U2023 — FlexRay communication error

Network (CAN bus, communication)

FlexRay communication error

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Can I drive with U2023?

You can usually drive home and book an inspection within a few days.

Frequently asked questions

What does fault code U2023 mean?

U2023 means FlexRay communication error.

Can I keep driving with U2023?

You can usually drive home and book an inspection within a few days.

Related fault codes

• U2020 — LIN bus 2 circuit short to battery
• U2021 — LIN bus 2 circuit short to ground
• U2022 — LIN bus 2 circuit open
• U2024 — FlexRay performance
• U2025 — FlexRay circuit short to battery
• U2026 — FlexRay circuit short to ground
• U2027 — FlexRay circuit open
• U2028 — FlexRay — startup error
• U2029 — FlexRay — synchronization loss

Get a full diagnosis for U2023 with AutoUncover.