Diagnostic 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: For accelerator pedal position component inspection, see COMPONENT INSPECTION under DTC P2138 APP SENSOR, for mass air flow sensor component inspection, see COMPONENT INSPECTION under DTC P0101: MASS AIR FLOW SENSOR, for EVAP control system pressure sensor component inspection, see COMPONENT INSPECTION (2.5L) or COMPONENT INSPECTION (3.5L) under DTC P0453: EVAP CONTROL SYSTEM PRESSURE SENSOR, for refrigerant pressure sensor component inspection, see REFRIGERANT PRESSURE SENSOR in SYSTEM & COMPONENT TESTING article, for throttle position sensor component inspection, see COMPONENT INSPECTION under DTC P2135: THROTTLE POSITION SENSOR, for throttle valve closed position learning, see THROTTLE VALVE CLOSED POSITION LEARNING , for Idle air volume learning, see IDLE AIR VOLUME LEARNING and for intermittents, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.

For diagnostic procedure, see Fig 1-Fig 2 .

Fig 1: Identifying Diagnostic Procedure For DTC P1229: Sensor Power Supply (Steps 1-3 Of 7)

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

Fig 2: Identifying Diagnostic Procedure For DTC P1229: Sensor Power Supply (Steps 4-7 Of 7)

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