On Board Diagnosis Logic

WARNING: This page is about a different car, the 2005 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If DTC P0451 is displayed with DTC P1229, first perform the trouble diagnosis for DTC P1229. Refer to DTC P1229 SENSOR POWER SUPPLY .

Fig 1: DTC Condition Detecting Chart

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