DTC Confirmation Procedure

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.

NOTE: If DTC confirmation procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

NOTE: For the best results, perform "DTC WORK SUPPORT" at a temperature of 32 to 86°F (0 to 30°C). Open engine hood before conducting following procedure.

For DTC confirmation procedure, see Fig 1.

Fig 1: Identifying DTC Confirmation Procedure For DTC P1146: HO2S2 (2.5L)

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