What causes a SPN 3913 code?

SPN 3913 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 3913 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 3913 active.

How do I fix SPN 3913?

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 3913

J1939 SPN 3913 — Body/Chassis parameter

What it means

This code relates to the Driveline Protection/Body Controller parameter. It specifically indicates that the ECM is receiving invalid or missing data regarding driveline protection or clutch engagement parameters from the chassis/transmission network.