AutoCodes – Ford – U2472 Ford

U2472 Ford Code - Unexpected Ignition State

Quick Answer

The Instrument Cluster (IC) receives both the RUN/START and keep alive voltage from the Smart Junction Box (SJB). Common causes include Faulty Smart Junction Box (SJB), Smart Junction Box harness is open or shorted, Smart Junction Box 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
U2472 Ford indicates Unexpected Ignition State.
Common causes
Common causes include Faulty Smart Junction Box (SJB), Smart Junction Box harness is open or shorted, Smart Junction Box 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 10,408
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 17, 2020
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Code U2472 Ford Description

The Instrument Cluster (IC) receives both the RUN/START and keep alive voltage from the Smart Junction Box (SJB). The Diagnostic Trouble Code (DTC) sets in the IC when it detects a discrepancy between the hardwired voltage input and the messaged ignition state inputs from the SJB for greater than 5 seconds when the ignition switch is in the RUN position.
OBDII Code U2472 Ford - Unexpected Ignition State - AutoCodes.com
U2472 Ford Code - Unexpected Ignition State

What are the Possible Causes of the DTC U2472 Ford?

  • Faulty Smart Junction Box (SJB)
  • Smart Junction Box harness is open or shorted
  • Smart Junction Box circuit poor electrical connection
  • Faulty Instrument Cluster (IC)

How to Fix the DTC U2472 Ford?

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 U2472 Ford 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 U2472 Ford code?

Need more information on how to fix the U2472 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2472 Ford code diagnosed by a professional: Find a repair shop in your area

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 U2472 Ford Code

1. What are the common symptoms of OBDII code U2472 in a Ford vehicle?

- Common symptoms include difficulty starting the engine, stalling, rough idling, and overall poor engine performance.

2. What can cause the OBDII code U2472 Unexpected Ignition State in a Ford?

- This code is often triggered by issues with the ignition system, such as a faulty ignition switch, ignition coil, or wiring problems.

3. How can I diagnose the OBDII code U2472 in my Ford?

- A proper diagnostic scan tool can be used to retrieve the code and further investigate the specific ignition system component causing the issue.

4. Can driving with the U2472 code present cause further damage to my Ford vehicle?

- Continuing to drive with this code present can potentially lead to more severe engine problems and should be addressed promptly.

5. Is it safe to ignore the U2472 code in my Ford?

- Ignoring this code can result in unreliable vehicle performance and potential safety hazards, so it is recommended to address it as soon as possible.

6. How can I repair the U2472 code in my Ford?

- Repairing this code typically involves diagnosing and fixing the underlying ignition system issue, which may require replacing faulty components or repairing wiring.

7. Can a DIY enthusiast fix the U2472 code in a Ford at home?

- While some individuals with automotive repair experience may be able to address this code at home, it is often best to consult a professional mechanic for accurate diagnosis and repair.

8. Are there any preventative maintenance steps to avoid the U2472 code in a Ford?

- Regular maintenance of the ignition system, such as replacing spark plugs and checking ignition components, can help prevent issues that may trigger this code.

9. How long does it usually take to repair the U2472 code in a Ford?

- The repair time can vary depending on the specific cause of the code and the extent of the issue, but it is generally recommended to address it promptly to avoid further damage.

10. Can extreme weather conditions affect the occurrence of the U2472 code in a Ford?

- Yes, extreme temperatures or moisture can potentially exacerbate existing ignition system issues and lead to the triggering of the U2472 code.

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