2006 INFINITI M35 ground

LT-188
ACTIVE AFS
Revision: 2006 January2006 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 har-
ness 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 0 , "
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 0 ,
"Removal and Installation of Front Combination Lamp" .
NG >> GO TO 7.
(+)
(-) Voltage
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
(+)
(-) Condition Voltage
AFS control unit
connectorTerminal
RH
F11019
GroundORIGIN Approx. 10.6 V
PEAK Approx. 1.9 V
LH 40ORIGIN Approx. 10.6 V
PEAK Approx. 1.9 V
SKIB4960E

ACTIVE AFS
LT-189
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Revision: 2006 January2006 M35/M45
7. CHECK AIMING MOTOR DRIVE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harness connector
(A) and front combination lamp LH/RH harness connector (B).
4. Check continuity between AFS control unit harness connector
(A) and ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT-191, "Removal and Installation of AFS Control Unit" .
NG >> Repair harness or connector.
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH
F11019 E70 12
Ye s
LH 40 E71 12
A
GroundContinuity
Connector Terminal
F11019
No
40
PKIC0691E

LT-194
FRONT FOG LAMP
Revision: 2006 January2006 M35/M45
OUTLINE
Power is supplied at all times
through 15A fuse (No. 88, located in IPDM E/R)
to front fog lamp relay, located in IPDM E/R,
through 15A fuse (No. 78, located in IPDM E/R)
to CPU, located in IPDM E/R,
through 15A fuse (No. 71, located in IPDM E/R)
to CPU, located in IPDM E/R,
through 50A fusible link (letter F, located in fuse fusible link and relay block)
to BCM terminal 55,
through 10A fuse [No. 21, located in fuse block (J/B)]
to BCM terminal 42, and
to combination meter terminal 23,
through 10A fuse [No. 19, located in fuse block (J/B)]
to unified meter and A/C amp. terminal 54,
through 10A fuse [No. 22, located in fuse block (J/B)]
to key slot terminal 1.
With the ignition switch in the ON or START position, power is supplied
to CPU, located in IPDM E/R,
through 15A 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 12,
through 10A fuse [No. 12, located in fuse block (J/B)]
to unified meter and A/C amp. terminal 53.
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.
Ground is supplied
to BCM terminal 52
to combination meter terminals 9, 10 and 11
to unified meter and A/C amp. terminals 55 and 71
to engine switch (push switch) terminal 1
to key slot terminal 8
through grounds M16 and M70,
to IPDM E/R terminals 38 and 51
through grounds E22 and E43.

FRONT FOG LAMP
LT-195
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Revision: 2006 January2006 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-34, "CAN Communication Unit" .

FRONT FOG LAMP
LT-201
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Revision: 2006 January2006 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- 5 8 , "
DATA MONITOR" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
3O/LCombination
switch input 4ONLighting, turn, wiper
switch
(Wiper dial position 4)Front fog lamp switch
ON (Operates only front
fog lamp switch)
Approx. 0.8V
OFF Approx. 0V
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. 1.0V
OFF
Approx. 7.0 - 7.5V
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. 0V
55 WBattery power
supplyOFF — Battery voltage
PKIB4955J
PKIB4956J
PKIB4960J

LT-202
FRONT FOG LAMP
Revision: 2006 January2006 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 3 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT-202, "
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 FUSE
Check for blown fuses.
Refer to LT-197, "Wiring Diagram — F/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" .
Terminal
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. 0V
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. 0V
Front fog lamp switch: ON Battery voltage
38 B Ground ON — Approx. 0V
49 L CAN
H — — —
50 P CAN
L — — —
51 B Ground ON — Approx. 0V
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

FRONT FOG LAMP
LT-203
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Revision: 2006 January2006 M35/M45
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 >> Check harness for open or short between BCM and
fuse.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check harness ground circuit.
CONSULT-II Functions (BCM)NKS003RC
Refer to LT- 5 7 , "CONSULT-II Functions (BCM)" in HEADLAMP —XENON TYPE—.
Refer to LT- 2 2 , "
CONSULT-II Functions (BCM)" in HEADLAMP —CONVENTIONAL TYPE—.
CONSULT-II Functions (IPDM E/R)NKS003RD
Refer to LT- 6 0 , "CONSULT-II Functions (IPDM E/R)" in HEADLAMP —XENON TYPE—.
Refer to LT- 2 5 , "
CONSULT-II Functions (IPDM E/R)" in HEADLAMP —CONVENTIONAL TYPE—.
Terminal Ignition switch position
(+)
(-) OFF ACC ON
BCM
connectorTerminal
M111
GroundApprox. 0VBattery
voltageBattery
voltage
38 Approx. 0V Approx. 0VBattery
voltage
M242Battery
voltageBattery
voltageBattery
voltage
55Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
BCM connector Terminal
GroundContinuity
M2 52 Yes
SKIB5125E

FRONT FOG LAMP
LT-205
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Revision: 2006 January2006 M35/M45
4. CHECK FOG LAMP INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front fog lamp RH and LH connector.
3. Select “IPDM E/R” on CONSULT-II. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “LAMPS” on “SELECT TEST ITEM” screen.
5. Touch “FOG” screen.
6. Check voltage between front fog lamp (RH and LH) harness
connector and ground.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front fog lamp (RH and LH) connector.
3. Start auto active test. Refer to PG-24, "
Auto Active Test" .
4. When fog lamp is operating, check voltage between front fog lamp (RH and LH) harness connector and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 6.
5. CHECK FOG LAMP GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front fog lamp (RH and LH) harness
connector and ground.
OK or NG
OK >> Check front fog lamp bulbs.
NG >> Repair harness or connector.
Te r m i n a l
Voltage (+)
(-)
Front fog lamp connector Terminal
RH E45 1
Ground Battery voltage
LH E60 1
Te r m i n a l
Voltag e (+)
(-)
Front fog lamp connector Terminal
RH E45 1
Ground Battery voltage
LH E60 1
PKIA6276E
Front fog lamp connector Terminal
GroundContinuity
RH E45 2
Ye s
LH E60 2
PKIA6277E