AutoCodes – Generic – U1489

U1489 Code - Implausible Data Received From RF Hub

Quick Answer

The Diagnostic Trouble Code (DTC) will set when the Air Suspension Control Module (ASCM) detects an incorrect Controller Area Network (CAN) message from the Radio Frequency (RF) Hub. Common causes include Faulty Radio Frequency (RF) Hub, Radio Frequency (RF) Hub harness is open or shorted, Radio Frequency (RF) Hub 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
U1489 indicates Implausible Data Received From RF Hub.
Common causes
Common causes include Faulty Radio Frequency (RF) Hub, Radio Frequency (RF) Hub harness is open or shorted, Radio Frequency (RF) Hub 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 5,153
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 31, 2020
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Code U1489 Description

The Diagnostic Trouble Code (DTC) will set when the Air Suspension Control Module (ASCM) detects an incorrect Controller Area Network (CAN) message from the Radio Frequency (RF) Hub.
OBDII Code U1489 - Implausible Data Received From RF Hub - AutoCodes.com
U1489 Code - Implausible Data Received From RF Hub

What are the Possible Causes of the DTC U1489?

  • Faulty Radio Frequency (RF) Hub
  • Radio Frequency (RF) Hub harness is open or shorted
  • Radio Frequency (RF) Hub circuit poor electrical connection
  • Faulty Air Suspension Control Module (ASCM)

How to Fix the DTC U1489?

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 U1489 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 U1489 code?

Need more information on how to fix the U1489 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1489 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 U1489 Code

1. What are the common symptoms of OBDII code U1489 (Implausible Data Received From RF Hub)?

- Common symptoms include issues with the vehicle's remote keyless entry system, intermittent power door lock operation, and sporadic communication errors.

2. What could cause the OBDII code U1489 to be triggered?

- The code U1489 is typically triggered by faults in the RF hub module, wiring issues, or problems with the communication network.

3. How can I diagnose the cause of the U1489 code?

- Diagnosing the U1489 code may require using a professional OBDII scanner to retrieve freeze frame data and perform further troubleshooting on the RF hub module and related components.

4. Can a faulty RF hub module be repaired, or does it need to be replaced?

- In most cases, a faulty RF hub module will need to be replaced to resolve the U1489 code. Repairing the module may not be a viable option due to the complexity of the internal components.

5. Are there any common repair tips for addressing the U1489 code?

- It is recommended to check for any loose or damaged wiring connections related to the RF hub module, perform a thorough inspection of the module itself, and ensure proper programming and communication with other vehicle modules.

6. What impact can the U1489 code have on the vehicle's performance?

- The U1489 code can result in intermittent issues with the vehicle's keyless entry system, power door locks, and overall communication within the vehicle's network, affecting convenience and security features.

7. Is it safe to continue driving with the U1489 code present?

- While the U1489 code may not directly affect the drivability of the vehicle, it is recommended to address the issue promptly to prevent potential malfunctions in the keyless entry system or other related components.

8. Can resetting the OBDII system clear the U1489 code?

- Resetting the OBDII system may temporarily clear the U1489 code, but if the underlying issue with the RF hub module or communication network persists, the code is likely to reappear.

9. How much does it typically cost to repair the U1489 code?

- The cost of repairing the U1489 code can vary depending on the extent of the issue, the need for a replacement RF hub module, and labor costs associated with diagnosis and repair. It is advisable to consult with a professional mechanic for an accurate estimate.

10. Are there any recalls or technical service bulletins related to the U1489 code?

- It is recommended to check with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to the OBDII code U1489 to see if the issue may be covered under warranty or special programs.

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