What causes a SPN 3375 code?

SPN 3375 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 3375 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 3375 active.

How do I fix SPN 3375?

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 3375

J1939 SPN 3375 — Body/Chassis parameter

What it means

This code refers to a mismatch or communication error regarding Body/Chassis parameters being broadcast over the J1939 data link. It indicates that the expected configuration data from the body builder interface does not match what the vehicle ECU is programmed to receive.