Infiniti G35 (V35) Sedan. Manual - part 320

 

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Infiniti G35 (V35) Sedan. Manual - part 320

 

 

DIAGNOSIS AND REPAIR WORKFLOW

DEF-3

< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000000962678

DETAILED FLOW

1.

OBTAIN INFORMATION ABOUT SYMPTOM

Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.

>> GO TO 2.

2.

CHECK DTC

Perform self diagnosis with CONSULT-III
Is any DTC detected?

YES

>> Refer to 

BCS-74, "DTC Index"

.

NO

>> GO TO 3.

3.

REPRODUCE THE MALFUNCTION INFORMATION

Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.

>> GO TO 4.

4.

PERFORM “BASIC INSPECTION”

Perform the basic inspection.Refer to 

DEF-58, "Basic Inspection"

.

>> GO TO 5.

5.

IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”

Use “Symptom diagnosis” from the symptom inspection result in step 3. Then identify where to start perform-
ing the diagnosis based on possible causes and symptoms.

>> GO TO 6.

6.

IDENTIFY MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”

Perform the diagnosis with “Component diagnosis” of the applicable system.

>> GO TO 7.

7.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 8.

8.

FINAL CHECK

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 3.

Is the malfunctioning part repaired or replaced?

YES

>> Trouble diagnosis is completed.

NO

>> GO TO 4.

DEF-4

< FUNCTION DIAGNOSIS >

REAR WINDOW DEFOGGER SYSTEM

FUNCTION DIAGNOSIS

REAR WINDOW DEFOGGER SYSTEM

System Diagram

INFOID:0000000000962679

System Description

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Operation Description

• Turn rear window defogger switch ON when the ignition switch is turned ON. Then malfunction switch (rear

window defogger switch) transmits rear window defogger switch signal to AV control unit via AV communica-
tion. AV control unit transmits rear window defogger switch signal to BCM via CAN communication.

• BCM turns rear window defogger relay ON when rear defogger switch signal is received.
• Rear window defogger and door mirror defogger (with mirror defogger) are supplied with power and operate

when rear window defogger relay turns ON.

• BCM transmits rear window defogger control signal to AV control unit via CAN communication when rear

window defogger operates.

• Rear window defogger ON is displayed when AV control unit receives signals.

The indicator of the rear window defogger switch also turns ON when rear defogger control signal is trans-
mitted to multifunction switch (rear window defogger switch) with AV communication.

Timer function

• BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch

is turned ON while ignition switch is ON. It makes rear window defogger and door mirror defogger (with mir-
ror defogger) operate.

• Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns

rear window defogger relay OFF. The same reaction also occurs during timer operation, if the ignition switch
is turned OFF. 

INPUT/OUTPUT SIGNAL CHART

*: With mirror defogger

Component Parts Location

INFOID:0000000000962681

JMLIA0005GB

Switch

Input signal to BCM

BCM function

Acutuator

Rear window defogger switch

Defogger switch signal

Rear window defogger & Door mir-

ror defogger

*

 control

Rear window defogger

Door mirror defogger 

*

Push button ignition switch

Ignition signal

REAR WINDOW DEFOGGER SYSTEM

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< FUNCTION DIAGNOSIS >

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Component Description

INFOID:0000000000962682

*: 

With mirror defogger

JMLIA0003ZZ

1.

Rear window defogger relay

2.

BCM M118, M119, M122, M123

3.

IPDM E/R E6

4.

Rear window defogger switch (built in 
multifunction switch M72)

5.

 Rear window defogger B401, B402

6.

Condenser B26

7.

AV control unit
With NAVI M87,M88
Without NAVI M83, M85

A.

Dash side lower (driver side)

B.

Dash side lower (passenger side)

C.

Engine room dash panel (RH)

D.

Behind rear pillar finisher( LH )

E.

Behind cluster lid C

BCM

• Operates the rear window defogger with the operation of rear window defogger switch.
• Performs the timer control of rear window defogger.

Rear window defogger relay

• Operates the rear window defogger and the door mirror defogger with the control signal from 

BCM.

Multfunction switch
(Rear window defogger 
switch)

• The rear window defogger switch is installed.
• Turns the indicator lamp ON when detecting the operation of rear window defogger.

AV control unit

• Displays the rear window defogger ON to the display when detecting the operation of rear win-

dow defogger.

Rear window defogger

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

the rear window from fogging up.

Door mirror defogger

*

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

the door mirror from fogging up.

 

 

 

 

 

 

 

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