Starting & Changing Modes Of Self-Diagnosis
On all models except Pathfinder and Van, turn ignition switch to "ON" position. Turn diagnostic mode selector of ECU fully clockwise and wait for inspection lights to begin flashing. See Figure . On Pathfinder, Pickup and Van models, turn ignition switch to the "ON" position. Turn diagnostic mode selector to the "ON" position and wait for inspection lights to begin flashing. See Figure .
On all models, count the number of flashes. Right after the number of flashes which correspond to the diagnosis mode you wish to enter appears, immediately turn the mode selector (mode on-off switch to "OFF" position for Pathfinder, Pickup and Van models) fully counterclockwise.