Engine-Codes - Generic - U0196

U0196 - Lost Communication With Rear Entertainment Control Module 'A'

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

U0196 Possible Causes

  • Faulty Rear Entertainment Control Module 'A'
  • Rear Entertainment Control Module 'A' harness is open or shorted
  • Rear Entertainment Control Module 'A' circuit poor electrical connection

How is the U0196 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 U0196 code

Labor: 1.0

The cost to diagnose the U0196 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)

U0196 Meaning

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. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Rear Entertainment Control Module 'A' has not been received.

More Information

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Information for specific makes

  • U0196 BUICK Lost Communication With Rear Audio Control Module
  • U0196 CADILLAC Lost Communication With Rear Audio Control Module
  • U0196 CHEVROLET Lost Communication With Rear Audio Control Module
  • U0196 CHRYSLER Lost Communication With Rear Entertainment Control Module 1
  • U0196 DODGE Lost Communication With Rear Entertainment Control Module 1
  • U0196 FIAT Lost Communication With Rear Entertainment Control Module 1
  • U0196 GMC Lost Communication With Rear Audio Control Module
  • U0196 JEEP Lost Communication With Rear Entertainment Control Module 1
  • U0196 RAM Lost Communication With Rear Entertainment Control Module 1

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