What causes a SPN 1116 code?

SPN 1116 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 1116 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with SPN 1116 active.

How do I fix SPN 1116?

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 1116

Accelerator Pedal Position Sensor 3 Supply Voltage

What it means

Identifies a voltage error in the supply circuit for the third pedal position sensor channel, often used for redundancy.