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U2098 BUICK Code - MOST Communication Enable Circuit

- Code Popularity: 411 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By - Updated Jun 15, 2020
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|U2098 BUICK code possible causes

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

|How do I fix code U2098 BUICK 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.

Does your car have Safety Recalls? → Check here

|U2098 BUICK code tech notes

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

|Cost of diagnosing U2098 BUICK code

Labor: 1.0

The cost of diagnosing the U2098 BUICK code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are U2098 BUICK code possible symptoms?

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

|U2098 BUICK 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 buick - MOST Communication Enable Circuit -
U2098 BUICK Code - MOST Communication Enable Circuit

|Need more information with the U2098 BUICK code?

Need more information on how to fix the U2098 BUICK code? Get Access to Factory Service Manuals

|Need help with a U2098 BUICK code?

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|U2098 BUICK code comments

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