Infiniti FX35, FX50 (S51). Manual - part 1216

INL-64

< DTC/CIRCUIT DIAGNOSIS >

MAP LAMP SWITCH CIRCUIT

MAP LAMP SWITCH CIRCUIT

Component Function Check

INFOID:0000000005245606

1.

CHECK MAP LAMP SWITCH SIGNAL BY CONSULT-III

CONSULT-III DATA MONITOR

1.

Turn ignition switch ON.

2.

Select “MAP LAMP SW” of TOTAL ILLUM C/U data monitor item.

3.

While operating the map lamp main switch, check the monitor status.

Is the item status normal?

YES

>> Map lamp main switch circuit is normal.

NO

>> Refer to 

INL-64, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005245607

1.

CHECK MAP LAMP SWITCH SIGNAL INPUT

1.

Turn ignition switch ON.

2.

While operating the map lamp main switch, check the voltage between the total illumination control unit
harness connector and ground.

Is the measurement value normal?

YES

>> Replace the total illumination control unit.

NO

>> GO TO 2.

2.

CHECK MAP LAMP MAIN SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect total illumination control unit connector.

3.

While operating the map lamp main switch, check continuity between the total illumination control unit
harness connector and ground.

Monitor item

Condition

Monitor status

MAP LAMP SW

Map lamp main switch

DOOR

Door

ON

All On

OFF

Off

Terminals

Condition

Voltage 

(Approx.)

(+)

(

−

)

Total illumination control unit

Ground

Map lamp main 

switch

Connector

Terminal

M129

26

DOOR

0 V

OFF or ALL ON

5 V

27

ALL ON

0 V

OFF or DOOR

5 V

MAP LAMP SWITCH CIRCUIT

INL-65

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

INL

N

O

P

Is the measurement value normal?

YES

>> Replace the total illumination control unit.

NO

>> GO TO 3.

3.

CHECK MAP LAMP SWITCH SIGNAL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect the map lamp connector.

3.

Check continuity between the total illumination control unit harness connector and map lamp harness con-
nector.

Does continuity exist?

YES

>> GO TO 4.

NO

>> Repair the harnesses or connectors.

4.

CHECK MAP LAMP SWITCH SIGNAL CIRCUIT FOR SHORT

Check continuity between the total illumination control unit harness connector and ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

>> GO TO 5.

5.

CHECK MAP LAMP MAIN SWITCH GROUND CIRCUIT FOR OPEN

Check continuity between the map lamp harness connector and ground.

Does continuity exist?

YES

>> Replace the map lamp assembly (map lamp main switch).

NO

>> Repair the harness or connector.

Total illumination control unit

Ground

Condition

Continuity

Connector

Terminal

Map lamp 

main switch

M129

26

DOOR

Existed

ALL ON

Not existed

OFF

Not existed

27

DOOR

Not existed

ALL ON

Existed

OFF

Not existed

Total illumination control unit

Map lamp

Continuity

Connector

Terminal

Connector

Terminal

M129

26

R15

1

Existed

27

2

Total illumination control unit

Ground

Continuity

Connector

Terminal

M129

26

Not existed

27

Map lamp

Ground

Continuity

Connector

Terminal

R15

3

Existed

INL-66

< DTC/CIRCUIT DIAGNOSIS >

DOOR SWITCH CIRCUIT

DOOR SWITCH CIRCUIT

Component Function Check

INFOID:0000000005245608

1.

CHECK EACH DOOR SWITCH SIGNAL BY CONSULT-III

CONSULT-III DATA MONITOR

1.

Turn ignition switch ON.

2.

Select “DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RR” and “DOOR SW-RL” of TOTAL ILLUM C/U
data monitor item.

3.

While operating each door switch, check the monitor status.

Is the item status normal?

YES

>> Each door switch circuit is normal.

NO

>> Refer to 

INL-66, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005245609

1.

CHECK EACH DOOR SWITCH INPUT SIGNAL

While operating each door switch, check the voltage between the total illumination control unit harness con-
nector and the ground.

Front door (driver side)

Monitor item

Condition

Monitor status

DOOR-SW-DR

Front door
(driver side)

Open

On

Close

Off

DOOR-SW-AS

Front door
(passenger 
side)

Open

On

Close

Off

DOOR-SW-RR

Rear door
(RH)

Open

On

Close

Off

DOOR-SW-RL

Rear door
(LH)

Open

On

Close

Off

Terminals

Condition

Voltage (Approx.)

(+)

(

−

)

Total illumination control 

unit

Ground

Door

Connector

Terminal

M129

29

Open

0 V

Close

8.5 - 9.0 V

JPMIA0594GB

DOOR SWITCH CIRCUIT

INL-67

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

INL

N

O

P

Front door (passenger side)

Rear door (LH)

Rear door (RH)

Is the measurement value normal?

Fixed at 8.5 - 9.5 V>>Replace the total illumination control unit. 
Fixed at 0 V>>GO TO 2.

2.

CHECK TOTAL ILLUMINATION CONTROL UNIT (INTERNAL SHORT)

1.

Turn ignition switch OFF.

Terminals

Condition

Voltage (Approx.)

(+)

(

−

)

Total illumination control 

unit

Ground

Door

Connector

Terminal

M129

8

Open

0 V

Close

8.5 - 9.0 V

Terminals

Condition

Voltage (Approx.)

(+)

(

−

)

Total illumination control 

unit

Ground

Door

Connector

Terminal

M129

9

Open

0 V

Close

8.5 - 9.0 V

Terminals

Condition

Voltage (Approx.)

(+)

(

−

)

Total illumination control 

unit

Ground

Door

Connector

Terminal

M129

25

Open

0 V

Close

8.5 - 9.0 V

JPMIA0594GB

JPMIA0594GB

JPMIA0594GB