SB18J002

SOME CUSTOMERS MAY EXPERIENCE AN ILLUMINATED MALFUNCTION INDICATOR LIGHT (MIL) WITH DTC P0402 EXHAUST GAS RECIRCULATION (EGR) FLOW EXCESSIVE SET WITHOUT AN APPARENT CAUSE. NEW CALIBRATIONS FOR THE ENGINE CONTROL MODULE (ECM) HAVE BEEN DEVELOPED TO ADDRESS THIS CONCERN. FOLLOW THE DIAGNOSTIC FOR THIS DTC IF NO FAULT CAN BE FOUND WHEN PERFORMING THE NORMAL DIAGNOSIS, FOLLOW THE SERVICE PROCEDURE IN THIS BULLETIN TO CORRECT THE CONCERN.