LT-130
INTERIOR ROOM LAMP
Revision: 2006 November2007 350Z
When the driver side door is unlocked by door key cylinder switch, The BCM receives information by commu-
nicating with power window main switch
through grounds M30 and M66
to door key cylinder switch terminal 2
through door key cylinder switch terminal 1
to power window main (door lock and unlock switch) switch terminal 7
through power window main switch (door lock and unlock switch) terminal 12
to BCM terminal 22.
When a signal, or combination of signals is received by BCM, ground is supplied
through BCM terminal 48
to map lamp terminal 2 (Coupe models)
to map lamp terminal 3 (Roadster models).
With power and ground are supplied, map lamp illuminates.
SWITCH OPERATION
When map lamp switch is ON, ground is supplied
to map lamp terminal 1 (Coupe models)
to map lamp terminal 1 (Roadster models)
through grounds M30 and M66.
And power is supplied
through BCM terminal 41
to ignition key hole illumination terminal 1
to map lamp terminal 3 (Coupe models)
to map lamp terminal 2 (Roadster models).
When vanity mirror lamp LH and RH is ON, ground is supplied
to vanity mirror lamp LH and RH terminals 2
through grounds M30 and M66.
And power is supplied
through BCM terminal 41
to vanity mirror lamp terminal 1.
MAP LAMP TIMER OPERATION
When the map lamp switch is in the DOOR position, and when all conditions below are met, BCM performs
timer control (maximum 30 seconds) for 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 at all times
to 10A fuse [No. 21 located in fuse block (J/B)]
through key switch terminal 2.
When all doors are closed (all door switches OFF) and key is removed from key cylinder (key switch OFF),
power will not be supplied to BCM terminal 37.
Ground is supplied
through BCM terminal 22
to power window main switch (door lock and unlock switch) terminal 12.
At this time, BCM detects that driver door is unlocked. It determines that map lamp timer operation conditions
are met, and turns map lamp ON for 30 seconds.
When all doors are closed (all door switches OFF) and key is in key cylinder (key switch ON),
Power is supplied
through key switch terminal 1
to BCM terminal 37.
When the key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated.
BCM detects that key has been removed. It determines that map lamp timer conditions are met, and turns
map lamp ON for 30 seconds.
LT-142
INTERIOR ROOM LAMP
Revision: 2006 November2007 350Z
Preliminary CheckNKS004ZP
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT- 1 3 3 , "
Wiring Diagram — ROOM/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCMBatteryF
18
21
Ignition switch ON or START position 1
Terminals Ignition switch position
(+)
(-) OFF ON
BCM connector Terminal
M90 38
GroundApprox. 0 V Battery voltage
M9142 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIB5199E
BCM connector Terminal
GroundContinuity
M91 52 Yes
PKIB5198E
LT-156
ILLUMINATION
Revision: 2006 November2007 350Z
ILLUMINATIONPFP:27545
System DescriptionNKS004ZY
Control of the illumination lamp operation is dependent upon the position of the lighting switch (combination
switch). When the lighting switch is placed in the 1ST or 2ND position, the BCM (body control module)
receives input signal requesting illumination lamps to illuminate. This input signal is communicated to the
IPDM E/R (intelligent power distribution module engine room) through the CAN communication lines. The
CPU (central processing unit) located in the IPDM E/R controls tail lamp relay coil. This relay, when energized,
directs power to illumination lamps, which then illuminate.
OUT LINE
Power is supplied at all times
through 10A fuse (No.71, located in IPDM E/R)
to tail lamp relay, located in IPDM E/R, and
to CPU located in IPDM E/R,
through 15A fuse (No.78, located in IPDM E/R)
to CPU located in IPDM E/R.
Power is also supplied at all times
through 40A fusible link (letter F, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 10A fuse [No.18, located in fuse block (J/B)]
to BCM terminal 42,
through 10A fuse [No.19, located in fuse block (J/B)]
to unified meter and A/C amp. terminal 21,
through 10A fuse [No.19, located in fuse block (J/B)]
to combination meter terminal 24.
With ignition switch in the ON or START position, power is supplied
to CPU located in IPDM E/R,
through 10A fuse [No.1, located in fuse block (J/B)]
to BCM terminal 38,
through 10A fuse [No.12, located in fuse block (J/B)]
to unified meter and A/C amp. terminal 22, and
to NAVI control unit terminal 63 (With navigation system),
through 10A fuse [No.14, located in fuse block (J/B)]
to combination meter terminal 23.
With ignition switch in the ACC or ON position, power is supplied
through 10A fuse [No.6, located in fuse block (J/B)]
to BCM terminal 11.
Ground is supplied
to BCM terminal 52
through grounds M30 and M66,
to IPDM E/R terminals 38 and 60
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone),
to unified meter and A/C amp. terminals 29 and 30
through grounds M30 and M66,
to combination meter terminals 10, 11 and 12
through grounds M30 and M66,
to NAVI control unit terminal 1 (With navigation system)
through ground B115 (With navigation system).
