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Engine-Codes – Generic – U1009

U1009 Code - SCP Invalid Or Missing Data For Engine Torque

Quick Answer

The U1009 diagnostic trouble code (DTC) indicates that there is Invalid or Missing Data for Engine Torque on the vehicle's Controller Area Network (CAN) network. Common causes include Faulty Engine Control Module (ECM), Wiring issues or poor connections in the CAN network, Malfunctioning sensors related to engine torque. 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
U1009 indicates SCP Invalid Or Missing Data For Engine Torque.
Common causes
Common causes include Faulty Engine Control Module (ECM), Wiring issues or poor connections in the CAN network, Malfunctioning sensors related to engine torque.
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 Aug 30, 2024
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Code U1009 Description

The U1009 diagnostic trouble code (DTC) indicates that there is Invalid or Missing Data for Engine Torque on the vehicle's Controller Area Network (CAN) network. This means that the Engine Control Module (ECM) is not receiving the necessary data regarding the engine torque, which can lead to various performance issues. The engine torque data is crucial for proper engine operation, fuel management, and overall vehicle performance. If this issue is not addressed, it can potentially lead to poor fuel economy, engine misfires, rough idle, and even engine stalling.

OBDII Code U1009 - SCP Invalid Or Missing Data For Engine Torque
U1009 Code - SCP Invalid Or Missing Data For Engine Torque

Common Causes of U1009

  1. Faulty Engine Control Module (ECM)
  2. Wiring issues or poor connections in the CAN network
  3. Malfunctioning sensors related to engine torque
  4. Software glitches or communication errors within the vehicle's network
  5. Issues with the torque converter or transmission

Symptoms of U1009

  1. Poor acceleration and reduced engine power
  2. Check Engine Light illuminated on the dashboard
  3. Engine misfires or hesitation during acceleration
  4. Rough idle or stalling when at a stop
  5. Reduced fuel efficiency

How to Fix U1009

  1. Perform a thorough inspection of the wiring harness and connectors related to the engine torque sensors.
  2. Check and test the Engine Control Module (ECM) for any faults or reprogramming needs.
  3. Verify the functionality of the sensors responsible for providing engine torque data.
  4. Clear the DTC and perform a test drive to monitor if the issue has been resolved.
  5. If the problem persists, consider seeking professional assistance for further diagnostics and repairs.

Cost to Fix U1009

The repair costs for addressing the U1009 code can vary depending on the specific cause of the issue. On average, you can expect to pay anywhere from $100 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can fluctuate based on various factors, so it's recommended to get a personalized estimate from a local mechanic.

What does this mean?

Tech Notes for U1009

This is typically an electrical wiring connection issue, either at the engine controller or at the sensors being monitored by the manufacturer.
It can occur if:
The wrong EGR sensor is installed on the vehicle. Verify with the manufacturer for the latest.
A bad ignition module is present.

When is the Code Detected?

When the PCM is unable to communicate with any other controller on the bus network at any time while the ignition switch is in the “Run” position.

Need more information about the U1009 code?

Need more information on how to fix the U1009 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1009 code diagnosed by a professional: Find a repair shop in your area

Code U1009 Information for Specific Makes

  • U1009 Chrysler — LIN 2 Bus Steering Control Module Electrical Diagnostics
  • U1009 Dodge — LIN 2 Bus Steering Control Module Electrical Diagnostics
  • U1009 Ford — SCP Invalid Or Missing Data For Engine Torque
  • U1009 Jeep — LIN 2 Bus Steering Control Module Electrical Diagnostics
  • U1009 Lincoln — SCP Invalid Or Missing Data For Engine Torque
  • U1009 Mercury — SCP Invalid Or Missing Data For Engine Torque
  • U1009 RAM — LIN 2 Bus Steering Control Module Electrical Diagnostics
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 U1009 Code

1. What are common symptoms of OBDII code U1009 (SCP Invalid Or Missing Data For Engine Torque)?

- Common symptoms include engine misfires, loss of power, rough idling, and potential stalling.

2. What are possible causes of OBDII code U1009?

- Possible causes include faulty wiring or connectors in the SCP (Standard Corporate Protocol) network, issues with the Engine Control Module (ECM), or a malfunctioning sensor related to engine torque.

3. How can I diagnose the SCP network for U1009 code?

- Use a diagnostic scanner to check for communication errors within the SCP network, inspect wiring and connectors for any damage or corrosion, and ensure all modules are properly connected and functioning.

4. Can a bad sensor cause the U1009 code?

- Yes, a malfunctioning sensor related to engine torque, such as a crankshaft position sensor or throttle position sensor, can trigger the U1009 code.

5. How can I repair OBDII code U1009?

- Repair involves identifying and fixing any issues in the SCP network, repairing or replacing damaged wiring or connectors, and addressing any underlying sensor or ECM problems.

6. Will driving with the U1009 code cause further damage to my vehicle?

- While it is not recommended to drive with unresolved OBDII codes, continuing to drive with the U1009 code may lead to poor engine performance and potential damage if left unaddressed for an extended period.

7. Can a DIY enthusiast fix the U1009 code?

- Depending on your experience and access to tools, DIY enthusiasts may be able to diagnose and repair simple wiring or connector issues related to the U1009 code. However, complex ECM or sensor problems may require professional assistance.

8. Is the U1009 code a serious issue?

- The U1009 code should be addressed promptly to prevent potential engine performance issues and further damage. Ignoring the code may lead to more significant problems over time.

9. How long does it typically take to repair U1009?

- The repair time for the U1009 code can vary depending on the complexity of the issue and the availability of parts. Simple fixes like repairing wiring may take a few hours, while troubleshooting sensor or ECM problems could take longer.

10. Can resetting the OBDII system clear the U1009 code?

- Resetting the OBDII system may temporarily clear the U1009 code, but if the underlying issue is not resolved, the code is likely to reappear. It is crucial to diagnose and fix the root cause of the problem to prevent the code from returning.

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