Infiniti FX35 / FX45. Manual - part 789

AUTO LIGHT SYSTEM

LT-51

< SERVICE INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

LT

N

O

P

TKWM4298E

LT-52

< SERVICE INFORMATION >

AUTO LIGHT SYSTEM

Terminal and Reference Value for BCM

INFOID:0000000001328313

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-III. Refer to 

LT-

103, "CONSULT-III Functions (BCM)"

.

TKWM4299E

AUTO LIGHT SYSTEM

LT-53

< SERVICE INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

LT

N

O

P

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

4

Pu/W

Combination switch in-
put 3

ON

Lighting, turn, wiper 
switch
(Wiper intermittent 
dial position 4)

OFF

Approx. 0 V

Lighting switch 
AUTO

Approx. 1.0 V

11

LG

Ignition switch (ACC)

ACC

—

Battery voltage

12

P/B

Front door switch 
(Passenger side) signal

OFF

Front door switch 
(Passenger side) 

ON (open)

Approx. 0 V

OFF (closed)

Approx. 7.5 - 8.0 V

13

P/L

Rear door switch RH 
signal

OFF

Rear door switch RH
(Personal lamp RH 
ON or OFF position) 

ON (open)

Approx. 0 V

OFF (closed)

Battery voltage

14

P

Optical sensor signal

ON

When optical sensor is illuminated

3.1 V or more

Note

When optical sensor is not illuminated

0.6 V or less

17

Y/G

Optical sensor power 
supply

ON

—

Approx. 5 V

18

B

Sensor ground

ON

—

Approx. 0 V

33

G

Combination switch 
output 4

ON

Lighting, turn, wiper 
switch
(Wiper intermittent 
dial position 4)

OFF

Approx. 7.2 V

Lighting switch 
AUTO

Approx. 1.2 V

38

W/L

Ignition switch (ON) 

ON

—

Battery voltage

39

L

CAN 

−

 

H

—

—

—

40

P

CAN 

−

 

L

—

—

—

42

L/R

Battery power supply

OFF

—

Battery voltage

PKIB4959J

SKIB3419J

PKIB4960J

PKIB4958J

LT-54

< SERVICE INFORMATION >

AUTO LIGHT SYSTEM

NOTE:

Optical sensor must be securely subjected to work lamp light. If optical sensor is insufficiently illuminated, the measured value may not
satisfy standard.

Terminal and Reference Value for IPDM E/R

INFOID:0000000001328314

How to Proceed with Trouble Diagnosis

INFOID:0000000001328315

1.

Confirm the symptom or customer complaint.

2.

Understand operation description and function description. Refer to 

LT-47, "System Description"

.

3.

Perform Preliminary Check. Refer to 

LT-55, "Preliminary Check"

.

4.

Check symptom and repair or replace the cause of malfunction. Refer to 

LT-58, "Symptom Chart"

.

49

B

Ground

ON

—

Approx. 0 V

52

B

Ground

ON

—

Approx. 0 V

55

G

Battery power supply

OFF

—

Battery voltage

58

L

Back door switch signal

OFF

Back door closure 
motor (door switch)

ON (open)

Approx. 0 V

OFF (closed)

Battery voltage

62

W

Front door switch 
(Driver side) signal

OFF

Front door switch 
(Driver side) 

ON (open)

Approx. 0 V

OFF (closed)

Approx. 7.0 - 7.5 V

63

P

Rear door switch LH 
signal

OFF

Rear door switch LH 

ON (open)

Approx. 0 V

OFF (closed)

Battery voltage

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

PKIB4960J

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

20 

LG

Headlamp low (RH)

ON

Lighting switch 2ND 
position

OFF

Approx. 0 V

ON

Battery voltage

22

R

Parking, license plate, side 
marker and tail lamps

ON

Lighting switch 1ST po-
sition

OFF

Approx. 0 V

ON

Battery voltage

27

BR

Headlamp high (RH)

ON

Lighting switch HIGH 
or PASS position

OFF

Approx. 0 V

ON

Battery voltage

28 

SB

Headlamp high (LH)

ON

Lighting switch HIGH 
or PASS position

OFF

Approx. 0 V

ON

Battery voltage

30 

GY

Headlamp low (LH)

ON

Lighting switch 2ND 
position

OFF

Approx. 0 V

ON

Battery voltage

38

B

Ground

ON

—

Approx. 0 V

48

L

CAN 

−

 

H

—

—

—

49

R

CAN 

−

 

L

—

—

—

60

B

Ground

ON

—

Approx. 0 V