2003 NISSAN TEANA light

COMBINATION SWITCH
LT-183
C
D
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MA
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LT

Combination Switch Reading FunctionBKS001Q8
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CONSULT-II Functions (BCM)BKS001Q9
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
35 G/BCombination
switch output 2ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF
Approx. 7.2 V
Any of the conditions below

Lighting switch 2ND position

Lighting switch PASSING position
(Operates only PASSING switch)

Front wiper switch INT position

Front wiper switch HI position
Approx. 1.2 V
36 G/WCombination
switch output 1ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF
Approx. 7.2 V
Any of the conditions below

Turn signal switch RH position

Turn signal switch LH position

Front wiper switch MIST position

Front wiper switch LO position

Front washer switch ON position
Approx. 1.2 V
38 RIgnition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 Y/RBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0 V
55 W/BBattery power
supplyOFF — Battery voltage Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
BCM diagnosis part Diagnosis mode Description
COMB SW DATA MONITOR Displays BCM input data in real time.

LT-184
COMBINATION SWITCH

CONSULT-II BASIC OPERATION
Refer to GI-34, "CONSULT-II Start Procedure" .
DATA MONITOR
Operation Procedure
1. Touch “COMB SW” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.
4. When “ALL SIGNALS” is selected, all the items will be monitored. When “SELECTION FROM MENU” is
selected, touch individual items to be monitored.
5. Touch “START”.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.
Display Item List
NOTE:
This item is displayed, but cannot be monitored.ALL SIGNALS Monitors all the items.
SELECTION FROM MENU Selects items and monitor them.
Monitor item name Contents
TURN SIGNAL R “ON/OFF” Displays “Turn Right (ON)/other (OFF)” status, determined from lighting switch signal.
TURN SIGNAL L “ON/OFF” Displays “Turn Left (ON)/other (OFF)” status, determined from lighting switch signal.
HI BEAM SW “ON/OFF”Displays status (high beam switch: ON/others: OFF) of high beam switch judged from lighting
switch signal.
HEAD LAMP SW 1 “ON/OFF”Displays status (headlamp switch 1: ON/others: OFF) of headlamp switch 1 judged from light-
ing switch signal.
HEAD LAMP SW 2 “ON/OFF”Displays status (headlamp switch 2: ON/others: OFF) of headlamp switch 2 judged from light-
ing switch signal.
LIGHT SW 1ST “ON/OFF”Displays status (lighting switch 1ST or 2ND position: ON/others: OFF) of lighting switch
judged from lighting switch signal.
PASSING SW “ON/OFF”Displays status (flash-to-pass switch: ON/others: OFF) of flash-to-pass switch judged from
lighting switch signal.
AUTO LIGHT SW “ON/OFF” Displays “Auto light switch (ON)/other (OFF)” status, determined from lighting switch signal.
FR FOG SW “ON/OFF”Displays “front fog lamp switch (ON)/other (OFF)” status, determined from lighting switch sig-
nal.
RR FOG SW “ON/OFF”Displays “rear fog lamp switch (ON)/other (OFF)” status, determined from lighting switch sig-
nal.
FR WIPER HI “ON/OFF” Displays “Front Wiper HI (ON)/other (OFF)” status, determined from wiper switch signal.
FR WIPER LOW “ON/OFF” Displays “Front Wiper LOW (ON)/other (OFF)” status, determined from wiper switch signal.
FR WIPER INT “ON/OFF” Displays “Front Wiper INT (ON)/other (OFF)” status, determined from wiper switch signal.
FR WASHER SW “ON/OFF” Displays “Front Washer Switch (ON)/other (OFF)” status, determined from wiper switch signal.
INT VOLUME “1 - 7” Displays intermittent operation knob setting (1 - 7), determined from wiper switch signal.
RR WIPER ON
NOTE“OFF” —
RR WIPER INT
NOTE“OFF” —
RR WASHER SW
NOTE“OFF” —

LT-186
COMBINATION SWITCH

2. SYSTEM CHECK
With CONSULT-II
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Connect CONSULT-II, and select “COMB SW” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR”.
3. Select “START”, and confirm that other switches in malfunction-
ing system operate normally.
Example: Check that the switches of INPUT5 and OUTPUT1 if the TURN RH is malfunction.
–INPUT5
Check that the ON-OFF operation of “HEAD LAMP SW 1”, “HI BEAM SW” and “LIGHT SW 1ST” is nor-
mal.
–OUTPUT5
Check that the ON-OFF operation of “TURN SIGNAL L”, “FR WIPER LOW” and “FR WASHER SW” is
normal.
Without CONSULT-II
Check combination switch INPUT/OUTPUT signal. Refer to LT- 1 7 9 , "
Terminals and Reference Values for
BCM" .
Check results
Other switches in malfunctioning system operate normally.>>Replace lighting switch or wiper switch.
Other switches in malfunctioning system do not operate normally.>>GO TO 3.
SKIB4816E

LT-188
COMBINATION SWITCH

4. CHECK BCM INPUT SIGNAL
1. Connect BCM connector and combination switch connector.
2. Turn ignition switch ON.
3. Lighting switch and wiper switch are turned OFF.
4. Set wiper intermittent dial position 4.
5. Check BCM input terminal voltage waveform of suspect mal-
functioning system.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installation of BCM" .
NG >> Open circuit in combination switch, GO TO 6.
5. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector and combination switch connector.
2. Turn ignition switch ON.
3. Lighting switch and wiper switch are turned OFF.
4. Set wiper intermittent dial position 4.
5. Check BCM output terminal voltage waveform of suspect mal-
functioning system.
OK or NG
OK >> Open circuit in combination switch, GO TO 6.
NG >> Replace BCM. Refer to BCS-16, "
Removal and Installation of BCM" .
Suspect
systemTerminal
Reference value (+)
(-)
BCM
connectorTerminal
1
M36
GroundRefer to LT-179, "
Terminals and
Reference Values for BCM" . 25
34
43
52PKID0106E
Suspect
systemTerminal
Reference value (+)
(-)
BCM
connectorTerminal
1
M336
Ground
Approx. 7.0 - 7.5V 235
334
433
532
PKID0107E
PKIB4960J

COMBINATION SWITCH
LT-189
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LT

6. CHECK COMBINATION SWITCH
Referring to table below, perform combination switch inspection.
>> INSPECTION END
Removal and InstallationBKS001QB
Refer to LT- 1 7 6 , "LIGHTING AND TURN SIGNAL SWITCH" .
Procedure
12 3 4 5 6 7
Replace
lighting
switchConfirm
check
resultsOK INSPECTION END Confirm
check
resultsOK INSPECTION END Confirm
check
resultsOK INSPECTION END
NG Replace wiper switch NG Replace switch base NG Confirm symptom again

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-197
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LT


to unified meter and A/C amp. terminal 21.
With the ignition switch in the ON or START position, power is supplied

to ignition relay (located in IPDM E/R),

through 10A 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 8,

through 10A fuse [No. 12, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 22.
With the 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

to combination meter terminals 10, 11 and 12, and

to unified meter and A/C amp. terminals 29 and 30

through grounds M71 and M72,

to IPDM E/R terminals 38 and 60

through grounds E1 and E31.
PARKING, LICENCE PLATE AND TAIL LAMPS OPERATION
When the lighting switch is in 1ST position, BCM detects the LIGHTING SWITCH 1ST POSITION (ON) by
BCM combination switch reading function. And then, BCM sends position light request signal (ON) through
CAN communication.
When receiving position light request signal (ON), IPDM E/R turns ON tail lamp relay in IPDM E/R. And then,
parking, license plate and tail lamps go ON. IPDM E/R supplies power

through IPDM E/R terminal 22

to front combination lamp RH and LH terminals 7

to license plate lamp RH and LH terminals 1 and

to rear combination lamp RH and LH terminals 3.
Ground is supplied at all times

to front combination lamp RH and LH terminals 4

through grounds E1 and E31,

to license plate lamp RH and LH terminals 2

through grounds B214 and B217,

to rear combination lamp RH and LH terminals 2

through grounds M71 and M72 (with rear view camera)

through grounds B16 and B17 (without rear view camera).
With power and ground supplied, the parking, license plate and tail lamps illuminate.
Unified meter and A/C amp. receives position light request signal (ON) through CAN communication, make tail
lamp indicator go ON in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When any of the 1ST/2ND position with exterior lamp ON, the ignition switch is turned to OFF. The driver's
door is opened to get out of the car and then closed, BCM turns OFF exterior lamp with door lock operation of
the remote keyless entry system or Intelligent Key system in order to prevent battery from running by forget-
ting about turning OFF the exterior lamp.
This setting can be changed by CONSULT-II. Refer to LT- 1 9 , "
WORK SUPPORT" .

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-205
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LT

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