Nissan Frontier. Manual - part 231

DEF-12

< DTC/CIRCUIT DIAGNOSIS >

REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT

1. Disconnect IPDM E/R.

2. Check continuity between rear window defogger harness con-

nector B165 (A) terminal 1 and IPDM E/R harness connector

E124 (B) terminal 60.

3. Check continuity between rear window defogger harness con-

nector B165 (A) terminal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace or repair harness.

4.

 CHECK FILAMENT

Check filament.

Refer to 

DEF-12, "Component Inspection"

.

Is the inspection result normal?

YES

>> Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Repair filament. Refer to 

DEF-41, "Filament Repair"

.

5.

 CHECK INTERMITTENT INCIDENT

Check intermittent incident.

Refer to 

GI-42, "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 Inspection

INFOID:0000000009479599

1.

 CHECK FILAMENT

Check the filament for damage or open circuits.

Refer to 

DEF-41, "Filament Check"

.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair filament. Refer to 

DEF-41, "Filament Repair"

.

Rear window defog-

ger connector

Terminal

IPDM E/R 
connector

Terminal

Continuity 

B165 (A)

1

E124 (B)

60

Yes

Rear window defog-

ger connector

Terminal

Ground

Continuity 

B165 (A)

1

No

LIIA2644E

REAR WINDOW DEFOGGER FEEDBACK SIGNAL

DEF-13

< DTC/CIRCUIT DIAGNOSIS >

C

D

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F

G

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A

B

DEF

N

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REAR WINDOW DEFOGGER FEEDBACK SIGNAL

Description

INFOID:0000000009479600

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

Component Function Check

INFOID:0000000009479601

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 feedback signal function is OK.

NO

>> Refer to 

DEF-13, "Diagnosis Procedure (Manual A/C)"

.

Diagnosis Procedure (Manual A/C)

INFOID:0000000009479602

Regarding Wiring Diagram information, refer to 

DEF-27, "Wiring Diagram"

.

1.

 CHECK REAR WINDOW DEFOGGER SWITCH INDICATOR CIRCUIT

Check voltage between front air control harness connector and ground.

Is the inspection result normal?

YES

>> Replace front air control. Refer to 

VTL-7, "Removal and Installation"

.

NO

>> Repair or replace harness as necessary.

Terminals

Condition of rear window 

defogger switch

Voltage (V)

(Approx.)

(+)

(–)

Front air control connec-

tor

Terminal 

M49

(with manual A/C type 2)

25

Ground

ON Battery 

voltage

OFF

0

DEF-14

< DTC/CIRCUIT DIAGNOSIS >

DOOR MIRROR DEFOGGER LH

DOOR MIRROR DEFOGGER LH

Description

INFOID:0000000010246676

Heats the heating wire with the power supply from the heated mirrorr relay to prevent the door mirror from fog-

ging up.

Component Function Check

INFOID:0000000010246677

1.

 CHECK DOOR MIRROR DEFOGGER LH

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

ON.
Is the inspection result normal?

YES

>> Door mirror defogger is OK.

NO

>> Refer to 

DEF-14, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010246678

Regarding Wiring Diagram information, refer to 

DEF-27, "Wiring Diagram"

.

1.

 CHECK POWER SUPPLY

Check if the following fuse in the IPDM E/R is 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 DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT

Check voltage between IPDM E/R harness connector E120 terminal

23 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 DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT

COMPONENT PARTS

AMPERE

FUSE NO.

IPDM E/R

15A

43

Connector

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(-)

E120

23

Ground

Rear window defogger 
switch ON

 Battery voltage

Rear window defogger 
switch OFF

0

LIIA2049E

DOOR MIRROR DEFOGGER LH

DEF-15

< DTC/CIRCUIT DIAGNOSIS >

C

D

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F

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DEF

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1. Turn ignition switch OFF.

2. Disconnect door mirror LH.

3. Turn ignition switch ON.

4. Check voltage between door mirror LH harness connector D4

terminal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

 CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT

Check continuity between door mirror LH harness connector D4 ter-

minal 6 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

 CHECK DOOR MIRROR DEFOGGER LH

Check door mirror defogger LH.

Refer to 

DEF-15, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Replace door mirror. Refer to 

MIR-23, "Door Mirror Assembly"

.

Component Inspection

INFOID:0000000010246679

1.

 CHECK DOOR MIRROR DEFOGGER 

Check continuity between door mirror LH terminals 1 and 6.

Is the inspection result normal?

YES

>> Check the condition of the harness and the connector.

NO

>> Replace malfunctioning door mirror LH. Refer to 

MIR-

23, "Door Mirror Assembly"

.

Connector

Terminal

Condition

Voltage (V)

(Approx.)

(+)

(-)

D4

1

Ground

Rear window defogger 
switch ON

 Battery voltage

Rear window defogger 
switch OFF

0

LIIA2050E

6 - Ground

: Continuity should exist.

LIIA2037E

1 - 6

: Continuity should exist.

AWLIA1760ZZ