AutoCodes – Dodge – U1460 Dodge

U1460 Dodge Code - Engine Idle Speed Message Rationality

Quick Answer

This diagnostic checks the availability and rationality of the Engine Idle Speed signal which is sent by the Engine Control Module (ECM) via a Controller Area Network (CAN) message. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) circuit poor electrical connection. 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: U1460 Dodge indicates Engine Idle Speed Message Rationality.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) circuit poor electrical connection.
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 424

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 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1460 Dodge Description

This diagnostic checks the availability and rationality of the Engine Idle Speed signal which is sent by the Engine Control Module (ECM) via a Controller Area Network (CAN) message. The diagnostic determines the availability by checking the received value is not equal to the Signal Not Available (SNA) default value. Then the diagnostic checks the rationality by confirming the signal value is within the range defined by a lower and upper threshold. When the CAN signal value is below a calibratable lower threshold or it exceeds a calibratable upper threshold or the signal is not available, the Powertrain Control Module (PCM) sends a Signal Not Available (SNA) default value to the PCM. When the PCM reads one of these conditions then the Diagnostic Trouble Code (DTC) U1460 is set.

OBDII Code U1460 Dodge - Engine Idle Speed Message Rationality - AutoCodes.com — U1460 Dodge Code - Engine Idle Speed Message Rationality

What does this mean?

What are the Possible Causes of the DTC U1460 Dodge?

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 U1460 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 U1460 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.

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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 U1460 Dodge Code

1. What are the common symptoms of OBDII code U1460 in a Dodge related to engine idle speed message rationality?

- Common symptoms include rough idling, stalling at idle, fluctuating idle speed, and potentially poor engine performance.

2. What can cause the OBDII code U1460 related to engine idle speed message rationality in a Dodge?

- The code U1460 can be triggered by issues such as a faulty idle air control valve, vacuum leaks, throttle body issues, or a malfunctioning engine control module (ECM).

3. How can I diagnose the OBDII code U1460 in my Dodge if I suspect an issue with engine idle speed message rationality?

- Diagnose the code by checking the idle air control valve, inspecting for vacuum leaks, ensuring proper throttle body operation, and testing the ECM for any faults.

4. Can a dirty throttle body cause the OBDII code U1460 in a Dodge related to engine idle speed message rationality?

- Yes, a dirty throttle body can disrupt idle speed control and trigger code U1460. Regular cleaning and maintenance of the throttle body can help prevent this issue.

5. What are some repair tips for addressing the OBDII code U1460 related to engine idle speed message rationality in a Dodge?

- Repair tips include cleaning or replacing the idle air control valve, fixing any vacuum leaks, cleaning the throttle body, and ensuring the ECM is functioning properly.

6. Is it safe to continue driving my Dodge with the OBDII code U1460 related to engine idle speed message rationality?

- It is not recommended to drive with this code present, as it can lead to further engine issues or potential stalling, which can compromise safety.

7. Can resetting the ECM clear the OBDII code U1460 in a Dodge related to engine idle speed message rationality?

- Resetting the ECM may temporarily clear the code, but it is important to diagnose and address the underlying issue to prevent the code from reoccurring.

8. How can a professional mechanic help with diagnosing and repairing the OBDII code U1460 in a Dodge related to engine idle speed message rationality?

- A professional mechanic can use specialized diagnostic tools to pinpoint the exact cause of the code and perform necessary repairs or replacements with expertise.

9. Are there any recalls or technical service bulletins (TSBs) related to the OBDII code U1460 in Dodge vehicles?

- It is recommended to check with a Dodge dealership or the manufacturer's website for any recalls or TSBs related to code U1460 and engine idle speed message rationality issues.

10. Can extreme weather conditions or driving habits contribute to triggering the OBDII code U1460 in a Dodge related to engine idle speed message rationality?

- Yes, extreme weather conditions or aggressive driving habits can sometimes exacerbate underlying issues leading to code U1460, so practicing proper vehicle maintenance and care is important.