Infiniti Q45. Manual - part 307

LANE DEPARTURE WARNING SYSTEM

DI-95

C

D

E

F

G

H

I

J

L

M

A

B

DI

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.

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-99, "LDW SWITCH"

 .

OK or NG

OK

>> Replace LDW camera unit.

NG

>> Replace LDW switch.

Terminals

Condition

Voltage 

(Approx.)

(+)

(–)

LDW camera unit 

connector

Terminal

LDW switch:

R26

9

Ground

Push

0 V

Release

5 V

PKIC0252E

LDW switch 

connector

Terminal 

Ground

Continuity

M222

2

Yes

PKIC4886E

A

B

Continuity

Connector

Terminal

Connector

Terminal

R26

9

 M222

1

Yes

A

Ground

Continuity

Connector

Terminal

R26

9

No

PKIC4887E

DI-96

LANE DEPARTURE WARNING SYSTEM

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.

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.

“SYSTEM ON LAMP DRIVE”

Touch “ON”

: LDW system ON indicator illuminates.

Touch “OFF”

: LDW system ON indicator turns OFF.

SKIB1788E

Terminals

Voltage 

(Approx.)

(+)

(–)

LDW switch connector

Terminal

M222

5

Ground

Battery voltage

PKIC4888E

A

B

Continuity

Connector

Terminal

Connector

Terminal

R26

4

 M222

6

Yes

A

Ground

Continuity

Connector

Terminal

R26

4 No

PKIC4889E

LANE DEPARTURE WARNING SYSTEM

DI-97

C

D

E

F

G

H

I

J

L

M

A

B

DI

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.

LDW Indicator Lamp Circuit Inspection

NKS002CB

1. 

CHECK OPERATION OF LDW INDICATOR LAMP

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

OK or NG

OK

>> LDW indicator is OK. Return to 

DI-91, "SYMPTOM

CHART"

 .

NG

>> GO TO 2.

2. 

CHECK LDW INDICATOR LAMP

Activate self-diagnosis mode of combination meter. Refer to

DI-16, "Self-Diagnosis Mode of Combination

Meter"

 .

Does LDW indicator lamp illuminate?

YES

>> GO TO 3.

NO

>> Replace combination meter.

LDW switch

connector

Terminal

Ground

Condition

M222

6

LDW system ON indicator 

should illuminate.

PKIC4890E

“INDICATOR LAMP DRIVE”

Touch “ON”

: LDW indicator lamp illuminates.

Touch “OFF”

: LDW indicator lamp OFF.

PKIB4692E

DI-98

LANE DEPARTURE WARNING SYSTEM

3. 

CHECK LDW INDICATOR LAMP SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect LDW camera unit connector and combination meter
connector.

3.

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

4.

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

OK or NG

OK

>> Replace LDW camera unit.

NG

>> Repair harness or connector.

Turn Signal Input Inspection

NKS002CC

1. 

CHECK TURN SIGNAL INPUT (LDW CAMERA UNIT)

Check turn signal input “TURN SIGNAL” in “DATA MONITOR” mode
with CONSULT-II.

NOTE:
It dose not display when hazard switch turns ON.

OK or NG

OK

>> Turn signal input is OK. Return to 

DI-91, "SYMPTOM

CHART"

 .

NG

>> GO TO 2.

2. 

CHECK TURN SIGNAL INPUT (ICC UNIT)

1.

Select “ICC” on “SELECT SYSTEM” screen. Refer to 

ACS-33, "CONSULT-II Function (ICC)"

 .

2.

Check turn signal input “TURN SIGNAL” in “DATA MONITOR”
mode.

OK or NG

OK

>> Replace LDW camera unit.

NG

>> GO TO 3.

A

B

Continuity

Connector

Terminal

Connector

Terminal

R26

8

 M42

23

Yes

A

Ground

Continuity

Connector

Terminal

R26

8 No

PKIC4891E

“TURN SIGNAL”

When lighting switch is in TURN RH position

: RH

When lighting switch is in TURN LH position

: LH

SKIB3125E

“TURN SIGNAL”

When lighting switch is in TURN RH position

: RH

When lighting switch is in TURN LH position

: LH

When hazard switch is turned ON

: RH/LH 

SKIB3125E