AutoCodes - Chevrolet - U2098 CHEVROLET

U2098 CHEVROLET Code - MOST Communication Enable Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U2098 CHEVROLET code possible causes

  • Faulty Radio
  • Radio harness is open or shorted
  • Radio circuit poor electrical connection

|How do I fix the U2098 CHEVROLET code?

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's pins.

|U2098 CHEVROLET code tech notes

U2098 00 MOST Communication Enable Circuit Malfunction
U2098 02 MOST Communication Enable Circuit Short to Ground

|Cost of diagnosing the U2098 CHEVROLET code

Labor: 1.0

The cost of diagnosing the U2098 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.

|What are U2098 CHEVROLET code possible symptoms?

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

|U2098 CHEVROLET code description

When the ignition is ON, the Radio initializes the Media Oriented Systems Transport (MOST) bus by sending a short 100 ms low voltage pulse on the electronic control line (or MOST control line) connected to all devices contained on the MOST ring. When MOST receive, transmit or control line faults are detected, transmit/receive messages will not receive as expected from the wakeup request. The Radio and the Human Machine Interface Control Module will then perform diagnostics to isolate these MOST faults. If the MOST control line is shorted low to 0 V for an excess amount of time, the Radio and the Audio Amplifier, if equipped, will set a U2098 Diagnostic Trouble Code (DTC) and Human Machine Interface Control Module, if equipped, will set a U0029 02 DTC. At this point, the MOST bus will be unable to communicate until the shorted MOST control line is repaired. The DTC will set when the Radio senses a short to ground on the MOST control circuit.
OBDII Code U2098 Chevrolet - MOST Communication Enable Circuit - AutoCodes.com

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|U2098 CHEVROLET code comments

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Repair Importance Level: 3
 
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