NISSAN TEANA 2003 Service Manual

REAR FOG LAMP
LT-143
C
D
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F
G
H
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J
L
MA
B
LT

Ground is supplied

to BCM terminal 52 and

to combination meter terminals 10, 11 and 12

through grounds M71and M72.
REAR FOG LAMP OPERATION
When the lighting switch is in rear fog lamp ON position and also in 1ST or 2ND position or AUTO position
(headlamp is ON), BCM detects RR FOG (ON) and the HEAD LAMP1, 2 (ON) or the AUTO LIGHT (ON) by
BCM combination switch reading function. And then, BCM sends rear fog lamp request signal (ON) through
CAN communication.
When receiving rear fog lamp request signal (ON), BCM supplies power

through BCM terminal 67

to rear fog lamp terminal 1.
Ground is supplied

to rear fog lamp terminal 2

through grounds B16 and B17.
With power and ground supplied, the rear fog lamp illuminates.
Unified meter and A/C amp. receives rear fog lamp request signal (ON) through CAN communication, and
make rear fog lamp indicator go ON in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
Refer to LT- 1 9 7 , "EXTERIOR LAMP BATTERY SAVER CONTROL" .
CAN Communication System DescriptionBKS001PA
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitBKS001PB
Refer to LAN-49, "CAN System Specification Chart" .

LT-144
REAR FOG LAMP

Wiring Diagram — R/FOG — BKS001PC
TKWM4591E

REAR FOG LAMP
LT-145
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L
MA
B
LT

TKWM4592E

LT-146
REAR FOG LAMP

Terminals and Reference Value for BCMBKS001PD
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
4RCombination switch
input 3ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF Approx. 0 V
Lighting switch rear
fog lamp ON position
(Operates only fog
lamp switch)
Approx. 1.0 V
11 V Ignition switch (ACC) ACC — Battery voltage
32 LG/BCombination switch
output 5ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF
Approx. 7.2 V
Lighting switch rear
fog lamp ON position
(Operates only fog
lamp switch)
Approx. 1.0 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
67 R/YRear fog lamp output
signalONLighting switch posi-
tionRear fog lamp ON Battery voltage
Rear fog lamp OFF Approx. 0 V
PKIB4955J
PKIB4960J
PKIB4956J

REAR FOG LAMP
LT-147
C
D
E
F
G
H
I
J
L
MA
B
LT

How to Proceed With Trouble DiagnosisBKS001PE
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 4 2 , "
System Description" .
3. Perform the Preliminary Check. Refer toLT- 1 4 7 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the rear fog lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckBKS001PF
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-144, "Wiring Diagram — R/FOG —" .
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" .
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.
Unit Power source Fuse and fusible link No.
BCMBatteryM
17
Ignition switch ACC or ON position 6
Ignition switch ON or START position 1
Terminals Ignition switch position
(+)
(-) OFF ACC ON
BCM
connectorTerminal
M311
GroundApprox. 0 VBattery
voltageBattery
voltage
38 Approx. 0 V Approx. 0 VBattery
voltage
M442Battery
voltageBattery
voltageBattery
voltage
55Battery
voltageBattery
voltageBattery
voltage
PKIA5204E

LT-148
REAR FOG LAMP

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 Function (BCM)BKS001PG
Refer to LT- 1 8 , "CONSULT-II Functions (BCM)" .
Rear Fog Lamp Does Not IlluminateBKS001PH
1. PERFORM BCM ACTIVE TEST
1. Select “BCM” on CONSULT-II, and select “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch “RR FOG LAMP” screen.
4. Check rear fog lamp operation.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-II
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 “RR FOG SW” turns ON-OFF according to light-
ing switch operation.
Without CONSULT-II
Refer to LT- 1 8 5 , "
Combination Switch Inspection" .
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Check combination switch (lighting switch). Refer to LT- 1 8 5 , "
Combination Switch Inspection" .
Connector Terminal
GroundContinuity
M4 52 Yes
PKIA6256E
Rear fog lamp should operate.
PKIB7213E
When lighting switch is in the
rear fog lamp ON position: RR FOG SW ON
PKIB7212E

REAR FOG LAMP
LT-149
C
D
E
F
G
H
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L
MA
B
LT

3. CHECK CIRCUIT BETWEEN BCM AND REAR FOG LAMP
1. Turn ignition switch OFF.
2. Disconnect BCM connector and rear fog lamp connector.
3. Check continuity between BCM harness connector (A) and rear
fog lamp harness connector (B).
4. Check continuity between BCM harness connector (A) and
ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK BCM OUTPUT VOLTAGE
With CONSULT-II
1. Connect BCM connector.
2. Select “BCM” on CONSULT-II, and select “HEAD LAMP” on “SELECT TEST ITEM” screen.
3. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Touch “RR FOG LAMP” screen.
5. When rear fog lamp is operating, check voltage between BCM
harness connector and ground.
Without CONSULT-II
1. Connect BCM connector.
2. Lighting switch is turned 1ST position and rear fog lamp ON
position.
3. When rear fog lamp is operating, check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace BCM. Refer to BCS-16, "
Removal and Installation of BCM" .
AB
Continuity
Connector Terminal Connector Terminal
M5 67 B30 1 Yes
A
GroundContinuity
Connector Terminal
M5 67 No
PKID0090E
Terminals
Voltage
(Approx.) (+)
(-)
BCM connector Terminal
M5 67 Ground Battery voltage
Terminals
Voltage
(Approx.) (+)
(-)
BCM connector Terminal
M5 67 Ground Battery voltage
PKID0091E

LT-150
REAR FOG LAMP

5. CHECK CIRCUIT BETWEEN REAR FOG LAMP AND GROUND
1. Turn ignition switch OFF.
2. Check continuity between rear fog lamp harness connector and
ground.
OK or NG
OK >> Check rear fog lamp bulb.
NG >> Repair harness or connector.
Rear Fog Lamp Indicator Lamp Does Not IlluminateBKS001PI
1. CHECK UNIFIED METER AND A/C AMP.
1. Select “METER A/C AMP” on CONSULT-II, and perform self-
diagnosis for “METER A/C AMP”.
2. Check if malfunction is indicated.
Is malfunction indicated?
YES >> Repair or Replace malfunctioning parts.
NO >> GO TO 2.
2. CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure that “RR FOG IND” turns ON-OFF according to light-
ing switch operation.
OK or NG
OK >> Replace combination meter. DI-25, "Disassembly and
Assembly of Combination Meter" .
NG >> Replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C
Amp." .
Rear fog lamp connector Terminal
GroundContinuity
B30 2 Yes
PKID0092E
PKIA6866E
When lighting switch is in the
rear fog lamp ON position: RR FOG IND ON
PKID0093E

REAR FOG LAMP
LT-151
C
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B
LT

Rear Fog Lamp Does Not Go OFFBKS001PJ
1. PERFORM BCM ACTIVE TEST
1. Select “BCM” on CONSULT-II, and select “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch “RR FOG LAMP” screen.
Does rear fog lamp turn OFF?
YES >> GO TO 2.
NO >> Replace BCM. Refer to BCS-16, "
Removal and Installa-
tion of BCM" .
2. CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-II
1. Select “BCM” on CONSULT-II, and select “HEADLAMP” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure that “RR FOG SW” turns ON-OFF according to light-
ing switch operation.
Without CONSULT-II
Refer to LT- 1 8 5 , "
Combination Switch Inspection" .
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Check combination switch (lighting switch). Refer to LT- 1 8 5 , "
Combination Switch Inspection" .
Bulb ReplacementBKS001PK
Refer to LT- 2 1 6 , "Bulb Replacement" .
Removal and InstallationBKS001PL
Refer to LT- 2 1 6 , "Removal and Installation" .
PKIB7213E
When lighting switch is in the
rear fog lamp OFF position: RR FOG SW OFF
PKID0280E

LT-152
TURN SIGNAL AND HAZARD WARNING LAMPS

TURN SIGNAL AND HAZARD WARNING LAMPSPFP:26120
Component Parts and Harness Connector LocationBKS001PM
System DescriptionBKS001PN

BCM (Body Control Module) controls turn signal lamp (RH and LH) and hazard warning lamp operation.

Unified meter and A/C amp. operates turn (RH and LH) indicator according to CAN communication sig-
nals from BCM.
OUTLINE
Power is supplied at all times

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

to BCM terminal 55,

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

to BCM terminal 42 and

to combination meter terminal 7.
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,

through 10A fuse [No. 14, located in fuse block (J/B)]

to combination meter terminal 8.
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.
PKIB0249E