DTC P1402: EGR Function: Notes
NOTE:
Using the following diagnostic procedure assumes the presence of a current (hard) DTC or the ability to duplicate the setting of the DTC using DTC confirmation test(s), intermittent recreation procedures or a test drive under conditions stored in freeze frame data. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM in SELF-DIAGNOSTICS - INTRODUCTION article. If DTC cannot be duplicated, proceed to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom.
NOTE:
If using a generic scan tool, perform DTC Confirmation Test more than once to set DTC. Only Nissan's CONSULT scan tool or retrieving DTCs with MIL will confirm a 1st trip DTC for this code.