2003 NISSAN TEANA Power

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-205
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Terminals and Reference Values for BCMBKS001QP
CAUTION:

Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.

Turn wiper intermittent dial position to 4 except when checking waveform or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-II. Refer to LT-
184, "DATA MONITOR" .
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2BRCombination switch
input 5ONLighting, turn,
wiper switch
(Wiper intermittent
dial position 4)OFF Approx. 0 V
Lighting switch 1ST
position
Approx. 1.0 V
11 V Ignition switch (ACC) ACC — Battery voltage
33 G/YCombination switch
output 4ONLighting, turn,
wiper switch
(Wiper intermittent
dial position 4)OFF
Approx. 7.2 V
Lighting switch 1ST
position
(The same result with
lighting switch 2ND posi-
tion)
Approx. 1.2 V
38 R Ignition switch (ON) ON — Battery voltage
39 L CAN-H — — —
40 P CAN-L — — —
42 Y/R Battery power supply OFF — Battery voltage
52 B Ground ON — Approx. 0 V
55 W/B Battery power supply OFF — Battery voltage
PKIB4959J
PKIB4960J
PKIB4958J

LT-206
PARKING, LICENSE PLATE AND TAIL LAMPS

Terminals and Reference Values for IPDM E/RBKS001QQ
How to Perform Trouble DiagnosesBKS001QR
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 9 6 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 2 0 6 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do the parking, license and tail lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckBKS001QS
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-200, "Wiring Diagram — TAIL/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
22 R/LParking, license
plate and tail lampsON Lighting switchOFF Approx. 0 V
1ST, 2ND or AUTO (When
headlamp is turned ON)Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN− H— — —
49 P CAN− L— — —
60 B Ground ON — Approx. 0 V
Unit Power source Fuse and fusible link No.
BCMBatteryM
17
Ignition switch ACC or ON position 6
Ignition switch ON or START position 1
IPDM E/R Battery 71

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-207
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2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
CONSULT-II Functions (BCM)BKS001QT
Refer to LT- 1 8 , "CONSULT-II Functions (BCM)" .
CONSULT-II Functions (IPDM E/R)BKS001QU
Refer to LT- 2 0 , "CONSULT-II Functions (IPDM E/R)" .
Terminals Ignition switch position
(+)
(−)OFFACCON
BCM
connectorTerminal
M311
GroundApprox. 0 VBattery
voltageBattery
voltage
38 Approx. 0 V Approx. 0 VBattery
voltage
M442Battery
voltageBattery
voltageBattery
voltage
55 Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
BCM connector Terminal
GroundContinuity
M4 52 Yes
PKIA6256E

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-213
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Parking, License Plate and Tail Lamps Do Not Go OFFBKS002FT
1. CHECK IPDM E/R FUNCTION
Make sure that lighting switch is OFF. And then check if ignition switch is ON or OFF when parking, license
plate, and tail lamps go OFF.
Check results
Lamps go OFF when ignition switch is ON>>Replace IPDM E/R. Refer to PG-28, "Removal and Installation
of IPDM E/R" .
Lamps go OFF when ignition switch is OFF>>GO TO 2.
Lamps do not go OFF when ignition switch is ON and OFF.>>GO TO 4.
2. CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-II, and select “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure that “IGN ON SW” turns ON-OFF according to igni-
tion switch operation.
OK or NG
OK >> Replace BCM, refer to BCS-16, "Removal and Installa-
tion of BCM" or IPDM E/R, refer to PG-28, "Removal
and Installation of IPDM E/R" .
NG >> GO TO 3.
3. CHECK BCM POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installation of BCM" .
NG >> Repair harness or connector.When ignition switch is in
the ON position: IGN ON SW ON
When ignition switch is in
the OFF or ACC position: IGN ON SW OFF
PKID0285E
Terminal Ignition switch position
(+)
(−)OFFACCON
BCM
connectorTerminal
M3 38 Ground Approx. 0 V Approx. 0 VBattery
voltage
PKID0110E

INTERIOR ROOM LAMP
LT-219
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INTERIOR ROOM LAMPPFP:26410
Component Parts and Harness Connector LocationBKS001R4
System DescriptionBKS001R5
BCM (Body Control Module) controls the step lamp, the trunk room lamp, the interior room lamp timer and the
interior room lamp battery saver.
OUTLINE
Power is supplied at all times (without Intelligent Key system)

through 15A fuse [No. 17, located in fuse block (J/B)]

to key switch and key lock solenoid (key switch) terminal 1 and

to BCM terminal 42,

through 50A fusible link (letter M, located in fuse and fusible link block)

to BCM terminal 55.
PKID0347E

LT-220
INTERIOR ROOM LAMP

Power is supplied at all times (with Intelligent Key system)

through 15A fuse [No. 18, located in fuse block (J/B)]

to ignition knob switch, key switch and key lock solenoid terminals 3 and 7,

through 15A fuse [No. 17, located in fuse block (J/B)]

to BCM terminal 42,

through 50A fusible link (letter M, located in fuse and fusible link block)

to BCM terminal 55.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38.
Ground is supplied

to BCM terminal 52

through grounds M71 and M72.
SWITCH OPERATION
When the key switch and key lock solenoid (key switch) is ON (key is inserted), power is supplied (without
Intelligent Key system)

through the key switch and key lock solenoid terminal 4

to BCM terminal 37.
With power is supplied, BCM detects that the key is inserted.
When the ignition knob switch, key switch and key lock solenoid (key switch) is ON (key is inserted), power is
supplied (with Intelligent Key system)

through ignition knob switch, key switch and key lock solenoid terminal 8

to BCM terminal 37.
With power is supplied, BCM detects that the key is inserted.
When the ignition knob switch, key switch and key lock solenoid (ignition knob switch) is ON (ignition knob
switch is pushed), power is supplied (with Intelligent Key system)

through ignition knob switch key switch and key lock solenoid terminal 2

to Intelligent Key unit terminal 27.
With power is supplied, Intelligent Key unit detects that the ignition knob switch is pushed. Intelligent Key unit
sends ignition knob switch signal (ON) to BCM through CAN communication.
When the front door switch (driver side) is ON (door is opened), ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 2

through case ground of front door switch (driver side).
When the front door switch (passenger side) is ON (door is opened), ground is supplied

to BCM terminal 12

through front door switch (passenger side) terminal 2

through case ground of front door switch (passenger side).
When the rear door switch RH is ON (door is opened), ground is supplied

to BCM terminal 13

through rear door switch RH terminal 2

through case ground of rear door switch RH.
When the rear door RH is opened, ground is supplied

to BCM terminal 63

through rear door switch LH terminal 2

through case ground of rear door switch LH.
With ground is supplied, BCM detects that each door is opened.
When the front door lock assembly (driver side) (door unlock sensor) is ON (driver side door is unlocked),
ground is supplied

to BCM terminal 7

INTERIOR ROOM LAMP
LT-221
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through front door lock assembly (driver side) (door unlock sensor) terminal 4

through front door lock assembly (driver side) (door unlock sensor) terminal 5

through grounds M71 and M72.
With ground is supplied, BCM detects that the driver side door is unlocked.
When the front door lock assembly (driver side) (door unlock sensor) is OFF (door is locked), ground is not
supplied. And BCM detects that the driver side door is locked.
When the trunk lid lock assembly (trunk room lamp switch) is ON (trunk lid is opened), ground is supplied

to BCM terminal 57

through trunk lid lock assembly (trunk room lamp switch) terminal 3

through trunk lid lock assembly (trunk room lamp switch) terminal 1

through grounds B214 and B217.
With ground is supplied, BCM detects that the trunk lid is opened.
STEP LAMP OPERATION
When front door switch (driver side) or front door switch (passenger switch) is turned ON, front step lamp
(driver side) and front step lamp (passenger side) turns ON. Power is supplied

through 10A fuse [No. 21, located in fuse block (J/B)]

to front step lamp (driver side) terminal 1 and

to front step lamp (passenger side) terminal 1.
Ground is supplied

to front step lamp (driver side) terminal 2 and

to front step lamp (passenger side) terminal 2

through BCM terminal 47.
With power and ground supplied, front step lamp (driver side) and front step lamp (passenger side) illuminate.
And, front step lamp (driver side) and front step lamp (passenger side) turns OFF when front door switch
(driver side) and front door switch (passenger switch) are turned OFF.
TRUNK ROOM LAMP OPERATION
When trunk lid lock assembly (trunk room lamp switch) is turned ON (trunk lid is opened), trunk room lamp turn
ON. Power is supplied

through 10A fuse [No. 21, located in fuse block (J/B)]

to trunk room lamp terminal 1.
Ground is supplied

to trunk room lamp terminal 2

through BCM terminal 64.
With power and ground supplied, trunk room lamp illuminate.
And, trunk room lamp turns OFF when trunk lid lock assembly (trunk room lamp switch) is turned OFF.
INTERIOR ROOM LAMP TIMER OPERATION
The interior room lamp timer controls to turn ON/OFF of the map lamp, personal lamps and ignition keyhole
illumination when map lamp switch and personal lamp switch are in DOOR position.
BCM controls the interior room lamp timer according to the following signals.

Key switch signal

Door lock status signal (from front door lock assembly)

Front door switch (driver side) signal

Front door switch (passenger side) signal

Rear door switch RH signal

Rear door switch LH signal

Keyless lock/unlock signal (from remote keyless receiver)

Intelligent Key lock/unlock signal (from Intelligent Key unit through CAN communication)
And when those lamps are turned ON/OFF, the interior room lamp timer executes brightening/dimming control
for maximum 5 seconds. Brightening/dimming control time can be changed with CONSULT-II. Refer to LT- 2 3 3 ,
"WORK SUPPORT (INT LAMP)" .

LT-222
INTERIOR ROOM LAMP

When the map lamp, personal lamp and ignition keyhole illumination are turned ON by the interior room lamp
timer, power is supplied

through 10A fuse [No. 21, located in fuse block (J/B)]

to map lamp terminal 3

to personal lamp RH and LH terminals 2, and

to ignition keyhole illumination terminal 1.
Ground is supplied

to map lamp terminal 2

to personal lamp RH and LH terminals 1, and

to ignition keyhole illumination terminal 2

through BCM terminal 48
With power and ground supplied, the map lamp, personal lamp and ignition keyhole illumination illuminate.
Timer Operation Condition

When BCM detects driver door is unlocked, the key is not inserted in the ignition key cylinder (key switch
OFF), and ignition knob switch is OFF (with Intelligent Key system), it determines that conditions for inte-
rior room lamp timer operation are met, and turns the room lamp ON for 30 seconds.

When BCM detects key is removed from ignition key cylinder (key switch OFF), it determines that condi-
tions for interior room lamp timer operation are met, and turns the room lamp ON for 30 seconds.

When BCM detects driver door is closed, and the key is not inserted in the ignition key cylinder (key switch
OFF), and ignition knob switch is OFF (with Intelligent Key system), it determines that conditions for inte-
rior room lamp timer operation are met, and turns the room lamp ON for 30 seconds.

When ignition knob turns to OFF from ON, Intelligent Key unit sends ignition knob switch signal
(ON→OFF) through CAN communication. When BCM detect ignition knob switch is turned to OFF by igni-
tion knob switch signal (ON→OFF), and the key is not inserted in the ignition key cylinder (key switch
OFF), it determines that conditions for interior room lamp timer operation are met, and turns the room
lamp ON for 30 seconds.
BCM does not activate the timer even a door other than the driver door is opened.
*: Setting can be changed by CONSULT-II. Refer to LT- 2 3 3 , "
WORK SUPPORT (INT LAMP)" .
Conditions for Canceling Timer
Timer operation is cancelled in any of the following conditions.

Driver door is locked.

Driver door is opened.

Ignition key switch or ignition knob is ON.
INTERIOR ROOM LAMP BATTERY SAVER CONTROL
If the interior room lamp switch is in DOOR position and the lamps left illuminated due to incompletely closed
door, BCM turns OFF the room lamp and ignition keyhole illumination in 30 or 60 minutes to prevent run down
of the battery. (Timer setting can be changed by CONSULT-II. Refer to LT- 2 3 4 , "
WORK SUPPORT (BATTERY
SAVER)" .)

When the ignition key switch or ignition knob is turned from ON to OFF, the timer is activated.

When any of the following door switch signal condition is changed with the ignition key switch in OFF posi-
tion, the timer is activated when the change is occurred.
Door switch signals: front door switch (driver side and passenger side) signal, rear door switch (LH and RH)
signal, front door lock assembly signal, key switch signal, ignition knob switch signal, central door unlock
switch signal and remote control unlock signal.