Diagnostic Procedure (2.5L)

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: For component inspection, see COMPONENT INSPECTION and for intermittents, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.

For diagnostic procedure (2.5L), see Fig 1 - Fig 2 .

Fig 1: Identifying Diagnostic Procedure For DTC P0037 Or DTC P0038: HO2S2 Heater, Steps 1-2 Of 5 (2.5L)

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

Fig 2: Identifying Diagnostic Procedure For DTC P0037 Or DTC P0038: HO2S2 Heater, Steps 3-5 Of 5 (2.5L)

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