System Description

The combination meter receives an illumination control switch signal from the meter control switch, and a position light request signal and a meter ring illumination request signal from BCM through the unified meter and A/C amp. to control meter illumination.

Daytime Mode

Meter illumination is adjusted to 5 steps by illumination control switch (1) in daytime mode.

Fig 1: Identifying Illumination Control Switch

Courtesy of NISSAN DIESEL MOTOR CO., LTD.

Nighttime Mode

• Combination meter is transferred to nighttime mode with position light request signal from BCM with CAN communication line.
• Meter illumination is adjusted to 22 steps by illumination control switch in nighttime.

Driver Welcome Function

• BCM transmits a meter ring illumination request signal to the unified meter and A/C amp. through the CAN communication when the intelligent key is inside the vehicle and the door on the driver side is recognized as closed.
• The unified meter and A/C amp. receives a meter ring illumination request signal through the CAN communication and transmits the signal to the combination meter with communication line.
• The combination meter turns on meter ring illumination is stages by receiving a meter ring illumination request signal from the unified meter and A/C amp. through the communication line.
  NOTE: Meter ring illumination turns off in stages after a set period of time.