Engine-Codes - Chevrolet - U182A CHEVROLET

U182A CHEVROLET - Hybrid/EV Powertrain Control Module Lost Communication With Battery Energy Control Module On Powertrain Expansion CAN Bus

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

U182A CHEVROLET Possible Causes

  • Faulty Hybrid/EV Powertrain Control Module
  • Hybrid/EV Powertrain Control Module harness is open or shorted
  • Hybrid/EV Powertrain Control Module circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How is the U182A CHEVROLET code repair?

Start by checking 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's pins.

What is the cost to diagnose the U182A CHEVROLET code

Labor: 1.0

The cost to diagnose the U182A CHEVROLET code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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Possible Symptoms

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


Devices connected to the powertrain high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device.
The Battery Energy Control Module is internal to the Hybrid/EV Powertrain Control Module 2. Communication diagnostics for the serial data, including device power and ground as well as the wakeup circuits for the K16 Battery Energy Control Module is diagnosed from external sources only to the Hybrid/EV Powertrain Control Module 2 connector because any circuit fault condition within the Hybrid/EV Powertrain Control Module 2 will cause a complete replacement.
The Diagnostic Trouble Code (DTC) will set when a supervised periodic message that includes the transmitter device availability has not been received.

More Information

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