Light Warning Chime

The warning chime sounds, when driver's door is opened (door switch ON) with lighting switch ON and the ignition switch is in any position other than ON or START.

NOTE: BCM detected lighting switch in the 1st or 2nd position, refer to "COMBINATION SWITCH READING FUNCTION "

BCM detects headlamps are illuminated, and sends light warning signal to combination meter with CAN communication lines.
When the combination meter receives light warning signal, it sounds warning chime.

Fig 1: Communication Diagram Between BCM And Combination Meter
Courtesy of NISSAN MOTOR CO., U.S.A.