Nissan Titan. Instruction — part 527

SEC-20

< DTC/CIRCUIT DIAGNOSIS >

B2190, P1614 NATS ANTENNA AMP.

6.

CHECK NATS ANTENNA AMP. SIGNAL LINE- 2

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.

NO

>> • Repair or replace harness.

NOTE:

If harness is OK, replace BCM, refer to

BCS-52, "Removal and Installation"

. Perform initializa-

tion with CONSULT. For initialization, refer to CONSULT Immobilizer mode and follow the on-

screen instructions.

LIIA1282E

Terminals

Position of ignition key cylinder

Voltage (V)

(Approx.)

( + )

( - )

4

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

ON

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

return to battery voltage

B2191, P1615 DIFFERENCE OF KEY

SEC-21

< DTC/CIRCUIT DIAGNOSIS >

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B2191, P1615 DIFFERENCE OF KEY

Description

INFOID:0000000009878875

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:0000000009878876

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Insert mechanical key into the key cylinder.

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

YES

>> Refer to

SEC-21, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009878877

1.

PERFORM INITIALIZATION

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

For initialization and registration of mechanical 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 mechanical key?

YES

>> Mechanical key was unregistered.

NO

>> BCM is malfunctioning.

• Replace BCM. Refer to

BCS-52, "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

SEC-22

< DTC/CIRCUIT DIAGNOSIS >

B2192, P1611 ID DISCORD, IMMU-ECM

B2192, P1611 ID DISCORD, IMMU-ECM

Description

INFOID:0000000009878878

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:0000000009878879

DTC DETECTION LOGIC

NOTE:

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

SEC-16, "DTC Logic"

.

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

SEC-17, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

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

YES

>> Refer to

SEC-22, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009878880

1.

PERFORM INITIALIZATION

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

For initialization and registration of mechanical 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 mechanical key?

YES

>> ID was unregistered.

NO

>> GO TO 2

2.

REPLACE BCM

1. Replace BCM. Refer to

BCS-52, "Removal and Installation"

.

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

For initialization and registration of mechanical 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 mechanical key?

YES

>> BCM is malfunctioning.

NO

>> GO TO 3

3.

REPLACE ECM

1. Replace ECM. Refer to Removal and Installation.

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

For initialization and registration of mechanical 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 mechanical key?

YES

>> ECM is malfunctioning.

NO

>> GO TO 4

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

B2192, P1611 ID DISCORD, IMMU-ECM

SEC-23

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4.

CHECK INTERMITTENT INCIDENT

Refer to

GI-42, "Intermittent Incident"

.

>> Inspection End.