What causes a SPN 736 code?

SPN 736 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 736 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 736 active.

How do I fix SPN 736?

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 736

J1939 SPN 736 — Engine Management parameter

What it means

SPN 736 indicates a parameter error or configuration failure within the Engine Management system on the J1939 network. The ECM detects that a required operational parameter is missing, invalid, or out of range.