Infiniti M35/M45 Y50. Manual - part 378

LANE DEPARTURE WARNING SYSTEM

DI-95

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DTC [U1000] CAN COMM CIRCUIT

NKS003VT

1. 

CHECK CAN COMMUNICATION   

1.

Select “SELF-DIAG RESULTS” mode for “LDW” with CONSULT-II.

2.

Print out CONSULT-II screen.

>> Go to “LAN SYSTEM”. Refer to 

LAN-44, "CAN Diagnostic Support Monitor"

 .

DTC [U1010] CONTROL UNIT (CAN)

NKS003VU

Replace LDW camera unit, when “[U1010] CONTROL UNIT (CAN)” is displayed on self-diagnosis display.

LDW Chime Circuit Inspection

NKS003VV

1. 

CHECK OPERATION OF LDW CHIME

Check LDW chime operation “BUZZER DRIVE” in “ACTIVE TEST”
mode with CONSULT-II.

OK or NG

OK

>> LDW chime is OK. Return to 

DI-93, "SYMPTOM

CHART"

 .

NG

>> GO TO 2.

2. 

CHECK LDW CHIME POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect LDW chime connector.

3.

Turn ignition switch ON.

4.

Check voltage between LDW chime harness connector and
ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness between fuse and LDW chime.

3. 

 CHECK LDW CHIME GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between LDW chime harness connector and
ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

“BUZZER DRIVE”

Touch “ON”

: LDW chime is activated.

Touch “OFF”

: LDW chime is not activated.

SKIB1787E

Terminals

Voltage (Approx.)

(+)

(–)

LDW chime connector

Terminal

M58

1

Ground

Battery voltage

PKIC0248E

LDW chime connector

Terminal

Ground

Continuity

M58

3

Yes

PKIC0249E

DI-96

LANE DEPARTURE WARNING SYSTEM

4. 

CHECK LDW CHIME SIGNAL CIRCUIT

1.

Disconnect LDW camera unit connector.

2.

Check continuity between LDW camera unit harness connector
(A) and LDW chime harness connector (B).

3.

Check continuity between LDW camera unit harness connector
(A) and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

5. 

CHECK LDW CHIME

1.

Connect LDW chime connector.

2.

Turn ignition switch ON.

3.

Apply ground to LDW chime terminal.

4.

Check condition of the LDW chime.

OK or NG

OK

>> Replace LDW camera unit.

NG

>> Replace LDW chime.

LDW Switch Circuit Inspection

NKS003VW

1. 

CHECK OPERATION OF LDW SYSTEM ON INDICATOR

1.

Turn ignition switch ON.

2.

Check LDW system ON indicator operation when LDW switch is ON/OFF.

OK or NG

OK

>> LDW system ON indicator is OK. Return to 

DI-93, "SYMPTOM CHART"

 .

NG

>> GO TO 2.

2. 

CHECK LDW SWITCH SIGNAL INPUT

Check voltage between LDW camera unit harness connector and
ground.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 3.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M182

3  

M58

2  Yes

A

Ground

Continuity

Connector

Terminal

M182

3

No

PKIC0250E

LDW chime connector

Terminal

Ground

Condition

M58

2

LDW chime should operate.

PKIC0251E

Terminals

Condition

Voltage (Approx.)

(+)

(–)

LDW camera 

unit connector

Terminal

LDW switch:

M182

9

Ground

Push

0 V

Release

5 V

PKIC0252E

LANE DEPARTURE WARNING SYSTEM

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3. 

CHECK LDW SWITCH GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect LDW switch connector.

3.

Check continuity between LDW switch connector and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

4. 

CHECK LDW SWITCH SIGNAL INPUT CIRCUIT

1.

Disconnect LDW camera unit connector.

2.

Check continuity between LDW camera unit harness connector
(A) and LDW switch harness connector (B).

3.

Check continuity between LDW camera unit harness connector
(A) and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

5. 

CHECK LDW SWITCH

Check LDW switch. Refer to 

DI-100, "LDW SWITCH"

 .

OK or NG

OK

>> Replace LDW camera unit.

NG

>> Replace LDW switch.

6. 

CHECK OPERATION OF LDW SYSTEM ON INDICATOR

Check LDW system ON indicator operation “SYSTEM ON LAMP
DRIVE” in “ACTIVE TEST” mode with CONSULT-II.

NOTE:
Perform “SYSTEM ON LAMP DRIVE” when LDW system ON indica-
tor turns OFF.

OK or NG

OK

>> Replace LDW camera unit.

NG

>> GO TO 7.

LDW switch connector

Terminal 

Ground

Continuity

M49

6

Yes

PKIC0253E

A

B

Continuity

Connector

Terminal

Connector

Terminal

M182

9

 

M49

7

Yes

A

Ground

Continuity

Connector

Terminal

M182

9

No

PKIC0254E

“SYSTEM ON LAMP DRIVE”

Touch “ON”

: LDW system ON indicator illuminates.

Touch “OFF”

: LDW system ON indicator turns OFF.

SKIB1788E

DI-98

LANE DEPARTURE WARNING SYSTEM

7. 

CHECK LDW SYSTEM ON INDICATOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect LDW switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between LDW switch harness connector and
ground.

OK or NG

OK

>> GO TO 8.

NG

>> Check harness between fuse and LDW switch.

8. 

CHECK LDW SYSTEM ON INDICATOR SIGNAL CIRCUIT

1.

Disconnect LDW camera unit connector.

2.

Check continuity between LDW camera unit harness connector
(A) and LDW switch harness connector (B).

3.

Check continuity between LDW camera unit harness connector
(A) and ground.

OK or NG

OK

>> GO TO 9.

NG

>> Repair harness or connector.

9. 

CHECK LDW SYSTEM ON INDICATOR

1.

Connect LDW switch connector.

2.

Turn ignition switch ON.

3.

Apply ground to LDW switch terminal.

4.

Check condition of the LDW system ON indicator.

OK or NG

OK

>> Replace LDW camera unit.

NG

>> Replace LDW switch.

Terminals

Voltage (Approx.)

(+)

(–)

LDW chime connector

Terminal

M49

3

Ground

Battery voltage

PKIC0255E

A

B

Continuity

Connector

Terminal

Connector

Terminal

M182

4

 

M49

2

Yes

A

Ground

Continuity

Connector

Terminal

M182

4 No

PKIC0256E

LDW switch

connector

Terminal

Ground

Condition

M49

2 

LDW system ON indicator 

should illuminate.

PKIC0257E