Self-Diagnostics Using Indicator Lights: Notes

NOTE: Ensure interior dome light and all step lights are operating before performing on-board self-diagnostics using indicator lights. During diagnostic code retrieval, any step light that does not illuminate indicates a fault exists in the LCU circuit.

There are five different diagnostic modes for performing on-board diagnostics of the multiplex control system. During on-board diagnostic modes I, II, III and IV, interior dome light and step lights will flash simultaneously in response to self-diagnostic results or faults detected. See Fig 1 . Mode V self-diagnostic results are displayed using power seat memory 1 and memory 2 button indicator lights. See Fig 2 . Select appropriate diagnostic mode for desired system testing. See ON-BOARD DIAGNOSTIC MODES table.

Fig 1: Indicator Lights For Diagnostic Modes I, II, III & IV

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

Fig 2: Indicator Lights For Mode V Diagnostic

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

ON-BOARD DIAGNOSTIC MODES

Diagnostic Mode	System
Mode I	LAN Communications Check
Mode II	Switch Input/Output Monitoring
Mode III	Power Door Locks Self-Diagnosis
Mode IV	Power Window Operation
Mode V	Automatic Drive Positioner Self-Diagnosis