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U0121 2007 Ford Fusion Code - Lost Communication With The Anti-lock Brake System Control Module

- Code Popularity: 3,309 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U0121 2007 Ford Fusion?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Damaged CAN communication bus circuit
  • Faulty Anti-lock Brake System (ABS) Control Module
  • Anti-lock Brake System Control Module harness is open or shorted
  • Anti-lock Brake System Control Module circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC U0121 2007 Ford Fusion?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for U0121 2007 Ford Fusion Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0121 2007 Ford Fusion code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code U0121 2007 Ford Fusion Description

The Powertrain Control Module (PCM) continuously monitors the Controller Area Network (CAN) for messages from the ABS. The Diagnostic Trouble Code (DTC) U0121 sets when the PCM fails to receive the Anti-lock Brake System (ABS) message within the defined amount of time.

Pictures shown may vary from actual

OBDII Code U0121 2007 Ford Fusion - Lost Communication With The Anti-lock Brake System Control Module - AutoCodes.com
U0121 2007 Ford Fusion Code - Lost Communication With The Anti-lock Brake System Control Module

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Code U0121 2007 Ford Fusion comments

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