What causes a SPN 3376 code?

SPN 3376 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 3376 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 3376 active.

How do I fix SPN 3376?

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 3376

J1939 SPN 3376 — Body/Chassis parameter

What it means

SPN 3376 indicates a generic or manufacturer-specific configuration issue with specific Body/Chassis parameters. It often triggers when a requested body function (like PTO or high idle) is mismatched between the chassis and body controller.