Engine-Codes - Chevrolet - U15E1 CHEVROLET

U15E1 CHEVROLET - Radio Lost Communication With HVAC Controls/Info Display Module On LIN Bus

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

U15E1 CHEVROLET Possible Causes

  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Controls/Info Display Module
  • HVAC Controls/Info Display Module harness is open or shorted
  • HVAC Controls/Info Display Module circuit poor electrical connection
  • Faulty Radio

How is the U15E1 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 U15E1 CHEVROLET code

Labor: 1.0

The cost to diagnose the U15E1 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)


The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) will set when a supervised periodic message to the Radio from the Heating, Ventilation, and Air Conditioning (HVAC) Controls/Info Display Module has not been received.

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