AutoCodes – Dodge – U1400 Dodge

U1400 Dodge Code - Implausible TPS Signal Received

Quick Answer

The purpose of the diagnostic is to monitor the Controller Area Network (CAN) BUS, the transmitted messages on the CAN BUS and the validity of the CAN signals. Common causes include Check for Powertrain Control Module (PCM) codes, Faulty Transmission Control Module (TCM), Transmission Control Module 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: U1400 Dodge indicates Implausible TPS Signal Received.
Common causes: Common causes include Check for Powertrain Control Module (PCM) codes, Faulty Transmission Control Module (TCM), Transmission Control Module 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.

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Code Popularity 6,082

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1400 Dodge Description

The purpose of the diagnostic is to monitor the Controller Area Network (CAN) BUS, the transmitted messages on the CAN BUS and the validity of the CAN signals. Several control units are connected to the CAN BUS which send their messages cyclically in a defined time window. The messages contain multiple signals representing vehicle information. The Diagnostic Trouble Code (DTC) sets when the Transmission Control Module (TCM) detects an incorrect CAN ID from the Powertrain Control Module (PCM).

OBDII Code U1400 Dodge - Implausible TPS Signal Received - AutoCodes.com — U1400 Dodge Code - Implausible TPS Signal Received

What does this mean?

What are the Possible Causes of the DTC U1400 Dodge?

Check for Powertrain Control Module (PCM) codes
Faulty Transmission Control Module (TCM)
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC U1400 Dodge?

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 U1400 Dodge 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 U1400 Dodge code?

Need more information on how to fix the U1400 Dodge code? Get Access to Factory Service Manuals

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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 U1400 Dodge Code

1. What does the OBDII code U1400 for Dodge, "Implausible TPS Signal Received," indicate?

The code U1400 means that the Engine Control Module (ECM) has detected an implausible signal from the Throttle Position Sensor (TPS).

2. What are the common symptoms of an U1400 OBDII code in a Dodge vehicle?

Common symptoms include poor acceleration, rough idling, stalling, decreased fuel efficiency, and the check engine light being illuminated.

3. What are the possible causes of an U1400 code on a Dodge vehicle?

Possible causes include a faulty TPS, damaged wiring or connectors related to the TPS, a defective ECM, or issues with the throttle body.

4. How can I diagnose the U1400 code in my Dodge vehicle?

Diagnosing the U1400 code usually involves checking the TPS wiring and connectors for any damage, testing the TPS for proper function, and ensuring there are no issues with the throttle body.

5. What is the typical repair for an U1400 code in a Dodge vehicle?

The typical repair involves replacing a faulty TPS, repairing any damaged wiring or connectors, or recalibrating the throttle body as necessary.

6. Can I continue to drive my Dodge vehicle with an U1400 code present?

It is not recommended to drive your vehicle with an U1400 code present, as it can lead to poor performance and potential safety hazards. It's best to address the issue promptly.

7. How much does it cost to repair an U1400 code in a Dodge vehicle?

The cost of repairing an U1400 code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. How long does it take to repair an U1400 code in a Dodge vehicle?

The repair time for an U1400 code can vary depending on the complexity of the issue, but it typically takes a few hours to complete the necessary diagnostics and repairs.

9. Can I reset the U1400 code in my Dodge vehicle with a simple OBDII scanner?

Yes, you can use an OBDII scanner to clear the U1400 code, but it's important to address the underlying issue causing the code to prevent it from reoccurring.

10. Are there any preventative maintenance tips to avoid the U1400 code in a Dodge vehicle?

To reduce the risk of encountering the U1400 code, it's recommended to regularly inspect and maintain the TPS, wiring, and connectors, and address any issues promptly to prevent further damage.