Engine-Codes - Generic - P0738

P0738 Code - TCM Engine Speed Output Circuit Low

- Code Popularity: 2,776 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0738 Code?

  • 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

|How to Fix the P0738 Code?

Start by checking 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's pins.

|What is the cost to diagnose the P0738 code?

Labor: 1.0

The cost to diagnose the P0738 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P0738 code possible symptoms?

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

|What Does the P0738 Code Mean?

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.

TCM Engine Speed Output Circuit Low

|Need more information with the P0738 code?

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