Engine-Codes - Generic - U1A01

U1A01 Code - Telematics Control Unit Internal Malfunction

- Code Popularity: 3,495 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC U1A01?

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 Telematics Control Unit (TCU)
  • Telematics Control Unit harness is open or shorted
  • Telematics Control Unit circuit poor electrical connection
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How to Fix the DTC U1A01?

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 U1A01 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 U1A01 Code Mean?

The Diagnostic Trouble Code (DTC) will set when an internal Telematics Control Unit (TCU) malfunction is detected.

U1A01 Code - Telematics Control Unit Internal Malfunction

Need more Information on the Code?

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Code U1A01 Information for Specific Makes

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