On Board Diagnosis Logic

This self-diagnosis has the one trip detection logic.

The MIL will not light up for this diagnosis.

NOTE:

If DTC P 1572 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to "DTC P0605 ECM ".
This self-diagnosis has the one trip detection logic. When malfunction A is detected, DTC is not stored in ECM memory. in that case, 1st trip DTC and 1st trip freeze frame data are displayed. 1st trip DTC is erased when ignition switch OFF. even when malfunction A is detected in two consecutive trips, DTC is not stored in ECM memory.

Fig 1: On Board Diagnosis Logic Chart
Courtesy of NISSAN MOTOR CO., U.S.A.