What causes a SPN 2057 code?

SPN 2057 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a SPN 2057 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 2057 active.

How do I fix SPN 2057?

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

J1939 SPN

SPN 2057

SPN 2057 Battery Voltage High or Low Fault

What it means

This fault indicates that the Electronic Control Unit (ECU) has detected an supply voltage or power source level that is outside the normal operating parameters.