Infiniti G37 Coupe. Manual - part 348

DEF-16

< COMPONENT DIAGNOSIS >

DOOR MIRROR DEFOGGER

DOOR MIRROR DEFOGGER

Description

INFOID:0000000001722040

Power is supplied to the door mirror defogger with BCM control.

Component Function Check

INFOID:0000000001722041

1.

CHECK DOOR MIRROR DEFOGGER

1.

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

2.

Touch “ON”.

3.

Check that both side door mirror glass is getting warmer.

Is the inspection result normal?

YES

>> Door mirror defogger is OK.

NO

>> Refer to 

DEF-16, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000001722043

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check the following.

-

10A fuse (No.13, 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 FUSE BLOCK (J/B)

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace fuse block (J/B).

Fuse block (J/B)

Ground

Condition of rear window 

defogger switch

Voltage (V)

(Approx.)

Connector

Terminal

M3

9C

Ground

ON

Battery voltage

OFF

0

10C

ON

Battery voltage

OFF

0

DRIVER SIDE DOOR MIRROR DEFOGGER

DEF-17

< COMPONENT DIAGNOSIS >

C

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DRIVER SIDE DOOR MIRROR DEFOGGER

Description

INFOID:0000000001696775

Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror
from fogging up.

Component Function Check

INFOID:0000000001696776

1.

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER

1.

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

2.

Touch “ON”.

3.

Check that the driver side door mirror glass is getting warmer.

Is the inspection result normal?

YES

>> Driver side door mirror defogger is OK.

NO

>> Refer to 

DEF-17, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000001696777

1.

CHECK POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect door mirror (driver side) connector. 

3.

Turn ignition switch ON.

4.

Check voltage between door mirror (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK FUSE BLOCK (J/B) OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect fuse block (J/B) connector. 

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace fuse block (J/B).

3.

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between fuse block (J/B) harness connector and door mirror (driver side) harness con-
nector.

Door mirror (driver side)

Ground

Condition of rear win-

dow defogger switch

Voltage (V)

(Approx.)

 Connector

Terminal 

D3

4

Ground

ON

Battery voltage

OFF

0

Fuse block (J/B)

Ground

Condition of rear win-

dow defogger switch

Voltage (V)

(Approx.)

 Connector

Terminal 

M3

10C

Ground

ON

Battery voltage

OFF

0

Fuse block (J/B)

Door mirror (driver side)

Continuity

 Connector

Terminal 

Connector

Terminal

M3

10C

D3

4

Existed

DEF-18

< COMPONENT DIAGNOSIS >

DRIVER SIDE DOOR MIRROR DEFOGGER

3.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness between fuse block (J/B) and door mirror (driver side).

4.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between door mirror (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness between door mirror (driver side) and ground.

5.

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER

Check driver side door mirror defogger.
Refer to 

DEF-18, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace door mirror (driver side). Refer to 

MIR-50, "DOOR MIRROR ASSEMBLY : Removal and

Installation"

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident.
Refer to 

GI-38, "Intermittent Incident"

Is the inspection result normal?

>> INSPECTION END.

Component Inspection

INFOID:0000000001696778

1.

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER 

1.

Turn ignition switch OFF.

2.

Disconnect door mirror (driver side) connector.

3.

Check continuity between door mirror terminals.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Replace door mirror glass (driver side). Refer to 

MIR-50, "DOOR MIRROR ASSEMBLY : Removal

and Installation"

Fuse block (J/B)

Ground

Continuity 

Connector

Terminal

M3

10C

Ground

Not existed 

Door mirror (driver side)

Ground

Continuity 

Connector

Terminal

D3

8

Ground

Existed

Door mirror (driver side)

Continuity 

 Connector

Terminal 

D3

4

8

Existed

PASSENGER SIDE DOOR MIRROR DEFOGGER

DEF-19

< COMPONENT DIAGNOSIS >

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PASSENGER SIDE DOOR MIRROR DEFOGGER

Description

INFOID:0000000001696779

Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror
from fogging up.

Component Function Check

INFOID:0000000001696780

1.

CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER

1.

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

2.

Touch “ON”.

3.

Check that the passenger side door mirror glass is getting warmer.

Is the inspection result normal?

YES

>> Passenger side door mirror defogger is OK.

NO

>> Refer to 

DEF-19, "Diagnosis Procedure"

Diagnosis Procedure

INFOID:0000000001696781

1.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect door mirror (passenger side) connector.

3.

Turn ignition switch ON.

4.

Check voltage between door mirror (passenger side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK FUSE BLOCK (J/B) OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect fuse block (J/B) connector.

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace fuse block (J/B).

3.

CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER

1.

Turn ignition switch OFF.

2.

Check continuity between fuse block (J/B) harness connector and door mirror (passenger side) harness
connector.

Door mirror (Passenger side)

Ground

Condition of rear win-

dow defogger switch

Voltage (V)

(Approx.)

Connector

Terminal 

D33

4

Ground

ON

Battery voltage

OFF

0

Fuse block (J/B)

Ground

Condition of rear win-

dow defogger switch

Voltage (V)

(Approx.)

Connector

Terminal 

M3

9C

Ground

ON

Battery voltage

OFF

0

Fuse block (J/B)

Door mirror (passenger side)

Continuity

Connector

Terminal Connector

Terminal

M3

9C

D33

4

Existed