Infiniti EX35. Manual - part 1286

SEC-40

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

P1614 CHAIN OF IMMU-KEY

1.

Turn ignition switch OFF.

2.

Disconnect key slot connector.

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

Key slot

Ground

Continuity

Connector

Terminal

M22

7

Existed

P1615 DIFFRENCE OF KEY

SEC-41

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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P1615 DIFFRENCE OF KEY

Description

INFOID:0000000003586510

Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.

DTC Logic

INFOID:0000000003586511

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-41, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003586512

1.

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all Intelligent Keys.
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

REPLACE INTELLIGENT KEY

1.

Replace Intelligent Key.

2.

Perform initialization with CONSULT-III. 
For initialization and registration of Intelligent Key. Refer to “CONSULT-III Operation Manual NATS-IVIS/
NVIS”.

Can the system be initialized and can the engine be started with re-registered Intelligent Key?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1615

DIFFERENCE OF KEY

The ID verification results between BCM and Intelligent 
Key are NG. The registration is necessary.

Intelligent Key 

SEC-42

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2190 NATS ANTENNA AMP.

B2190 NATS ANTENNA AMP.

Description

INFOID:0000000003586513

Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.
Prohibits the release of steering lock or start of engine when an unregistered ID of Intelligent Key is used.

DTC Logic

INFOID:0000000003586514

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Insert Intelligent Key into the key slot.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-42, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Press the push-button ignition switch.

2.

Check “Self diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

SEC-42, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003586515

1.

 INSPECTION START

Check the case in which DTC is detected.
• Case1: It is detected when Intelligent Key is inserted into key slot.
• Case2: It is detected after Intelligent Key is inserted into key slot and push-button ignition switch is pressed.
In which case is DTC detected?

Case1. >> GO TO 2.
Case2. >> GO TO 4.

2.

CHECK KEY SLOT INPUT SIGNAL

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

>> Replace key slot. Refer to 

SEC-204, "Removal and Installation"

.

NO

>> GO TO 3.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2190

NATS ANTENNA 
AMP

Inactive communication between key slot and 
BCM.

• Harness or connectors

(The key slot circuit is open or 
shorted)

• Key  slot 
• BCM

(+)

(–)

Voltage (V)

(Approx.)

Key slot

Connector

Terminal

M22

2

Ground

Battery voltage

B2190 NATS ANTENNA AMP.

SEC-43

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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3.

CHECK KEY SLOT CIRCUIT

1.

Disconnect BCM connector M122.

2.

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

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

4.

CHECK PUSH-BUTTON IGNITION SWITCH OPERATION

Press push-button ignition switch and check if it turns ON.

Does ignition switch turn to ON?

YES

>> GO TO 5.

NO

>> GO TO 7.

5.

CHECK KEY SLOT COMMUNICATION SIGNAL

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

>> Replace key slot. Refer to 

SEC-204, "Removal and Installation"

.

NO

>> GO TO 6.

6.

CHECK KEY SLOT COMMUNICATION SIGNAL CIRCUIT

1.

Disconnect BCM connector M122.

2.

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

3.

Check continuity between key slot harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector.

7.

CHECK KEY SLOT GROUND CIRCUIT

Key slot

BCM

Continuity

Connector

Terminal

Connector

Terminal

M22

2

M122

80

Existed

Key slot

Ground

Continuity

Connector

Terminal

M22

2

Not existed

(+)

(–)

Voltage (V)

(Approx.)

Key slot

Connector

Terminal

M22

3

Ground

Battery voltage

Key slot

BCM

Continuity

Connector

Terminal

Connector

Terminal

M22

3

M122

81

Existed

Key slot

Ground

Continuity

Connector

Terminal

M22

3

Not existed