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Nissan Pathfinder (2011 year). Instruction - part 553

B2190, P1614 NATS ANTENNA AMP.

SEC-131

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

SEC

B2190, P1614 NATS ANTENNA AMP.

Description

INFOID:0000000006246310

Performs ID verification through BCM and NATS antenna amplifier when ignition key is inserted and ignition

switch turned ON.

Prohibits the start of engine when an unregistered ID of ignition key is used.

DTC Logic

INFOID:0000000006246311

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

1. Insert ignition key into the key cylinder.

2. Turn ignition switch ON.

3. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to

SEC-131, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006246312

Regarding Wiring Diagram information, refer to

SEC-176, "Wiring Diagram - Without Intelligent Key System"

CHECK NATS ANTENNA AMP. INSTALLATION

Check NATS antenna amp. installation. Refer to

SEC-183, "Removal and Installation"

Is the inspection result normal?

YES

>> GO TO 2

>> Reinstall NATS antenna amp. correctly.

CHECK NVIS (NATS) IGNITION KEY ID CHIP

Start engine with another registered NATS ignition key.
Does the engine start?

YES

>> • Ignition key ID chip is malfunctioning.

• Replace the ignition key.

• Perform initialization with CONSULT-III.

For initialization, refer to “CONSULT-III Operation Instruction”.

>> GO TO 3

CHECK POWER SUPPLY FOR NATS ANTENNA AMP.

1. Turn ignition switch OFF.

2. Check voltage between NATS antenna amp. connector M21 terminal 1 and ground.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B2190

NATS ANTENNA
AMP

• Inactive communication between NATS antenna

amp. and BCM.

• Ignition key is malfunctioning.

• Harness or connectors

(The NATS antenna amp. circuit is
open or shorted)

• Ignition key
• NATS antenna amp.
• BCM

P1614

2011 Pathfinder

SEC-132

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2190, P1614 NATS ANTENNA AMP.

Is the inspection result normal?

YES

>> GO TO 4

>> Repair or replace fuse or harness.

CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT

1. Disconnect NATS antenna amp. connector.

2. Check continuity between NATS antenna amp. connector M21

terminal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 5

>> • Repair or replace harness.

NOTE:

If harness is OK, replace BCM, refer to

BCS-55,

"Removal and Installation"

. Perform initialization with

CONSULT-III. For initialization, refer to “CONSULT-III Operation Instruction”.

CHECK NATS ANTENNA AMP. SIGNAL LINE- 1

1. Connect NATS antenna amp. connector.

2. Turn ignition switch ON.

3. Check voltage between NATS antenna amp. connector M21 ter-

minal 2 and ground with analog tester.

Is the inspection result normal?

YES

>> GO TO 6

>> • Repair or replace harness.

NOTE:

If harness is OK, replace BCM, refer to

BCS-55, "Removal and Installation"

. Perform initializa-

tion with CONSULT-III. For initialization, refer to “CONSULT-III Operation Instruction”.

CHECK NATS ANTENNA AMP. SIGNAL LINE- 2

1 - Ground

: Battery voltage

LIIA1280E

3 - Ground

: Continuity should exist.

LIIA1283E

LIIA1281E

Terminals

Position of ignition key cylinder

Voltage (V)

(Approx.)

( + )

( - )

Ground

Before inserting ignition key

Battery voltage

After inserting ignition key

Pointer of tester should move for approx. 30 seconds,

then return to battery voltage

Just after turning ignition switch

Pointer of tester should move for approx. 1 second, then

return to battery voltage

2011 Pathfinder

B2190, P1614 NATS ANTENNA AMP.

SEC-133

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

SEC

Check voltage between NATS antenna amp. connector M21 terminal

4 and ground with analog tester.

Is the inspection result normal?

YES

>> NATS antenna amp. is malfunctioning.

>> • Repair or replace harness.

NOTE:

If harness is OK, replace BCM, refer to

BCS-55, "Removal and Installation"

. Perform initializa-

tion with CONSULT-III. For initialization, refer to “CONSULT-III Operation Instruction”.

LIIA1282E

Terminals

Position of ignition key cylinder

Voltage (V)

(Approx.)

( + )

( - )

Ground

Before inserting ignition key

Battery voltage

After inserting ignition key

Pointer of tester should move for approx. 30 seconds,

then return to battery voltage

Just after turning ignition switch

Pointer of tester should move for approx. 1 second, then

return to battery voltage

2011 Pathfinder

SEC-134

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2191, P1615 DIFFERENCE OF KEY

B2191, P1615 DIFFERENCE OF KEY

Description

INFOID:0000000006246313

Performs ID verification through BCM when ignition knob switch is pressed.

Prohibits the release of steering lock or start of engine when an unregistered ID of mechanical key is used.

DTC Logic

INFOID:0000000006246314

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

1. Insert mechanical key into the key cylinder.

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to

SEC-134, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006246315

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all mechanical keys.

For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Instruction”.
Can the system be initialized and can the engine be started with re-registered mechanical key?

YES

>> Mechanical key was unregistered.

>> BCM is malfunctioning.

• Replace BCM. Refer to

BCS-55, "Removal and Installation"

• Perform initialization again.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B2191

DIFFERENCE OF
KEY

The ID verification results between BCM and me-
chanical key are NG. The registration is necessary.

Mechanical key

P1615

2011 Pathfinder

B2192, P1611 ID DISCORD, IMMU-ECM

SEC-135

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

SEC

B2192, P1611 ID DISCORD, IMMU-ECM

Description

INFOID:0000000006246316

BCM performs the ID verification with ECM that allows the engine to start. BCM starts the communication with

ECM if ignition switch is turned ON and starts the engine if the ID is OK. ECM prevents the engine from start-

ing if the ID is not registered.

DTC Logic

INFOID:0000000006246317

DTC DETECTION LOGIC

NOTE:

• If DTC B2192 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-129, "DTC Logic"

• If DTC B2192 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-130, "DTC Logic"

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to

SEC-135, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006246318

PERFORM INITIALIZATION

Perform initialization with CONSULT-III. Re-register all mechanical keys.

For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Instruction”.
Can the system be initialized and can the engine be started with re-registered mechanical key?

YES

>> ID was unregistered.

>> GO TO 2

REPLACE BCM

1. Replace BCM. Refer to

BCS-55, "Removal and Installation"

2. Perform initialization with CONSULT-III. Re-register all mechanical keys.

For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Instruction”.

Can the system be initialized and can the engine be started with re-registered mechanical key?

YES

>> BCM is malfunctioning.

>> GO TO 3

REPLACE ECM

1. Replace ECM. Refer to Removal and Installation.

2. Perform initialization with CONSULT-III. Re-register all mechanical keys.

For initialization and registration of mechanical key. Refer to “CONSULT-III Operation Instruction”.

Can the system be initialized and can the engine be started with re-registered mechanical key?

YES

>> ECM is malfunctioning.

>> GO TO 4

CHECK INTERMITTENT INCIDENT

Refer to

GI-37, "Intermittent Incident"

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B2192

ID DISCORD BCM-
ECM

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

• BCM
• ECM

P1611

2011 Pathfinder

SEC-136

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2192, P1611 ID DISCORD, IMMU-ECM

>> Inspection End.

2011 Pathfinder

B2193, P1612 CHAIN OF ECM-IMMU

SEC-137

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

SEC

B2193, P1612 CHAIN OF ECM-IMMU

Description

INFOID:0000000006246319

BCM performs the ID verification with ECM that allows the engine to start. BCM starts the communication with

ECM if ignition switch is turned ON and starts the engine if the ID is OK. ECM prevents the engine from start-

ing if the ID is not registered.

DTC Logic

INFOID:0000000006246320

DTC DETECTION LOGIC

NOTE:

• If DTC B2193 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

SEC-129, "DTC Logic"

• If DTC B2193 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

SEC-130, "DTC Logic"

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to

SEC-137, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006246321

REPLACE BCM

1. Replace BCM. Refer to

BCS-55, "Removal and Installation"

2. Perform initialization with CONSULT-III.

For initialization, refer to “CONSULT-III Operation Instruction”.

Does the engine start?

YES

>> BCM was malfunctioning.

>> ECM is malfunctioning.

• Replace ECM.

• Perform ECM re-communicating function.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B2193

CHAIN OF BCM-
ECM

Inactive communication between ECM and BCM

• Harness or connectors

(The CAN communication line is
open or short)

• BCM
• ECM

P1612

2011 Pathfinder

SEC-138

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

P1610 LOCK MODE

P1610 LOCK MODE

Description

INFOID:0000000006246322

When the starting operation is carried more than five times consecutively under the following conditions, NATS

will shift to the mode which prevents the engine from being started.

• Unregistered mechanical key is used.

• BCM or ECM's malfunctioning.

DTC Logic

INFOID:0000000006246323

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?

YES

>> Refer to

SEC-138, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000006246324

CHECK ENGINE START FUNCTION

1. Perform the check for DTC except DTC P1610.

2. Use CONSULT-III to erase DTC after fixing.

3. Check that engine can start with registered mechanical key.
Does the engine start?

YES

>> Inspection End.

>> GO TO 2

CHECK INTERMITTENT INCIDENT

Refer to

GI-37, "Intermittent Incident"

>> Inspection End.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

P1610

LOCK MODE

When the starting operation is carried out
five or more times consecutively under the
following conditions.
• Unregistered mechanical key
• BCM or ECM's malfunctioning.

—

2011 Pathfinder

Content .. 551 552 553 554 ..