Nissan Teana J32. Instruction — part 291

REAR WINDOW DEFOGGER SWITCH

DEF-13

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

Is the inspection result normal?

YES

>> Replace A/C auto amp. Refer to

VTL-23, "Removal and Installation"

.

NO

>> GO TO 3.

3.

CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check continuity between BCM harness connector and A/C auto amp. connector.

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-78, "Removal and Installation"

.

NO

>> Repair or replace harness.

(+)

(

−

)

Voltage (V)

(Approx)

A/C auto amp.

Connector

Terminal

M50

27

Ground

JPMIA0012GB

BCM

A/C auto amp.

Continuity

Connector

Terminal

Connector

Terminal

M123

130

M50

27

Existed

BCM

Ground

Continuity

Connector

Terminal

M123

130

Not existed

DEF-14

< COMPONENT DIAGNOSIS >

REAR WINDOW DEFOGGER RELAY

REAR WINDOW DEFOGGER RELAY

Description

INFOID:0000000003857611

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

Component Function Check

INFOID:0000000003857612

1.

CHECK FUNCTION

1.

Perform Active Test (“REAR DEFOGGER”) with CONSULT-III.

2.

Touch “ON”.

3.

Check that the rear window heating wire is getting warmer.

Is the inspection result normal?

YES

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

NO

>> Refer to

DEF-14, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000003857613

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 10A fuse [No.3, located in fuse block (J/B)].

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

2.

CHECK REAR WINDOW DEFOGGER RELAY CIRCUIT 1

1.

Turn ignition switch ON.

2.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

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

NO

>> GO TO 3.

3.

CHECK REAR WINDOW DEFOGGER RELAY CIRCUIT 2

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and fuse block (J/B).

3.

Check continuity between BCM harness connector and fuse block (J/B) harness connector.

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M123

151

Ground

Rear window de-
fogger switch

ON

0

OFF

Battery voltage

BCM

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

M123

151

M2

4B

Existed

BCM

Ground

Continuity

Connector

Terminal

M123

151

Not existed

REAR WINDOW DEFOGGER RELAY

DEF-15

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

4.

CHECK REAR WINDOW DEFOGGER RELAY

1.

Disconnect rear window defogger relay,

2.

Check rear window defogger relay.

Refer to

DEF-15, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace rear window defogger relay.

5.

CHECK FUSE BLOCK (J/B)

1.

Install the rear window defogger relay.

2.

Turn ignition switch ON.

3.

Check voltage between fuse block (J/B) (fuse block side) and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace fuse block (J/B).

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to

GI-35, "Intermittent Incident"

>> INSPECTION END

Component Inspection

INFOID:0000000003857614

1.

CHECK REAR WINDOW DEFOGGER RELAY

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger relay.

3.

Check rear window defogger relay.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace rear window defogger relay.

(+)

(–)

Voltage (V)

(Approx.)

Fuse block (J/B)

Connector

Terminal

M2

4B

Ground

Battery voltage

Terminal

Condition

Continuity

Rear window

defogger relay

3

5

12 V direct current supply between termi-
nals 1 and 2

Existed

No current supply

Not existed

SEF497Y

DEF-16

< COMPONENT DIAGNOSIS >

REAR WINDOW DEFOGGER

REAR WINDOW DEFOGGER

Description

INFOID:0000000003857615

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:0000000003857616

1.

CHECK REAR WINDOW DEFOGGER

1.

Perform Active Test (“REAR DEFOGGER”) with CONSULT-III.

2.

Touch “ON”.

3.

Check that the rear window heating wire is getting warmer.

Is the inspection result normal?

YES

>> Rear window defogger is OK.

NO

>> Refer to

DEF-16, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000003857617

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 20A fuse [No.15, located in fuse block (J/B)].

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between rear window defogger harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger connector.

3.

Check continuity between rear window defogger harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness.

4.

CHECK REAR WINDOW DEFOGGER CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Disconnect condenser connector and rear window defogger connector.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Rear window defogger

Connector

Terminal

B303

1

Ground

Rear window de-
fogger switch

ON

Battery voltage

OFF

0

Rear window defogger

Ground

Continuity

Connector

Terminal

B126

2

Existed