What causes a SPN 1413 code?

SPN 1413 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 1413 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 1413 active.

How do I fix SPN 1413?

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 1413

Ignition Key Switch Line Low Voltage

What it means

The Engine Control Module (ECM) has detected that the battery voltage on the ignition keyswitch input is below the specific threshold for normal operation.