AutoCodes – Ford – U210B Ford

U210B Ford Code - Lost Communication Between Fuel Pump Control Module 'A' and Restraints Control Module

Quick Answer

The Fuel Pump Control Module monitors the duty cycle and frequency of the signal it receives from the Restraints Control Module (RCM). Common causes include Event Notification Signal (ENS) harness is open or shorted, Event Notification Signal (ENS) circuit poor electrical connection, Radio frequency interference or electromagnetic interference. 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
U210B Ford indicates Lost Communication Between Fuel Pump Control Module 'A' and Restraints Control Module.
Common causes
Common causes include Event Notification Signal (ENS) harness is open or shorted, Event Notification Signal (ENS) circuit poor electrical connection, Radio frequency interference or electromagnetic interference.
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 31,311
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 15, 2020
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Code U210B Ford Description

The Fuel Pump Control Module monitors the duty cycle and frequency of the signal it receives from the Restraints Control Module (RCM). The fuel pump control module determines if the signal on the Event Notification Signal (ENS) circuit from the RCM is a valid duty cycle and frequency. If the duty cycle or frequency is invalid, the fuel pump control module sends a 40% duty cycle signal on the Fuel Pump Monitor (FPM) circuit to report the concern to the Powertrain Control Module (PCM). The test fails when the fuel pump control module is still reporting that it is receiving an invalid duty cycle or frequency from the RCM after a calibrated amount of time.
OBDII Code U210B Ford - Lost Communication Between Fuel Pump Control Module 'A' and Restraints Control Module - AutoCodes.com
U210B Ford Code - Lost Communication Between Fuel Pump Control Module 'A' and Restraints Control Module

What are the Possible Causes of the DTC U210B Ford?

  • Event Notification Signal (ENS) harness is open or shorted
  • Event Notification Signal (ENS) circuit poor electrical connection
  • Radio frequency interference or electromagnetic interference
  • Faulty Restraints Control Module (RCM)
  • Faulty Fuel Pump Control Module

How to Fix the DTC U210B 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U210B 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 U210B Ford code?

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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 U210B Ford Code

1. What are the common symptoms of OBDII code U210B for a Ford vehicle?

The common symptoms include engine stalling, difficulty starting the vehicle, and the fuel pump not priming when the ignition is turned on.

2. What can cause the OBDII code U210B in a Ford related to the lost communication between the fuel pump control module and restraints control module?

The code U210B can be triggered by a faulty fuel pump control module, a malfunctioning restraints control module, damaged wiring or connectors, or a communication network issue.

3. How can I diagnose the root cause of the U210B code in my Ford vehicle?

To diagnose the issue, you can perform a thorough inspection of the wiring and connectors between the fuel pump control module and the restraints control module, check for any visible damage, and use a diagnostic scanner to read the trouble codes and pinpoint the exact cause.

4. What are some repair tips for resolving the U210B code in a Ford related to lost communication between modules?

Ensure all wiring and connectors are in good condition, repair any damaged components, reset the codes with a diagnostic scanner, and perform a module reset or reprogramming if necessary.

5. Can I continue driving my Ford vehicle with the U210B code present?

It is not recommended to continue driving your vehicle with the U210B code active, as it can lead to potential safety issues and further damage to the vehicle's systems.

6. How much does it typically cost to repair the U210B code in a Ford vehicle?

The cost of repairing the U210B code can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Will resetting the trouble codes make the U210B code disappear permanently?

Resetting the trouble codes may temporarily clear the U210B code, but if the underlying issue is not addressed and fixed, the code is likely to reappear once the system detects the problem again.

8. Is it possible to prevent the U210B code from occurring in the future?

Regular maintenance, timely repairs of any related issues, and keeping the vehicle's communication network in good condition can help prevent the U210B code from occurring in the future.

9. Can a DIY enthusiast fix the U210B code issue in a Ford vehicle?

Depending on the skill level and experience of the DIY enthusiast, some tasks related to diagnosing and repairing the U210B code may be manageable, but complex issues may require professional expertise.

10. How long does it usually take to repair the U210B code in a Ford vehicle?

The repair time for the U210B code can vary based on the exact cause of the problem, the availability of parts, and the technician's expertise, but it may take a few hours to a full day to complete the repair.

Discuss the causes and fixes for U210B Ford OBDII Code

  • 2010 F150 supercab Limp mode/ Blue wrench light. Already replaced the Fuel PCM then the RCM. Did the Fuse 27 replacement/ bypass. For weeks it would give the blue wrench light, then after driving 1 mile, shutting off and restarting it would go off and be fine until the next day, regardless of stopping, mileage or restarting. Now it is on all the time. Unable to locate any broken wires or loose connections. Is there a single wire running from the PCM to the RCM and if so what color is it. Considering replacing just that one wire.

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