Infiniti FX35, FX50 (S51). Manual - part 1215

INL-60

< DTC/CIRCUIT DIAGNOSIS >

TAIL LAMP SIGNAL CIRCUIT

TAIL LAMP SIGNAL CIRCUIT

Description

INFOID:0000000005245601

Total illumination control unit inputs tail lamp signal from IPDM E/R.

Component Function Check

INFOID:0000000005245602

NOTE:
Check the tail lamp circuit if the tail lamp is not turned ON. Refer to 

EXL-88, "Component Function Check"

.

1.

CHECK TAIL LAMP SIGNAL INPUT WITH CONSULT-III

CONSULT-III DATA MONITOR

1.

Turn ignition switch ON.

2.

Select “TAIL LAMP SIGNAL” of TOTAL ILLUM C/U data monitor item.

3.

While operating the lighting switch, check the monitor status.

Is the measurement value normal?

YES

>> Tail lamp signal circuit is normal.

NO

>> Refer to 

INL-60, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005245603

1.

CHECK TAIL LAMP INPUT SIGNAL

CONSULT-III ACTIVE TEST

1.

Turn ignition switch ON.

2.

Select “EXTERNAL LAMPS” of IPDM E/R active test item.

3.

While operating the test item, check the voltage between the total illumination control unit and ground.

Is the measurement value normal?

YES

>> Replace the total illumination control unit.

NO

>> GO TO 2.

2.

CHECK TAIL LAMP SIGNAL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect the IPDM E/R harness connector and total illumination harness connector.

3.

Check continuity between the IPDM E/R harness connector and total illumination harness connector.

Does continuity exist?

Monitor item

Condition

Monitor status

Lighting switch

TAIL LAMP SIGNAL

OFF

Off

1ST

On

Terminals

Test item

Voltage

(Approx.)

(+)

(–)

Total illumination control 

unit

Ground

EXTERNAL 

LAMPS

Connector

Terminal

M129

4

TAIL

Battery
voltage

Off

0 V

IPDM E/R

Total illumination control unit

Continuity

Connector

Terminal

Connector

Terminal

E5

7

M129

4

Existed

TAIL LAMP SIGNAL CIRCUIT

INL-61

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

INL

N

O

P

YES

>> GO TO 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK TAIL LAMP SIGNAL CIRCUIT FOR SHORT

Check continuity between the total illumination control unit and ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

>> Replace the IPDM E/R.

Total illumination control unit

Ground

Continuity

Connector

Terminal

M129

4

Not existed

INL-62

< DTC/CIRCUIT DIAGNOSIS >

ILLUMINATION CONTROL SIGNAL CIRCUIT

ILLUMINATION CONTROL SIGNAL CIRCUIT

Component Function Check

INFOID:0000000005245604

1.

CHECK ILLUMINATION CONTROL SIGNAL INPUT BY CONSULT-III

CONSULT-III DATA MONITOR

1.

Turn ignition switch ON.

2.

Switch the lighting switch 1ST.

3.

Select “ILLUM CONT SIGNAL” of TOTAL ILLUM C/U data monitor item.

4.

While operating the illumination control switch, check the monitor status.

Is the item status normal?

YES

>> Illumination control signal circuit is normal.

NO

>> Refer to 

INL-62, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005245605

1.

CHECK ILLUMINATION CONTROL SIGNAL INPUT

1.

Switch the lighting switch 1ST.

2.

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

Is the measurement value normal?

YES

>> Replace the total illumination control unit.

NO

>> GO TO 2.

2.

CHECK ILLUMINATION CONTROL SIGNAL CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect the total illumination control unit connector and the combination meter connector.

3.

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

Monitor item

Condition

Monitor status

ILLUM CONT 
SIGNAL

Brightness level

Maximum

100 %

Midway

50 %

Minimum

0 %

Terminals

Condition

Voltage (Approx.)

(+)

(

−

)

Total illumination control 

unit

Ground

Brightness level

Connector

Terminal

M129

24

Maximum

0 V

Midway

Minimum

8 V

JPLIA1199ZZ

ILLUMINATION CONTROL SIGNAL CIRCUIT

INL-63

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

INL

N

O

P

Does continuity exist?

YES

>> GO TO 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK ILLUMINATION CONTROL SIGNAL SHORT CIRCUIT

1.

Disconnect the selector lever position indicator connector.

2.

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

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

>> Replace the total illumination control unit.

Total illumination control unit

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

M129

24

M53

34

Existed

Total illumination control unit

Ground

Continuity

Connector

Terminal

M129

24

Not existed