Engine-Codes - Generic - U0556

U0556 Code - Invalid Data Received From Front Display Interface Module

- Code Popularity: 2,064 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U0556?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Front Display Interface Module
  • Front Display Interface Module harness is open or shorted
  • Front Display Interface Module circuit poor electrical connection
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How to Fix the DTC U0556?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the U0556 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the U0556 Code Mean?

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Front Display Interface Module causing its integrity to be questioned.

U0556 Code - Invalid Data Received From Front Display Interface Module

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Code U0556 Information for Specific Makes

  • U0556 Ford Invalid Data Received From Front Display Interface Module
  • U0556 Lincoln Invalid Data Received From Front Display Interface Module
  • U0556 Mercury Invalid Data Received From Front Display Interface Module

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