Nissan X-Trail 32. Manual - part 1878

B2196 DONGLE UNIT

SEC-279

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK DONGLE UNIT GROUND CIRCUIT

Check continuity between dongle unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace dongle unit.

NO

>> Repair or replace harness.

BCM

Ground

Continuity

Connector

Terminal

M87

56

Not existed

Dongle unit

Ground

Continuity

Connector

Terminal

M53

4

Existed

SEC-280

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2198 NATS ANTENNA AMP.

B2198 NATS ANTENNA AMP.

DTC Description

INFOID:0000000010922294

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors

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

• NATS antenna amp.

FAIL-SAFE

Inhibit engine cranking

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE 

1.

Make the conditions that BCM enters in the low power consumption mode (BCM sleep condition).
Refer to 

BCS-18, "POWER CONSUMPTION CONTROL SYSTEM : System Description"

.

2.

Turn ignition switch ON.

3.

Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES

>> Refer to 

SEC-280, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010922295

1.

CHECK NATS ANTENNA AMP. POWER SUPPLY

1.

Disconnect NATS antenna amp. connector.

2.

Check voltage between NATS antenna amp. harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check that the following fuse in fuse block (J/B) is not blown.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the blown fuse after repairing the cause of blowing.

3.

CHECK NATS ANTENNA AMP. POWER SUPPLY CIRCUIT 

1.

Disconnect fuse block (J/B) connector.

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B2198-00

NATS ANTENNA AMP.
(Nissan Anti-Theft System antenna 
amplifier)

Inactive communication between NATS antenna amp. and BCM

NATS antenna amp.

(-)

voltage

Connector

Terminal

M69

3

Ground

Battery voltage

Signal name

Fuse No

Battery voltage

9 (5A)

B2198 NATS ANTENNA AMP.

SEC-281

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

2.

Check continuity between NATS antenna amp. harness connector and fuse block (J/B) harness connec-
tor.

3.

Check continuity between NATS antenna amp. harness connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

NO

>> Repair or replace harness.

4.

CHECK NATS ANTENNA AMP. GROUND CIRCUIT 

1.

Check continuity between NATS antenna amp. harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK NATS ANTENNA AMP. COMMUNICATION SIGNAL 

Check voltage between NATS antenna amp. harness connector and ground.

Is the inspection result normal?

YES

>> Replace NATS antenna amp. Refer to 

SEC-311, "Removal and Installation"

.

NO

>> GO TO 6.

6.

CHECK NATS ANTENNA AMP. COMMUNICATION SIGNAL CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between NATS antenna amp. harness connector and BCM harness connector.

3.

Check continuity between BCM harness connector and ground.

NATS antenna amp.

Fuse block (J/B)

Continuity

Connector

Terminal

Connector

Terminal

M69

3

M2

12B

Existed

NATS antenna amp.

Ground

Continuity

Connector

Terminal

Not existed

M69

3

NATS antenna amp.

Ground

Continuity

Connector

Terminal

Existed

M69

2

(+)

(–)

Condition

Voltage (V)

NATS antenna amp.

Connector

Terminal

M69

1

Ground

Just after inserting ignition key into 
key cylinder

Pointer of tester should move

Other than above

0 V

4

Just after inserting ignition key into 
key cylinder

Pointer of tester should move

Other than above

0 V

NATS antenna amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M69

1

M86

109

Existed

4

113

SEC-282

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

B2198 NATS ANTENNA AMP.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness.

7.

REPLACE BCM

Replace BCM. Refer to 

BCS-121, "Removal and Installation"

.

>> INSPECTION END

BCM

Ground

Continuity

Connector

Terminal

M86

113

Not existed

109