U1407 Jeep 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 Jeep 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 Jeep Description
What are the Possible Causes of the DTC U1407 Jeep?
- 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 Jeep?
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 Jeep 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.
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Frequently Asked Questions about U1407 Jeep Code
1. What are the common symptoms of OBDII code U1407 in a Jeep?
- Common symptoms include engine stalling, loss of power, rough idling, and difficulty shifting gears.
2. What causes the OBDII code U1407 to trigger in a Jeep?
- The code is typically triggered by a faulty engine control module (ECM), damaged wiring, or a defective torque request signal.
3. How can I diagnose the U1407 code in my Jeep?
- Diagnosis involves using an OBDII scanner to retrieve the code, checking the wiring harness for damage, and testing the ECM for proper functioning.
4. Is it safe to drive my Jeep with the U1407 code present?
- It is not recommended to drive the vehicle with the U1407 code active, as it can lead to performance issues and potential safety hazards.
5. Can I reset the U1407 code in my Jeep without fixing the underlying issue?
- While you can clear the code temporarily, it is important to address the root cause to prevent further damage to the vehicle.
6. How can I repair the U1407 code in my Jeep?
- Repair options include replacing the faulty ECM, repairing damaged wiring, and ensuring proper connections of the torque request signal.
7. Will the U1407 code cause my Jeep to fail an emissions test?
- Yes, the U1407 code may cause your Jeep to fail an emissions test due to the impact on engine performance and emissions control systems.
8. Can extreme weather conditions trigger the U1407 code in a Jeep?
- Yes, extreme weather conditions such as extreme heat or cold can sometimes affect the performance of the ECM and trigger the U1407 code.
9. How much does it typically cost to repair the U1407 code in a Jeep?
- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $200 to $800 for parts and labor.
10. Is the U1407 code specific to Jeep vehicles only?
- While the U1407 code is commonly associated with Jeep vehicles, it may also appear in other makes and models with similar engine control systems.
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