INTERIOR ROOM LAMP
LT-139
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
M
A
B
LT
N
O
P
Ignition keyhole illumination turns ON at time when driver door is opened (door switch ON) or removed keyfob
from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).
Step lamp turns ON at time when driver door or passenger door is opened (door switch ON). Lamp turns OFF
when the driver, passenger doors are closed (all door switches OFF).
POWER SUPPLY AND GROUND
Power is supplied at all times (without Intelligent Key system)
• through 15A fuse [No. 22, located in fuse block (J/B)]
• to key switch terminal 2 and
• to BCM terminal 42,
• through 50A fusible link (letter M, located in fuse, fusible link and relay box)
• to BCM terminal 55,
• through 10A fuse [No. 19, located in fuse block (J/B)]
• to combination meter terminal 8.
Power is supplied at all times (with Intelligent Key system)
• through 10A fuse (No.38, located in fuse, fusible link and relay box)
• to key switch and ignition knob switch terminal 1,
• through 15A fuse [No.22, located in fuse block (J/B)]
• to BCM terminal 42 and
• to key switch and ignition knob switch terminal 3,
• through 50A fusible link (letter M, located in fuse, fusible link and relay box)
• to BCM terminal 55,
• through 10A fuse [No. 19, located in fuse block (J/B)]
• to combination meter terminal 8.
When key plate inserted to key switch, power is supplied (without Intelligent Key system)
• through key switch terminal 1
• to BCM terminal 37.
When inserted key plate to key switch, power is supplied (with Intelligent Key system)
• through key switch and ignition knob switch terminal 4
• to BCM terminal 37.
When moved ignition knob switch, power is supplied (with Intelligent Key system)
• through ignition knob switch terminal 2
• to intelligent key unit terminal 27.
With ignition switch in the ON or START position, power is supplied
• through 15A fuse [No. 1, located in fuse block (J/B)]
• to BCM terminal 38,
• through 10A fuse [No. 14, located in fuse block (J/B)]
• to combination meter terminal 7.
Ground is supplied
• to BCM terminals 49 and 52, and
• to combination meter terminal 5, 6 and 15
• through grounds terminals M35, M45 and M85.
When driver side door is opened, ground is supplied
• to BCM terminal 62
• through front door switch (driver side) terminal 1
• through case ground of front door switch (driver side).
When passenger side door is opened, ground is supplied
• to BCM terminal 12
• through front door switch (passenger side) terminal 1
• through case ground of front door switch (passenger side).
When rear door RH is opened, ground is supplied
• to BCM terminal 13, and
• to personal lamp RH terminal 1
• through rear door switch RH terminal 1
• through case ground of rear door switch RH.
When rear door LH is opened, ground is supplied
• to BCM terminal 63, and
• to personal lamp LH terminal 1
• through rear door switch LH terminal 1
• through case ground of rear door switch LH.
When driver side door is unlocked by door lock and unlock switch, BCM receives a ground signal
• through grounds terminals M35, M45 and M85