Room Lamp Timer Operation
When interior room lamp/map lamp switch is in AUTO position and when all conditions below are met, BCM performs timer control (maximum 30 seconds) for interior room lamp/map lamp ON/OFF.
In addition, when map lamp turns ON or OFF there is gradual brightening or dimming over 1 second. Power is supplied
- Through 10A fuse [No. 2, located in the fuse block (J/B)]
- To key switch and ignition knob switch terminal 3.
When key is removed from key switch and ignition knob switch (key switch OFF), power will not be supplied to BCM terminal 37.
Serial data is supplied
- To BCM terminal 22
- Through main power window and door lock/unlock switch terminal 14.
At the time that front door LH is opened, BCM detects that front door LH is unlocked. It determines that interior room lamp/map lamp timer operation conditions are met and turns the interior room lamp/map lamp ON for 30 seconds.
When key is in key switch and ignition knob switch (key switch ON), power is supplied
- Through key switch and ignition knob switch terminal 4
- To BCM terminal 37.
When key is removed from key switch and ignition knob switch (key switch OFF), power supply to BCM terminal 37 is terminated. BCM detects that key has been removed, determines that interior room lamp and map lamp timer conditions are met, and turns the interior room lamp/map lamp ON for 30 seconds.
When front door LH opens/closes and the key is not inserted in the key switch and ignition knob switch (key switch OFF), BCM terminal 62 changes between 0V (door open) ? 12V (door closed). The BCM determines that conditions for interior room lamp/map lamp operation are met and turns the interior room lamp/map lamp ON for 30 seconds.
Timer control is canceled under the following conditions.
- Front door LH is locked (when locked by keyfob, main power window and door lock/unlock switch, or front door lock assembly LH (key cylinder switch)
- Front door LH is opened (front door switch LH turns ON)
- Ignition switch ON.