Push-Button Ignition Switch Illumination Control

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

Push-button Ignition Switch Illumination Basic Operation

BCM controls the ON/OFF status of push-button ignition switch illumination according to vehicle status.
BCM provides the push-button ignition switch illumination control signal and the ground to turn the push-button ignition switch illumination ON.
BCM cuts the ground supply while each illumination (tail lamp) is ON. BCM switches to the ground control according to the meter illumination control function. Refer to "METER ILLUMINATION CONTROL : SYSTEM DESCRIPTION ".

Heart Beat Operation

BCM repeats brightening and dimming operation of push-button ignition switch illumination when any of the following conditions are satisfied.

Welcome light function operates.
When ignition switch is OFF and any of the following conditions are satisfied.
- Driver side door changes from closed to open
- Driver side door changes from locked to unlocked
- Intelligent Key ID comparison is OK and driver side door changes from open to closed
- ID comparison by Intelligent Key transponder is OK

Illumination ON Operation

When ignition switch is not OFF or tail lamp turns ON, push-button ignition switch illumination turns ON.

Dimming Operation

When tail lamp turns OFF and ignition switch is turned OFF, push-button ignition switch illumination dims to 50% brightness.

Illumination OFF Operation

Push-button ignition switch illumination turns OFF when ignition switch turns OFF and tail lamp turns from ON to OFF, while push-button ignition switch illumination is in ON status.

When push-button ignition switch illumination is at 50% brightness or in heartbeat status, and any of the following conditions are satisfied, push-button ignition switch illumination turns OFF.

15 seconds after start of heartbeat operation.
When welcome light function is not operating and any on the following conditions is satisfied.
- Driver side door is closed
- Driver side door is locked
- Intelligent Key ID comparison is NG
- Comparison of Intelligent Key ID by transponder is NG