bcm terminal NISSAN 350Z 2007 Z33 Lighting System Owner's Manual

TURN SIGNAL AND HAZARD WARNING LAMPS
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TURN SIGNAL AND HAZARD WARNING LAMPSPFP:26120
Component Parts and Harness Connector LocationNKS004Y3
System DescriptionNKS004Y4
TURN SIGNAL OPERATION
When the ignition switch is in ON or START position, power is supplied

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

to BCM (body control module) terminal 38,

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

to unified meter and A/C amp. terminal 22,

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

to combination meter terminal 23.
Ground is supplied

to BCM terminal 52

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

to combination meter terminals 10, 11 and 12

through grounds M30 and M66.
LH Turn Signal Lamp
When the turn signal switch is moved to the left position, the BCM receives left turn signal by combination
switch reading function (Refer to BCS-3, "
COMBINATION SWITCH READING FUNCTION" ). Power is sup-
plied

through BCM terminal 45

to front combination lamp LH terminal 2
PKIC4853E

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to rear combination lamp LH terminal 2.
Ground is supplied

to front combination lamp LH terminal 8

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 rear combination lamp LH terminal 4

through grounds B5, B6, D105 and T14 (Coupe models)

through grounds B5, B6 and T14 (Roadster models).
The BCM also supplies ground to unified meter and A/C amp. terminals 1and 11 through the CAN communica-
tion lines. This input signal is processed by the unified meter control unit in the combination meter through uni-
fied meter and A/C amp., which in turn supplies ground to left turn signal indicator lamp.
With the power and ground supplied, BCM controls the flashing of LH turn signal lamps.
RH Turn Signal Lamp
When the turn signal switch is moved to the right position, the BCM receives right turn signal by combination
switch reading function (Refer to BCS-3, "
COMBINATION SWITCH READING FUNCTION" ). Power is sup-
plied

through BCM terminal 46

to front combination lamp RH terminal 2

to rear combination lamp RH terminal 2.
Ground is supplied

to front combination lamp RH terminal 8

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 rear combination lamp RH terminal 4

through grounds B5, B6, D105 and T14 (Coupe models)

through grounds B5, B6 and T14 (Roadster models).
The BCM also supplies ground to unified meter and A/C amp. terminals 1 and 11 through CAN communication
lines. This input signal is processed by unified meter control unit in combination meter through unified meter
and A/C amp., which in turn supplies ground to the right turn signal indicator lamp.
With power and ground supplied, BCM controls the flashing of RH turn signal lamps.
HAZARD WARNING LAMP OPERATION
Power is 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 combination meter terminal 24, and

to unified meter and A/C amp. terminal 21.
Ground is supplied

to BCM terminals 52

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

to combination meter terminals 10, 11 and 12

through grounds M30 and M66.
When the hazard switch is depressed, power is supplied

through BCM terminal 29

to hazard lamp switch terminal 2.
Ground is supplied

through hazard lamp switch terminal 1

to grounds M30 and M66.

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The BCM then supplies power

through BCM terminal 45

to front combination lamp LH terminal 2

to rear combination lamp LH terminal 2,

through BCM terminal 46

to front combination lamp RH terminal 2

to rear combination lamp RH terminal 2.
Ground is supplied

to front combination lamp LH terminal 8, and

to front combination lamp RH terminal 8

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 rear combination lamp LH terminal 4, and

to rear combination lamp RH terminal 4

through grounds B5, B6, D105 and T14 (Coupe models)

through grounds B5, B6 and T14 (Roadster models).
The BCM also supplies input to unified meter and A/C amp. terminals 1 and 11 through the CAN communica-
tion lines. This input signal is processed by the unified meter control unit in the combination meter through the
unified meter and A/C amp., which in turn supplies ground to the left and right turn signal indicator lamps.
With the power and ground supplied, BCM controls the flashing of hazard warning lamps.
REMOTE KEYLESS ENTRY SYSTEM OPERATION
Refer to BL-59, "REMOTE KEYLESS ENTRY SYSTEM" .
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionNKS004Y5
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 UnitNKS004Y6
Refer to LAN-48, "CAN System Specification Chart" .

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Terminals and Reference Values for BCMNKS004Y9
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 dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-III. Refer to LT- 9 1 , "
DATA MONITOR" .
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2GYCombination
switch input 5ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF Approx. 0 V
Turn signal switch to right
Approx. 1.0 V
3L/WCombination
switch input 4ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF Approx. 0 V
Turn signal switch to left
Approx. 1.0 V
11 L GIgnition switch
(ACC)ACC — Battery voltage
29 G/R Hazard signal OFF Hazard switch OFF Battery voltage
ON Approx. 0 V
36 W/RCombination
switch output 1ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF
Approx. 7.2 V
Any of the conditions below

Turn signal switch to right

Turn signal switch to left
Approx. 1.2 V
38 W/LIgnition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
PKIB4959J
PKIB4959J
PKIB4960J
PKIB4958J

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Preliminary CheckNKS004YB
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT- 6 9 , "
Wiring Diagram — TURN —" .
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 connectors.
3. Check voltage between BCM harness connector terminals and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector terminal and
ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
UNIT POWER SOURCE Fuse and fusible link No.
BCMBatteryF
18
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
Terminals Ignition switch position
(+)
(-) OFF ON
BCM
connectorTerminal
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

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Turn Signal Lamp Does Not OperateNKS004YD
1. CHECK BULB
Check bulb standard of each turn signal lamp is correct.
OK or NG
OK >> GO TO 2.
NG >> Replace turn signal lamp bulb.
2. CHECK COMBINATION SWITCH INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Select "TURN SIGNAL R" and "TURN SIGNAL L" of BCM data monitor item.
2. With operating the lighting switch, check the monitor status.
CHECK COMBINATION SWITCH
Refer to LT- 9 2 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Check combination switch (lighting switch). Refer to LT- 9 2 , "
Combination Switch Inspection" .
3. ACTIVE TEST
CONSULT-III ACTIVE TEST
1. Select "FLASHER" of BCM active test item.
2. With operating the test item, check the turn signal lamp operation.
GO TO 4
OK or NG
OK >> Replace BCM. Refer to BCS-17, "Removal and Installation of BCM" .
NG >> GO TO 4.
4. CHECK SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and all turn signal lamp connectors.
3. Check continuity (short circuit) between BCM harness connector
and ground.
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-17, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.When lighting switch is
TURN RH position: TURN SIGNAL R ON
When lighting switch is
TURN LH position: TURN SIGNAL L ON
Turn signal lamp should operate.
BCM connector Terminal
GroundContinuity
RH
M9146
No
LH 45
PKIB5067E

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Hazard Warning Lamp Does Not Operate But Turn Signal Lamp OperateNKS004YE
1. CHECK BULB
Make sure bulb standard of each turn signal lamp is correct.
OK or NG
OK >> GO TO 2.
NG >> Replace bulb.
2. CHECK HAZARD SWITCH INPUT SIGNAL
With CONSULT-III
1. Select "HAZARD SW" of BCM data monitor item.
2. With operating the hazard switch, check the monitor status.
Without CONSULT-III
Check voltage between hazard switch harness connector and
ground.
OK or NG
OK >> Replace BCM. Refer to BCS-17, "Removal and Installa-
tion of BCM" .
NG >> GO TO 3.
3. CHECK HAZARD SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and hazard switch connector.
3. Check continuity BCM harness connector and hazard switch
harness connector.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.When hazard switch is ON
position : HAZARD SW ON
Terminal
ConditionVo l ta g e
(Approx.) (+)
(-)
Hazard switch
connectorTerminal
M98 2 GroundHazard switch is ON 0V
Hazard switch is OFF 5V
PKIB5184E
Terminals
Continuity BCM Hazard switch
Connector Terminal Connector Terminal
M90 29 M98 2 Yes
PKIA7018E

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4. CHECK GROUND
Check continuity hazard switch harness connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK HAZARD SWITCH
Check continuity hazard switch.
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-17, "
Removal
and Installation of BCM" .
NG >> Replace hazard switch.
Turn Signal Indicator Lamp Does Not OperateNKS004YF
1. CHECK BULB
Check bulb of turn signal indicator lamp in combination meter.
OK or NG
OK >> Replace combination meter.
NG >> Replace indicator bulb.
Bulb Replacement (Front Turn Signal Lamp)NKS004YG
Refer to LT- 2 8 , "Bulb Replacement" .
Bulb Replacement (Rear Turn Signal Lamp)NKS004YH
Refer to LT- 1 2 6 , "Bulb Replacement" .
Removal and Installation of Front Turn Signal LampNKS004YI
Refer to LT- 2 9 , "Removal and Installation" .
Removal and Installation of Rear Turn Signal Lamp NKS004YJ
Refer to LT- 1 2 7 , "Removal and Installation" .
Hazard switch
connectorTerminal
Ground Continuity
M98 1 Yes
SKIA8972E
Terminal
Condition Continuity
Hazard switch
12Hazard switch is ON. Yes
Hazard switch is OFF. No
PKIA4601E

COMBINATION SWITCH
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Combination Switch Reading FunctionNKS004YN
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
Terminals and Reference Values for BCMNKS004YO
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 dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-III. Refer to LT- 9 1 , "
DATA MONITOR" .
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2GYCombination
switch input 5ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below

Lighting switch 1ST

Lighting switch HIGH beam
(Operates only HIGH beam
switch)

Turn signal switch to right
Approx. 1.0 V
Lighting switch 2ND
Approx. 2.0 V
3L/WCombination
switch input 4ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below

Lighting switch 2ND

Lighting switch PASSING
(Operates only PASSING
switch)

Turn signal switch to left
Approx. 1.0 V
4PU/WCombination
switch input 3ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below

Front wiper switch MIST

Front wiper switch INT

Front wiper switch LO
Approx. 1.0 V
PKIB4959J
PKIB4953J
PKIB4959J
PKIB4959J

COMBINATION SWITCH
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3. HARNESS INSPECTION
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check for continuity between BCM harness connector of the suspect system and the corresponding com-
bination switch harness connector.
4. Check for continuity between BCM harness connector in suspect malfunctioning system and ground.
OK or NG
OK >> GO TO 4.
NG >> Check harness between BCM and combination switch for open or short circuit.
Sus-
pect
systemBCM Combination switch
Continuity
Connector Terminal Connector Terminal
1
M90Input 1 6
M296
Ye s Output 1 36 1
2Input 2 5 7
Output 2 35 2
3Input 3 4 10
Output 3 34 3
4Input 4 3 9
Output 4 33 4
5Input 5 2 8
Output 5 32 5
Suspect
systemBCM
GroundContinuity
Connector Terminal
1
M90Input 1 6
No Output 1 36
2Input 2 5
Output 2 35
3Input 3 4
Output 3 34
4Input 4 3
Output 4 33
5Input 5 2
Output 5 32
PKIB6168E
PKIA7506E