Power NISSAN TEANA 2003 Service Manual

REAR FOG LAMP
LT-143
C
D
E
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-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-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

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-153
C
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B
LT

Ground is supplied

to BCM terminal 52 and

to combination meter terminals 10, 11 and 12

through grounds M71 and M72.
TURN SIGNAL OPERATION
Turn Signal Lamp RH
When the turn signal switch is in RH position with the ignition switch in ON position, BCM detects the TURN
RH (ON) by BCM combination switch reading function. BCM outputs the flasher output signal (right) to turn
signal lamp RH intermittently. And then, turn signal lamp RH start flashing operation. BCM sends turn indicator
signal (RH) through CAN communication. BCM supplies power

through BCM terminal 46

to front combination lamp RH terminal 8

to side turn signal lamp RH terminal 1 and

to rear combination lamp RH terminal 1.
Ground is supplied

to front combination lamp RH terminal 4 and

to side turn signal lamp RH terminal 2

through grounds E1 and E31,

to rear combination lamp RH terminal 2

through grounds M71 and M72 (with rear view camera)

through grounds B16 and B17 (without rear view camera).
Unified meter and A/C amp. receives the turn indicator signal (RH) through CAN communication, then makes
turn RH indicator start flashing operation interlocked with the buzzer sounds in combination meter.
With power and ground supplied, BCM controls the blinking of the turn signal lamp RH.
Turn Signal Lamp LH
When the turn signal switch is in LH position with the ignition switch in ON position, BCM detects the TURN LH
(ON) by BCM combination switch reading function. BCM outputs the flasher output signal (left) to turn signal
lamp LH intermittently. And then, turn signal lamp LH start flashing operation. BCM sends turn indicator signal
(LH) through CAN communication. BCM supplies power

through BCM terminal 45

to front combination lamp LH terminal 8

to side turn signal lamp LH terminal 1 and

to rear combination lamp LH terminal 1.
Ground is supplied

to front combination lamp LH terminal 4 and

to side turn signal lamp LH terminal 2

through grounds E1 and E31,

to rear combination lamp LH terminal 2

through grounds M71 and M72 (with rear view camera)

through grounds B16 and B17 (without rear view camera).
Unified meter and A/C amp. receives the turn indicator signal (LH) through CAN communication, then makes
turn LH indicator start flashing operation interlocked with the buzzer sounds in combination meter.
With power and ground supplied, BCM controls the blinking of the turn signal lamp LH.
HAZARD LAMP OPERATION
When the hazard switch is in ON position, BCM detects the hazard switch signal ON. BCM outputs the flasher
output signal (right) and flasher output signal (left) to turn signal lamp (RH and LH) intermittently. And then turn
signal lamp (RH and LH) start flashing operation. And BCM sends turn indicator signal (RH and LH) through
CAN communication. Hazard switch supplies ground

to BCM terminal 29

through hazard switch terminal 2,

to hazard switch terminal 1

LT-154
TURN SIGNAL AND HAZARD WARNING LAMPS


through grounds M71 and M72.
And BCM supplies power

through BCM terminal 46

to front combination lamp RH terminal 8

to side turn signal lamp RH terminal 1 and

to rear combination lamp RH terminal 1,

through BCM terminal 45

to front combination lamp LH terminal 8

to side turn signal lamp LH terminal 1 and

to rear combination lamp LH terminal 1.
Ground is supplied

to front combination lamp RH and LH terminals 4

to side turn signal lamp RH and LH terminals 2

through grounds E1 and E31,

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).
Unified meter and A/C amp. receives the turn indicator signal (RH and LH) through CAN communication, then
makes turn (RH and LH) indicator start flashing operation interlocked with the buzzer sounds in combination
meter.
With power and ground supplied, BCM controls the blinking of the hazard warning lamp.
INTERLOCKED HAZARD LAMP OPERATION WITH REMOTE KEYLESS ENTRY SYSTEM
BCM receives the keyfob signal (door lock/unlock signal) from remote keyless entry receiver, then BCM con-
trols hazard lamps.
Refer to BL-46, "
REMOTE KEYLESS ENTRY SYSTEM" .
INTERLOCKED HAZARD LAMP OPERATION WITH INTELLIGENT KEY SYSTEM
BCM receives the door lock/unlock signal from Intelligent Key unit through CAN communication, then BCM
controls hazard lamps.
Refer to BL-68, "
INTELLIGENT KEY SYSTEM" .
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionBKS001PO
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 UnitBKS001PP
Refer to LAN-49, "CAN System Specification Chart" .

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-159
C
D
E
F
G
H
I
J
L
MA
B
LT

Terminals and Reference Values for BCMBKS001PS
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
Turn signal switch RH
position
Approx. 1.0 V
3R/YCombination switch
input 4ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF Approx. 0 V
Turn signal switch LH
position
Approx. 1.0 V
11 V Ignition switch (ACC) ACC — Battery voltage
29 G/R Hazard switch signal OFF Hazard switchON Approx. 0 V
OFF Battery voltage
36 G/WCombination switch
output 1ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF
Approx. 7.2 V
Any of the conditions
below

Turn signal switch RH
position

Turn signal switch LH
position
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
PKIB4959J
PKIB4959J
PKIB4960J
PKIB4958J

LT-160
TURN SIGNAL AND HAZARD WARNING LAMPS

How to Perform Trouble DiagnosesBKS001PT
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 5 2 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 1 6 1 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do turn signal and hazard warning lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
45 G/YFlasher output signal
(left)ON Turn signal switchOFF Approx. 0 V
LH position
46 G/BFlasher output signal
(right)ON Turn signal switchOFF Approx. 0 V
RH position
52 B Ground ON — Approx. 0 V
55 W/B Battery power supply OFF — Battery voltage Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
SKIA3009J
SKIA3009J

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-161
C
D
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F
G
H
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MA
B
LT

Preliminary CheckBKS001PU
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-156, "Wiring Diagram — TURN —" .
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.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
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
Connector Terminal
GroundContinuity
M4 52 Yes
PKIA6256E

COMBINATION SWITCH
LT-183
C
D
E
F
G
H
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J
L
MA
B
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.