HomeNetwork/Communication › U01A1

U01A1 - Lost Communication With Hybrid/EV Battery Interface Control Module B

U01A1 is a generic network/communication diagnostic trouble code indicating Lost Communication With Hybrid/EV Battery Interface Control Module B. It relates to the System-Specific system.

DTC Breakdown (SAE J2012)

Facts for code U01A1
SystemNetwork/Communication (U)
TypeGeneric
SubsystemSystem-Specific
Fault IndexA1
StandardSAE J2012 / ISO 15031-6

What does diagnostic code U01A1 mean?

The dtc/">diagnostic trouble code U01A1 represents Lost Communication With Hybrid/EV Battery Interface Control Module B. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.

Detailed diagnostic guides and specific fix procedures for code U01A1 are currently being compiled. Always verify check engine warnings with a qualified mechanic.

🔗 Related Diagnostic Codes

Often diagnosed alongside:

Frequently Asked Questions about U01A1

What does U01A1 mean?

The diagnostic trouble code U01A1 represents Lost Communication With Hybrid/EV Battery Interface Control Module B. This standard generic code points to a monitored fault condition in the vehicle's Network/Communication network.

What is the system for U01A1?

The U01A1 code is located in the vehicle's Network/Communication network.

Back to live lookup tool →

Copied code to clipboard!