Engine-Codes - Buick - U179C Buick

U179C Buick Code - Lost Communication with One or More Hybrid/EV Battery Interface Control Modules

- Code Popularity: 367 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 U179C Buick?

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 Hybrid/EV Battery Interface Control Module
  • Hybrid/EV Battery Interface Control Module harness is open or shorted
  • Hybrid/EV Battery Interface Control Module circuit poor electrical connection
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How to Fix the DTC U179C Buick?

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 U179C Buick 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 U179C Buick Code Mean?

The Hybrid/EV Powertrain Control Module 2 communicates with the Hybrid/EV Battery Interface Control Modules via a dedicated bus inside the Hybrid/EV Battery Pack assembly. This dedicated bus does not communicate with the scan tool. The Diagnostic Trouble Code (DTC) will be set when the Hybrid/EV Powertrain Control Module has received too many transmit errors on the dedicated serial data circuits.

U179C Buick Code - Lost Communication with One or More Hybrid/EV Battery Interface Control Modules

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