What causes a P102E code?

P102E 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 P102E code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P102E 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

P102E

AMF PCB temperature out of range at powerup

What it means

The Aftertreatment Management Fractionation (AMF) unit's internal Printed Circuit Board (PCB) temperature sensor detected a reading outside of the calibrated logic parameters during the initial startup sequence.