output sensor signal is not to factory specifications.

OBDII Code P0738 - TCM Engine Speed Output Circuit Low - AutoCodes.com
P0738 Code - TCM Engine Speed Output Circuit Low

Need More Information on the Code?

Need more information on how to fix the P0738 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0738 code diagnosed by a professional: Find a repair shop in your area

Code P0738 comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0738 code? Have you replaced any parts?
Any information is appreciated. Thanks