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Nissan Maxima. Manual - part 1052

P1610 LOCK MODE

SEC-33

< DTC/CIRCUIT DIAGNOSIS >

SEC

2. Check continuity between key slot harness connector M40 (A)

terminal 3 and BCM harness connector M19 (B) terminal 69.

3. Check continuity between key slot harness connector M40 (A)

terminal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 8

>> Repair harness or connector.

CHECK KEY SLOT GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect key slot harness connector.

3. Check continuity between key slot harness connector M40 ter-

minal 7 and ground.

Is the inspection result normal?

YES

>> GO TO 8

>> Repair harness or connector.

CHECK INTERMITTENT INCIDENT

Refer to

GI-41, "Intermittent Incident"

>> Inspection End.

Key slot

BCM

Continuity

Connector

Terminal

Connector

Terminal

A: M40

B: M19

Yes

Key slot

Ground

Continuity

Connector

Terminal

A: M40

Ground

ALKIA0431ZZ

Key slot

Ground

Continuity

Connector

Terminal

M40

Ground

Yes

ALKIA0344ZZ

SEC-34

< DTC/CIRCUIT DIAGNOSIS >

P1611 ID DISCORD, IMMU-ECM

P1611 ID DISCORD, IMMU-ECM

Description

INFOID:0000000010051924

BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.

ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if

ignition switch is turned ON.

DTC Logic

INFOID:0000000010051925

DTC DETECTION LOGIC

NOTE:

• If DTC P1611 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-29, "DTC Logic"

• If DTC P1611 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-30, "DTC Logic"

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON under the following conditions:

CVT selector lever is in the P or N position.

Do not depress the brake pedal.

2. Check “Self Diagnostic Result” with CONSULT.
Is DTC detected?

YES

>> Refer to

SEC-34, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010051926

PERFORM INITIALIZATION

Perform initialization with CONSULT. Re-register all Intelligent Keys.

For initialization and registration of Intelligent Key, refer to “CONSULT Immobilizer mode and follow the on-

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

YES

>> ID was unregistered.

>> BCM is malfunctioning.

• Replace BCM. Refer to

BCS-79, "Removal and Installation"

• Perform initialization again.

• Replace ECM.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

P1611

ID DISCORD, IMMU-
ECM

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

• BCM
• ECM

P1612 CHAIN OF ECM-IMMU

SEC-35

< DTC/CIRCUIT DIAGNOSIS >

SEC

P1612 CHAIN OF ECM-IMMU

Description

INFOID:0000000010051927

BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK.

ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if

ignition switch is turned ON.

DTC Logic

INFOID:0000000010051928

DTC DETECTION LOGIC

NOTE:

• If DTC P1612 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-29, "DTC Logic"

• If DTC P1612 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-30, "DTC Logic"

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON under the following conditions:

CVT selector lever is in the P or N position.

Do not depress brake pedal.

2. Check “Self Diagnostic Result” with CONSULT.
Is DTC detected?

YES

>> Refer to

SEC-35, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010051929

REPLACE BCM

1. Replace BCM. Refer to

BCS-79, "Removal and Installation"

2. Perform initialization with CONSULT.

For initialization, refer to CONSULT Immobilizer mode and follow the on-screen instructions.

Does the engine start?

YES

>> BCM is malfunctioning.

• Replace BCM. Refer to

BCS-79, "Removal and Installation"

• Perform initialization again.

>> ECM is malfunctioning.

• Replace ECM.

• Perform ECM re-communicating function.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

P1612

CHAIN OF ECM-
IMMU

Inactive communication between ECM and BCM.

• Harness or connectors

(The CAN communication line is
open or shorted)

• BCM
• ECM

SEC-36

< DTC/CIRCUIT DIAGNOSIS >

P1615 DIFFRENCE OF KEY

P1615 DIFFRENCE OF KEY

Description

INFOID:0000000010051930

Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.

Prohibits the start of engine when an unregistered ID of Intelligent Key is used.

DTC Logic

INFOID:0000000010051931

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

1. Insert the Intelligent Key in the key slot. Press the push-button ignition switch.

2. Check “Self Diagnostic Result” with CONSULT.
Is DTC detected?

YES

>> Refer to

SEC-36, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010051932

PERFORM INITIALIZATION

Perform initialization with CONSULT. Re-register all Intelligent Keys.

For initialization and registration of Intelligent Key, refer to CONSULT Immobilizer mode and follow the on-

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

YES

>> Intelligent Key was unregistered.

>> BCM is malfunctioning.

• Replace BCM. Refer to

BCS-79, "Removal and Installation"

• Perform initialization again.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

P1615

DIFFERENCE OF
KEY

The ID verification results between BCM and Intel-
ligent Key are NG. The registration is necessary.

• Intelligent Key

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