Overall Function Check

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Never use compressed air, doing so may damage the EVAP system. Do not start engine. Do not exceeded 0.6 psi (4.12 kPa).

NOTE: Use this procedure to check the overall function of the EVAP very small leak function. During this check, a 1st trip DTC might not be confirmed.

NOTE: For diagnostic procedure, see DIAGNOSTIC PROCEDURE .

For overall function check, see Fig 1.

Fig 1: Identifying Overall Function Check For DTC P1456: EVAP Control System

Courtesy of NISSAN MOTOR CO., U.S.A.