Infiniti G37 Coupe. Manual - part 1156

KEY SLOT

SEC-121

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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KEY SLOT

Description

INFOID:0000000001840550

When the Intelligent Key battery is discharged, it performs the IVIS (NATS) ID verification between the inte-
grated transponder and BCM by inserting the Intelligent Key into the key slot, and then the engine can be
started.

Component Function Check

INFOID:0000000001840551

1.

CHECK FUNCTION

1.

Remove Intelligent Key battery from Intelligent Key.

2.

Chenge power supply position when Intelligent Key insert into key slot and then press push-button ignition
switch.

Is the inspection result normal?

YES

>> Key slot function is OK.

NO

>> Go to 

SEC-121, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001700049

1.

CHECK KEY SLOT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

3.

Check voltage between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace key slot power supply circuit.

2.

CHECK KEY SLOT GROUND CIRCUIT

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> Replace key slot.

NO

>> Repair or replace key slot ground circuit.

Key slot

Ground

Voltage (V)

(Approx.)

Connector

Terminal

M22

1

Ground

Battery voltage

5

Key slot

Ground

Continuity

Connector

Terminal

M22

7

Ground

Existed

SEC-122

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

KEY SLOT ILLUMINATION

KEY SLOT ILLUMINATION

Description

INFOID:0000000001700050

Blinks when Intelligent Key insertion is required.

Component Function Check

INFOID:0000000001700051

1.

CHECK FUNCTION

Check key slot illumination (“KEY SLOT ILLUMI”) Active Test mode.

Is the inspection result normal?

YES

>> Key slot function is OK.

NO

>> Refer to 

SEC-122, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001700052

1.

CHECK KEY SLOT ILLUMINATION OUTPUT SIGNAL 

Check voltage between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK KEY SLOT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

3.

Check voltage between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace key slot power supply circuit.

3.

CHECK KEY SLOT GROUND CIRCUIT

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace key slot ground circuit.

Key slot 

(–)

Condition

Key slot

illumination

Voltage (V)         

 (Approx.)

(+)

Connector

Terminal

M22

6

Ground

Insert Intelligent Key into 

key slot

OFF

Battery voltage

Remove Intelligent Key 

from key slot

ON

0

Key slot

(–)

Voltage (V)

(Approx.)

(+)

 Connector

Terminal

M22

1

Ground

Battery voltage

5

Key slot

Ground

Continuity

Connector

Terminal

M22

7

Existed

KEY SLOT ILLUMINATION

SEC-123

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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4.

CHECK KEY SLOT CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector M122.

3.

Check continuity between BCM harness connector and key slot harness connector.

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace key slot. Refer to 

SEC-227, "Removal and Installation"

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NO

>> Repair or replace harness between BCM and key slot.

5.

CHECK INTERMITTENT INCIDENT 

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END.

BCM

Key slot

Continuity

Connector

Terminal

Key slot 

connector

Terminal

M122

92

M22

6

Existed

BCM

Ground

Continuity 

Connector

Terminal

M122

92

Not existed

SEC-124

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

CLUTCH PEDAL POSITION SWITCH

CLUTCH PEDAL POSITION SWITCH

Description

INFOID:0000000001908951

BCM confirms the shift position with the following 3 signals.
• Clutch interlock switch
• ASCD clutch switch or ICC clutch switch
• Clutch interlock switch signal from IPDM E/R (CAN)

Component Function Check

INFOID:0000000001908953

1.

CHECK FUNCTION

1.

Clutch pedal is depressed.

2.

Start the engine.

Does the engine start ?

YES

>> INSPECTION END

NO

>> Go to  

SEC-129, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001908948

1.

INSPECTION START

Check which type of system the vehicle is equipped with.
Which type of system?

ASCD >> GO TO 2.
ICC

>> GO TO 3.

2.

CHECK ASCD CLUTCH SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect ASCD clutch switch connector.

3.

Check voltage between ASCD clutch switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>>

Check the following

• 10A fuse [No.3, located in fuse block (J/B)]
• Harness for open or short between ASCD clutch switch and fuse.

3.

CHECK ASCD CLUTCH SWITCH INPUT SIGNAL

1.

Connect ASCD clutch switch connector.

2.

Check voltage between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK ASCD CLUTCH SWITCH CIRCUIT

(+)

(-)

Voltage [V]

ASCD clutch switch

Connector

Terminal

E108

1

Ground

Battery voltage

(+)

(-)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M122

99

Ground

Clutch pedal

Not depressed

Battery voltage

Depressed

0