What causes a P1286 code?

P1286 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 P1286 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P1286 active.

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

OBD-II

P1286

AMF CAN sensor defective

What it means

The P1286 code indicates that the Articulated Mounting Function (AMF) sensor is sending invalid data or has lost communication over the CAN bus network.