Nissan Titan A60. Manual - part 222

REAR WINDOW DEFOGGER SWITCH

DEF-9

< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

REAR WINDOW DEFOGGER SWITCH

Description

INFOID:0000000006164633

• The rear window defogger is operated by turning the rear window defogger switch ON.

• Turns the indicator lamp in the rear window defogger switch ON when operating the rear window defogger.

Component Function Check (2 Control Dial System or Auto A/C)

INFOID:0000000006164634

1.

 CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

Check that the indicator lamp of rear window defogger illuminates with rear window defogger switch ON.
Is the inspection result normal?

YES

>> Rear window defogger switch function is OK.

NO

>> Refer to 

DEF-9, "Diagnosis Procedure (2 Control Dial System or Auto A/C)"

.

Component Function Check (3 Control Dial System Without Auto A/C)

INFOID:0000000006164635

1.

 CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

Check that the indicator lamp of rear window defogger illuminates with rear window defogger switch ON.
Is the inspection result normal?

YES

>> Rear window defogger switch function is OK.

NO

>> Refer to 

DEF-10, "Diagnosis Procedure (3 Control Dial System Without Auto A/C)"

.

Diagnosis Procedure (2 Control Dial System or Auto A/C)

INFOID:0000000006164636

Regarding Wiring Diagram information, refer to 

DEF-30, "Wiring Diagram"

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1.

 CHECK FRONT AIR CONTROL (REAR WINDOW DEFOGGER SWITCH) CIRCUIT

Operate the rear window defogger switch.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 2

2.

 CHECK HARNESS CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect BCM and front air control.

3. Check continuity between BCM connector (A) and front air con-

trol connector (B).

4. Check continuity between BCM connector (A) and ground.

Is the inspection result normal?

YES

>> Replace front air control. Refer to 

VTL-8, "Removal and Installation"

.

NO

>> Repair or replace harness.

BCM connector

Terminal

Front air control con-

nector

Terminal

Continuity 

M18 (A)

9

M49 or M180 (B)

16

Yes

BCM connector

Terminal

Ground

Continuity

M18 (A)

9

No

ALLIA0561ZZ

DEF-10

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER SWITCH

Diagnosis Procedure (3 Control Dial System Without Auto A/C)

INFOID:0000000006164637

Regarding Wiring Diagram information, refer to 

DEF-30, "Wiring Diagram"

.

1.

 CHECK FRONT AIR CONTROL (REAR WINDOW DEFOGGER SWITCH) CIRCUIT

Operate the rear window defogger switch.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 2

2.

 CHECK HARNESS CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect BCM and front air control.

3. Check continuity between BCM connector (A) and front air con-

trol connector (B).

4. Check continuity between BCM connector (A) and ground.

Is the inspection result normal?

YES

>> Replace front air control. Refer to 

VTL-8, "Removal and Installation"

.

NO

>> Repair or replace harness.

BCM connector

Terminal

Front air control con-

nector

Terminal

Continuity 

M18 (A)

9

M176 (B)

11

Yes

BCM connector

Terminal

Ground

Continuity

M18 (A)

9

No

ALLIA0564ZZ

REAR WINDOW DEFOGGER RELAY

DEF-11

< DTC/CIRCUIT DIAGNOSIS >

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REAR WINDOW DEFOGGER RELAY

Description

INFOID:0000000006164638

Power is supplied to the rear window defogger with BCM control.

Component Function Check

INFOID:0000000006164639

1.

 CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT

Check that an operation noise of rear window defogger relay (located in IPDM E/R) can be heard when turning

the rear window defogger switch ON.
Is the inspection result normal?

YES

>> Rear window defogger relay power supply circuit is OK.

NO

>> Refer to 

DEF-11, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006164640

Regarding Wiring Diagram information, refer to 

DEF-30, "Wiring Diagram"

.

1.

 CHECK FUSES 

Check if any of the following fuses in the IPDM E/R are blown.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2.

 CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between IPDM E/R connector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation of IPDM E/R"

.

3.

 CHECK INTERMITTENT INCIDENT

Check intermittent incident.

Refer to 

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Check the following.

• Battery power supply circuit

• IPDM E/R

NO

>> Repair or replace the malfunctioning parts.

COMPONENT PARTS

AMPERE

FUSE NO.

IPDM E/R

15A

46

IPDM E/R

15A

47

Terminals

Condition of rear 

window defogger 

switch

Voltage (V)

(Approx.)

(+)

(–)

IPDM E/R con-

nector

Terminal 

E124

60

Ground

ON Battery 

voltage

OFF

0

LIIA2190E

DEF-12

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER SYSTEM

REAR WINDOW DEFOGGER SYSTEM

Description

INFOID:0000000006164641

Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window

from fogging up.

Component Function Check

INFOID:0000000006164642

1.

 CHECK REAR WINDOW DEFOGGER

Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch

ON.
Is the inspection result normal?

YES

>> Rear window defogger is OK.

NO

>> Refer to 

DEF-12, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006164643

Regarding Wiring Diagram information, refer to 

DEF-30, "Wiring Diagram"

.

1.

 CHECK FUSES 

Check if any of the following fuses in IPDM E/R are blown.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2.

 CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between IPDM E/R connector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace IPDM E/R. Refer to 

PCS-28, "Removal and Installation of IPDM E/R"

.

3.

 CHECK REAR WINDOW DEFOGGER POWER CIRCUIT HARNESS CONTINUITY

COMPONENT PARTS

AMPERE

FUSE NO.

IPDM E/R

15A

46

15A

47

Terminals

Condition of rear 

window defogger 

switch

Voltage (V)

(Approx.)

(+)

(–)

IPDM E/R con-

nector

Terminal 

E124

60

Ground

ON Battery 

voltage

OFF

0

LIIA2190E