2007 INFINITI M35 battery

ACTIVE AFS
LT-149
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Revision: 2007 April2007 M35/M45
Terminals and Reference Values for AFS Control UnitNKS003QJ
Te r -
minal
No.Wire
colorItemMeasuring condition
Reference value
Ignition
switchOperation or condition
1 B/R IGN power supply ON — Battery voltage
2W/RSwivel position sensor ground
(right)ON — Approx. 0 V
3 GR AFS switch signal ON AFS switchON Approx. 0 V
OFF Battery voltage
4YSwivel position sensor power
supply (right)ON — Approx. 5 V
6 V/W Height sensor power supply ON — Approx. 5 V
7 P CAN-L — — —
8 B/R Height sensor ground ON — Approx. 0 V
9W/BSwivel position sensor signal
(right)ONLow beam headlamp
(right) swivel angle0°Approx. 1.5 V
Maximum
angleApprox. 2.5 V
11 R Swivel motor 1 phase− (right) ON
Low beam headlamp
(right) swivelONReference waveform
Approx. 8 - 12 V
13 B Swivel motor 2 phase− (right) ON OFF Approx. 9.5 - 11.5 V
15 BR/L Swivel motor 1 phase+ (left) ON
Low beam headlamp
(left) swivelONReference waveform
Approx. 8 - 12 V
17 Y/G Swivel motor 2 phase+ (left) ON OFF Approx. 9.5 - 11.5 V
19 V Aiming motor drive signal (right) ONLow beam headlamp
(right) auto aimingUnloaded
vehicle posi-
tionApprox. 9 V
Maximum
laden condi-
tion Approx. 4.8 V
(With 18- inch wheel)
Approx. 5.2 V
(With 19 -inch wheel)
24 V/RSwivel position sensor power
supply (left)ON — Approx. 5 V
25 B Ground ON — Approx. 0 V
27 R/WSwivel position sensor ground
(left)ON — Approx. 0 V
SKIB2408J
SKIB2408J

ACTIVE AFS
LT-151
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Revision: 2007 April2007 M35/M45
How to Proceed with Trouble DiagnosisNKS003QK
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 3 4 , "
System Description" .
3. Perform the preliminary check. Refer to LT- 1 5 1 , "
Preliminary Check" .
4. Perform self-diagnosis by CONSULT-II. Refer to LT- 1 5 3 , "
SELF-DIAG RESULTS" .
5. Check symptom and repair or replace the cause of malfunction.
6. Does the AFS operate normally? If YES: GO TO 7. If NO: GO TO 4.
7. INSPECTION END
Preliminary CheckNKS003QL
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-143, "Wiring Diagram — AFS —" .
OK or NG
OK >> GO TO 2.
NG >> If the fuse is brown be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK AFS CONTROL UNIT VOLTAGE
1. Turn ignition switch ON.
2. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between AFS control unit harness connector
and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse No.
AFS control unit Ignition switch ON or START 12
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 1 Ground Battery voltage
SKIB4776E
AFS control unit
connectorTerminal
GroundContinuity
F110 25 Yes
SKIB4775E

LT-186
ACTIVE AFS
Revision: 2007 April2007 M35/M45
Circuit)" .
AFS Switch Does Not OperateNKS003QU
1. CHECK AFS SWITCH SIGNAL 1
1. Turn ignition switch ON.
2. Select “ADAPTIVE LIGHT” on CONSULT-II. Select “DATA
MONITOR” on “SELECT DIAG MODE” screen.
3. Make sure that “AFS SW” turn ON-OFF according to AFS switch
operation.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 2 , "Removal
and Installation of AFS Control Unit" .
NG >> GO TO 2.
2. CHECK AFS SWITCH
1. Turn ignition switch OFF.
2. Disconnect AFS switch connector.
3. Check continuity AFS switch.
OK or NG
OK >> GO TO 3.
NG >> Replace AFS switch. Refer to LT- 1 9 2 , "
Removal and
Installation of AFS Switch" .
3. CHECK AFS SWITCH SIGNAL 2
1. Connect AFS switch connector.
2. Turn ignition switch ON.
3. Check voltage between AFS control unit harness connector and
ground according to AFS switch operation.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 2 , "Removal
and Installation of AFS Control Unit" .
NG >>

If voltage is approx. 0 V and stays unchanged, GO TO 4.

If voltage is battery voltage and stays unchanged, GO TO 6.
SKIB4793E
AFS switch
Condition Continuity
Terminal
14AFS switch is ON. No
AFS switch is OFF. Yes
PKIC0684E
(+)
(-) ConditionVoltage
(Approx.) AFS control
unit connectorTe r m i n a l
F110 3 GroundAFS switch is ON. 0 V
AFS switch is OFF. Battery voltage
PKIC0683E

ACTIVE AFS
LT-187
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Revision: 2007 April2007 M35/M45
4. CHECK AFS SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS switch connector.
3. Turn ignition switch ON.
4. Check voltage between AFS switch harness connector and
ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK AFS SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS switch harness connector (A)
and AFS control unit harness connector (B).
OK or NG
OK >> Check connector for connection, bend and loose fit.
NG >> Repair harness or connector.
6. CHECK AFS SWITCH CIRCUIT (IGN POWER SUPPLY SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and AFS switch connector.
3. Turn ignition switch ON.
4. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 2 , "Removal
and Installation of AFS Control Unit" .
NG >> Repair harness or connector.
Terminals
Voltage
(Approx.) (+)
(-)
AFS switch connector Terminal
M96 1 Ground Battery voltage
PKIC0685E
AB
Continuity
Connector Terminal Connector Terminal
M96 4 F110 3 Yes
PKIC0686E
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 3 Ground Battery voltage
SKIB4992E

ACTIVE AFS
LT-189
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LT
Revision: 2007 April2007 M35/M45
4. CHECK AIMING MOTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Turn ignition switch ON.
3. Check voltage between front combination lamp (RH and LH)
harness connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK AIMING MOTOR GROUND
1. Turn ignition switch OFF.
2. Check continuity between front combination lamp (RH and LH)
harness connector and ground.
OK or NG
OK >> Replace front combination lamp RH and LH (aiming
motor malfunction). Refer to LT- 1 9 1 , "
Removal and
Installation of Front Combination Lamp" .
NG >> Repair harness or connector.
6. CHECK AIMING MOTOR DRIVE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connector.
3. Start engine.
4. Touch “ORIGIN” or “PEAK” screen in “LEVELIZER TEST”.
5. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> Replace front combination lamp RH and LH (aiming motor malfunction). Refer to LT- 1 9 1 ,
"Removal and Installation of Front Combination Lamp" .
NG >> GO TO 7.
(+)
(-)Voltage
(Approx.) Front combination
lamp connectorTerminal
RH E70 13
Ground Battery voltage
LH E71 13
PKIC0689E
Front combination
lamp connectorTerminal
GroundContinuity
RH E70 11
Ye s
LH E71 11
PKIC0690E
(+)
(-) ConditionVoltage
(Approx.) AFS control unit
connectorTerminal
RH
F11019
GroundORIGIN 10.6 V
PEAK 1.9 V
LH 40ORIGIN 10.6 V
PEAK 1.9 V
SKIB4960E

LT-196
FRONT FOG LAMP
Revision: 2007 April2007 M35/M45
FOG LAMP OPERATION
The fog lamp switch is built in combination switch. The lighting switch must be in 2ND position or AUTO posi-
tion (headlamp is ON) and fog lamp switch must be ON for fog lamp operation.
With the fog lamp switch in the ON position, the CPU located in IPDM E/R grounds coil side of the fog lamp
relay. Fog lamp relay then directs power

through IPDM E/R terminal 37

to front fog lamp RH terminal 1,

through IPDM E/R terminal 36

to front fog lamp LH terminal 1.
Ground is supplied

to front fog lamp RH terminal 2

through grounds E22 and E43,

to front fog lamp LH terminal 2

through grounds E22 and E43.
With power and grounds supplied, the front fog lamps illuminate.
The unified meter and A/C amp. that received the front fog lamp request signal by BCM across the CAN com-
munication makes a front fog lamp indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionNKS003R4
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 UnitNKS003R5
Refer to LAN-50, "CAN System Specification Chart" .

LT-202
FRONT FOG LAMP
Revision: 2007 April2007 M35/M45
Terminals and Reference Values for BCMNKS003R8
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" .
Termi-
nal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
3 O/LCombination
switch input 4ONLighting, turn, wiper
switch
(Wiper dial position
4)Front fog lamp switch
ON (Operates only front
fog lamp switch)
Approx. 0.8 V
OFF Approx. 0 V
11 VIgnition switch
(ACC)ACC — Battery voltage
32 LGCombination
switch output 5ONLighting, turn, wiper
switch
(Wiper dial position
4)Front fog lamp switch
ON (Operates only front
fog lamp switch)
Approx. 1.0 V
OFF
Approx. 7.0 - 7.5 V
37 LG Key switch signal OFFIntelligent Key is inserted into key slot. Battery voltage
Intelligent Key is removed from key slot. Approx. 0 V
38 WIgnition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 PBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0 V
55 WBattery power
supplyOFF — Battery voltage
PKIB4955J
PKIB4956J
PKIB4960J

FRONT FOG LAMP
LT-203
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Revision: 2007 April2007 M35/M45
Terminals and Reference Values for IPDM E/RNKS003R9
How to Perform Trouble DiagnosesNKS003RA
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 9 4 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 2 0 3 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the front fog lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckNKS003RB
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
62 VFront door switch
driver side signalOFFFront door switch
driver sideON (open) Approx. 0 V
OFF (closed)
Approx. 7.5 - 8.0 V Te r m i -
nal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
36 L/Y Front fog lamp (LH) ONLighting switch must be in
the 2ND position or AUTO
position (headlamp is ON)Front fog lamp switch: OFF Approx. 0 V
Front fog lamp switch: ON Battery voltage
37 W/R Front fog lamp (RH) ONLighting switch must be in
the 2ND position or AUTO
position (headlamp is ON)Front fog lamp switch: OFF Approx. 0 V
Front fog lamp switch: ON Battery voltage
38 B Ground ON — Approx. 0 V
49 L CAN − H— — —
50 P CAN − L— — —
51 B Ground ON — Approx. 0 V
Unit Power source Fuse and fusible link No.
BCMBatteryF
21
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
IPDM E/R Battery71
88
78