LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R Spec V >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Engine Controls - Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P0402: Exhaust Gas RECIRCULATION System - Excessive Flow Detected >> Circuit Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

WARNING: This page is about a different car, the 2002 Isuzu Rodeo Sport and 2002 Isuzu Rodeo. However, it is still accessible from the selected car via links, so may be relevant.

PCM closes EGR valve on engine start-up to test for excessive flow (any). If PCM determines that EGR flow occurred on start-up, on 2 consecutive trips DTC P0402 will set.

When DTC sets, PCM illuminates MIL on second trip after fault was detected. PCM will store conditions present when DTC was set as freeze frame data in the FAILURE RECORDS data.

PCM will turn MIL off on third consecutive trip cycle during which diagnostic runs and fault is no longer recognized. A history DTC P0402 will clear after 40 consecutive trip cycles during which diagnostic runs and fault is no longer recognized. DTC can be cleared with scan tool, or by disconnecting battery voltage feed to PCM.

scientia non olet · About LEMON Manuals