What causes a P102D code?

P102D 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 P102D code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P102D 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

P102D

AMF CAN sensor burn off timeout fault

What it means

The Aftertreatment Air Mass Flow (AMF) sensor, located in the air intake or exhaust depending on the specific engine variant (MX-11/MX-13), performs a 'burn off' cycle to clean the sensing element. This fault triggers when the sensor fails to complete that cycle.