What causes a SPN 3182 code?

SPN 3182 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 3182 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 3182 active.

How do I fix SPN 3182?

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 3182

J1939 SPN 3182 — Body/Chassis parameter

What it means

The SPN 3182 specifically relates to an Auxiliary Input/Output or Body Controller parameter. This is often triggered when the engine controller detects an invalid signal or a circuit failure from body-mounted equipment (e.g., dump beds, cranes, liftgates) or the Body Builder interface.