turn signal INFINITI M35 2007 Factory Service Manual

LT-214
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45

to BCM terminal 52

to combination meter terminals 9, 10 and 11

to unified meter and A/C amp. terminals 55 and 71

through grounds M16 and M70.
BCM then supplies power

through BCM terminal 45

to front combination lamp LH (turn signal) terminal 10

to side turn signal lamp LH terminal 1

to rear combination lamp LH (turn signal) terminal 3,

through BCM terminal 46

to front combination lamp RH (turn signal) terminal 10

to side turn signal lamp RH terminal 1

to rear combination lamp RH (turn signal) terminal 3.
Ground is supplied

to front combination lamp LH (turn signal) terminal 9

to front combination lamp RH (turn signal) terminal 9

to side turn signal lamp LH terminal 2

to side turn signal lamp RH terminal 2

through grounds E22 and E43,

to rear combination lamp LH (turn signal) terminal 4

to rear combination lamp RH (turn signal) terminal 4

through grounds B5, B40 and B131.
The BCM also supplies input to unified meter and A/C amp. terminals 56 and 72 across the CAN communica-
tion lines.
The unified meter and A/C amp. which received the turn indicator signal makes the left and right turn signal
indicator turn on in combination meter.
With power and input supplied, the BCM controls the flashing of the hazard warning lamps.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionNKS003RM
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 UnitNKS003RN
Refer to LAN-50, "CAN System Specification Chart" .

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-215
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
SchematicNKS003RO
TKWT3380E

LT-216
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45
Wiring Diagram — TURN —NKS003RP
TKWT3381E

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-217
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
TKWT5264E

LT-218
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45
TKWT5278E

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-219
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
TKWT4859E

LT-220
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45
Terminals and Reference Values for BCMNKS003RQ
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-II. Refer to LT- 2 3 8 , "
DATA MONITOR" .
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2L/RCombination
switch input 5ONLighting, turn, wiper
switch
(Wiper dial position 4)Turn signal switch to
right
Approx. 1.0 V
OFF Approx. 0 V
3 O/LCombination
switch input 4ONLighting, turn, wiper
switch
(Wiper dial position 4)Turn signal switch to left
Approx. 1.0 V
OFF Approx. 0 V
29 V/RHazard switch
signalOFF Hazard switchON Approx. 0 V
OFF Battery voltage
36 VCombination
switch output 1ONLighting, turn, wiper
switch
(Wiper dial position 4)
Any of several con-
ditions below

Turn signal switch to
right

Turn signal switch to
left
Approx. 1.2 V
OFF
Approx. 7.0 - 7.5 V
38 WIgnition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 PBattery power
supplyOFF — Battery voltage
PKIB4957J
PKIB4957J
PKIB4958J
PKIB4960J

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-221
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
How to Perform Trouble DiagnosesNKS003RR
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 2 1 2 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 2 2 2 , "
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 GFlasher output
(Left)ON Turn signal switchTo l e f t
OFF Approx. 0 V
46 LFlasher output
(Right)ON Turn signal switchTo right
OFF Approx. 0 V
52 B Ground ON — Approx. 0 V
55 WBattery power
supplyOFF — Battery voltage Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
SKIA3009J
SKIA3009J

LT-222
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45
Preliminary CheckNKS003RS
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-216, "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.
BCMBatteryF
21
Ignition switch ON or START position 1
Combination meterBattery 21
Ignition switch ON or START position 14
Unified meter and A/C amp.Battery 19
Ignition switch ON or START position 12
Terminal Ignition switch position
(+)
(-) OFF ON
BCM
connectorTerminal
M1 38
GroundApprox. 0 V Battery voltage
M242 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIB5199E
BCM connector Terminal
GroundContinuity
M2 52 Yes
SKIB5125E

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-223
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
CONSULT-II Functions (BCM)NKS003RT
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
DATA MONITOR
Operation Procedure
1. Touch “FLASHER” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on the “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is
selected, all the items will 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
ACTIVE TEST
Operation Procedure
1. Touch “FLASHER” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching “BACK” deactivates the operation.
Display Item List
BCM diagnosis part Diagnosis mode Description
FLASHERDATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending driving signal to them.
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitor them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch signal.
HAZARD SW “ON/OFF” Displays “hazard ON (ON)/hazard OFF (OFF)” status, determined from hazard switch signal.
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.
Test item Description
FLASHER (RIGHT) Turn signal lamp (right) can be operated by any ON-OFF operations.
FLASHER (LEFT) Turn signal lamp (left) can be operated by any ON-OFF operations.