U1407 Code - Implausible Engine Torque Request Signal Received
Quick Answer
The Diagnostic Trouble Code (DTC) sets when the Transmission Control Module (TCM) receives a Signal Not Available (SNA) message from the Powertrain Control Module (PCM) or an incorrect Controller Area Network (CAN) message from the PCM. Common causes include Check for Powertrain Control Module (PCM) codes, Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted. 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
- U1407 indicates Implausible Engine Torque Request Signal Received.
- Common causes
- Common causes include Check for Powertrain Control Module (PCM) codes, Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted.
- 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.
Code U1407 Description
What are the Possible Causes of the DTC U1407?
- Check for Powertrain Control Module (PCM) codes
- Faulty Transmission Control Module (TCM)
- Transmission Control Module (TCM) harness is open or shorted
- Transmission Control Module (TCM) circuit poor electrical connection
How to Fix the DTC U1407?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U1407 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the U1407 code?
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Need Help with the Code?
Get the U1407 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- U1407 Chrysler — Implausible Engine Torque Request Signal Received
- U1407 Dodge — Implausible Engine Torque Request Signal Received
- U1407 Jeep — Implausible Engine Torque Request Signal Received
- U1407 RAM — Implausible Engine Torque Request Signal Received
Frequently Asked Questions about U1407 Code
1. What are the common symptoms of OBDII code U1407?
- Common symptoms of U1407 may include engine performance issues, rough idling, decreased fuel efficiency, and the illumination of the check engine light.
2. What are the possible causes of an U1407 code?
- The U1407 code is typically triggered by issues such as a faulty engine control module (ECM), damaged wiring or connectors in the engine torque request circuit, or a malfunctioning torque sensor.
3. How can I diagnose the U1407 code?
- Diagnosing the U1407 code involves using an OBDII scanner to retrieve the code, inspecting the torque sensor and related wiring for damage, and testing the engine control module for proper functionality.
4. Can I continue driving with an U1407 code present?
- It is not recommended to continue driving with the U1407 code active, as it can lead to potential engine performance issues and further damage if left unaddressed.
5. How can I repair the U1407 code?
- Repairing the U1407 code involves addressing the root cause of the issue, which may include replacing a faulty engine control module, repairing damaged wiring or connectors, or recalibrating the torque sensor.
6. Are there any DIY tips for fixing the U1407 code?
- While some basic troubleshooting steps can be taken, diagnosing and repairing the U1407 code often requires specialized tools and expertise, so it is advisable to consult a professional mechanic for proper diagnosis and repair.
7. How much does it typically cost to fix the U1407 code?
- The cost of fixing the U1407 code can vary depending on the underlying cause of the issue, the extent of the repairs needed, and the labor rates in your area. It is recommended to obtain quotes from different mechanics for an accurate estimate.
8. Can a U1407 code be a false alarm?
- While rare, false alarms for the U1407 code can occur due to temporary electrical glitches or sensor malfunctions. It is advisable to clear the code and see if it reappears before proceeding with any repairs.
9. Can a U1407 code cause permanent damage to the engine?
- If left unresolved, the issues indicated by the U1407 code can potentially lead to further engine damage or performance issues. It is important to address the code promptly to prevent any long-term consequences.
10. Is it possible to prevent the U1407 code from reoccurring?
- Regular maintenance, such as checking and replacing worn-out components, ensuring proper electrical connections, and addressing any engine performance issues promptly, can help prevent the U1407 code from reoccurring.
Discuss the causes and fixes for U1407 OBDII Code
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