Infiniti M35/M45 Y50. Manual — part 919

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-221

C

D

E

F

G

H

I

J

L

M

A

B

LT

How to Perform Trouble Diagnoses

NKS003RR

1.

Confirm the symptom or customer complaint.

2.

Understand operation description and function description. Refer to

LT-212, "System Description"

.

3.

Perform the Preliminary Check. Refer to

LT-222, "Preliminary Check"

.

4.

Check symptom and repair or replace the cause of malfunction.

5.

Do turn signal and hazard warning lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.

6.

INSPECTION END

45

G

Flasher output
(Left)

ON

Turn signal switch

To left

OFF

Approx. 0 V

46

L

Flasher output
(Right)

ON

Turn signal switch

To right

OFF

Approx. 0 V

52

B

Ground

ON

—

Approx. 0 V

55

W

Battery power
supply

OFF

—

Battery voltage

Terminal

No.

Wire

color

Signal name

Measuring condition

Reference value

Ignition

switch

Operation or condition

SKIA3009J

SKIA3009J

LT-222

TURN SIGNAL AND HAZARD WARNING LAMPS

Preliminary Check

NKS003RS

CHECK POWER SUPPLY AND GROUND CIRCUIT

1.

CHECK FUSES AND FUSIBLE LINK

Check for blown fuses and fusible link.

Refer to

LT-216, "Wiring Diagram — TURN —"

.

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"

.

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

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

Unit

Power source

Fuse and fusible link No.

BCM

Battery

F

21

Ignition switch ON or START position

1

Combination meter

Battery

21

Ignition switch ON or START position

14

Unified meter and A/C amp.

Battery

19

Ignition switch ON or START position

12

Terminal

Ignition switch position

(+)

(-)

OFF

ON

BCM

connector

Terminal

M1

38

Ground

Approx. 0 V

Battery voltage

M2

42

Battery voltage

Battery voltage

55

Battery voltage

Battery voltage

PKIB5199E

BCM connector

Terminal

Ground

Continuity

M2

52

Yes

SKIB5125E

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-223

C

D

E

F

G

H

I

J

L

M

A

B

LT

CONSULT-II Functions (BCM)

NKS003RT

CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.

CONSULT-II BASIC OPERATION

Refer to

GI-38, "CONSULT-II Start Procedure"

.

DATA MONITOR
Operation Procedure

1.

Touch “FLASHER” on “SELECT TEST ITEM” screen.

2.

Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.

3.

Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on the “SELECT MONITOR ITEM” screen.

4.

When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is
selected, all the items will be monitored.

5.

Touch “START”.

6.

Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.

Display Item List

ACTIVE TEST
Operation Procedure

1.

Touch “FLASHER” on “SELECT TEST ITEM” screen.

2.

Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.

3.

Touch item to be tested and check operation of the selected item.

4.

During the operation check, touching “BACK” deactivates the operation.

Display Item List

BCM diagnosis part

Diagnosis mode

Description

FLASHER

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

Operation of electrical loads can be checked by sending driving signal to them.

ALL SIGNALS

Monitors all the signals.

SELECTION FROM MENU

Selects items and monitor them.

Monitor item

Contents

IGN ON SW

“ON/OFF”

Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch signal.

HAZARD SW

“ON/OFF”

Displays “hazard ON (ON)/hazard OFF (OFF)” status, determined from hazard switch signal.

TURN SIGNAL R

“ON/OFF”

Displays “turn right (ON)/other (OFF)” status, determined from lighting switch signal.

TURN SIGNAL L

“ON/OFF”

Displays “turn left (ON)/other (OFF)” status, determined from lighting switch signal.

Test item

Description

FLASHER (RIGHT)

Turn signal lamp (right) can be operated by any ON-OFF operations.

FLASHER (LEFT)

Turn signal lamp (left) can be operated by any ON-OFF operations.

LT-224

TURN SIGNAL AND HAZARD WARNING LAMPS

Turn Signal Lamp Does Not Operate

NKS003RU

1.

CHECK BULB

Check bulb standard of each turn signal lamp is correct.
OK or NG

OK

>> GO TO 2.

NG

>> Replace turn signal lamp bulb.

2.

CHECK COMBINATION SWITCH INPUT SIGNAL

With CONSULT-II

1.

Select “BCM” on CONSULT-II. Select “FLASHER” on “SELECT
TEST ITEM” screen.

2.

Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure “TURN SIGNAL R” and “TURN SIGNAL L” turns ON-
OFF linked with operation of lighting switch.

Without CONSULT-II

Refer to

LT-239, "Combination Switch Inspection"

.

OK or NG

OK

>> GO TO 3.

NG

>> Check combination switch (lighting switch). Refer to

LT-239, "Combination Switch Inspection"

.

3.

ACTIVE TEST

With CONSULT-II

1.

Select “BCM” on CONSULT-II. Select “FLASHER” on “SELECT
TEST ITEM” screen.

2.

Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
Select “FLASHER” on “SELECT TEST ITEM” screen.

3.

Make sure operation of turn signal lamps.

Without CONSULT-II

GO TO 4.

OK or NG

OK

>> Replace BCM. Refer to

BCS-15, "Removal and Installa-

tion of BCM"

.

NG

>> GO TO 4.

When lighting switch is
TURN RH position

: TURN SIGNAL R ON

When lighting switch is
TURN LH position

: TURN SIGNAL L ON

PKIA7600E

Turn signal lamp should operate.

SKIA6190E