Daytime Light Operation

WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

Once the parking brake is turned OFF after ignition switch ON, if the lighting switch is turned OFF while engine running, the BCM sends daytime light request signal (ON) through CAN communication.

When receiving daytime light request signal (ON), combination meter turns ON daytime light relay. And power is supplied

through daytime light relay terminal 1
to combination meter terminal 10,
through daytime light relay terminal 3
to parking lamp RH and LH terminals 1.
Ground is supplied
to combination meter terminals 5, 6 and 15
through grounds M35, M45 and M85,
to parking lamp RH and LH terminals 3
through grounds E21, E50 and E51.

With power and grounds supplied, the daytime light lamps illuminate.