Nissan Note E12. Manual - part 554

SEC-68

< DTC/CIRCUIT DIAGNOSIS >

B2198 NATS ANTENNA AMP.

B2198 NATS ANTENNA AMP.

DTC Logic

INFOID:0000000009567424

DTC DETECTION LOGIC

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-13, "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

>> Go to 

SEC-68, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009567425

Regarding Wiring Diagram information, refer to 

SEC-49, "Wiring Diagram"

.

1.

CHECK FUSE

1. Turn power switch OFF.

2. Check that the following fuse in IPDM E/R is not blown.

Is the inspection result normal?

YES

>> GO TO 2.

NO

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

2.

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 3.

3.

CHECK NATS ANTENNA AMP. POWER SUPPLY CIRCUIT

1. Disconnect IPDM E/R connector.

2. Check continuity between IPDM E/R harness connector and NATS antenna amp. connector.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2198

NATS ANTENNA AMP

Inactive communication between NATS 
antenna amp. and BCM is detected when 
BCM enters in the low power consumption 
mode (BCM sleep condition)

• Harness or connectors

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

• NATS antenna amp.
• BCM

Signal name

Fuse No.

Battery power supply

53 (20 A)

(+)

(–)

Voltage (V)

(Approx.)

NATS antenna amp.

Connector

Terminal

M21

1

Ground

Battery voltage

B2198 NATS ANTENNA AMP.

SEC-69

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK NATS ANTENNA AMP. GROUND CIRCUIT

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 1

Check voltage signal between NATS antenna amp. harness connector and ground using an oscilloscope.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

CHECK NATS ANTENNA AMP. OUTPUT SIGNAL CIRCUIT 1

1. Disconnect BCM connector.

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

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

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace harness.

7.

CHECK NATS ANTENNA AMP. COMMUNICATION SIGNAL 2

IPDM E/R

NATS antenna amp.

Continuity

Connector

Terminal

Connector

Terminal

F42

35

M21

1

Yes

NATS antenna amp.

Ground

Continuity

Connector

Terminal

M21

4

Yes

(+)

(–)

Condition

Voltage (V)

(Approx.)

NATS antenna amp.

Connector

Terminal

M21

2

Ground

Intelligent Key: Intelligent 
Key battery is removed

Brake pedal: Depressed
NOTE:
Waveform varies each time 
when brake pedal is depressed

Brake pedal: Not depressed

12

JMKIA6232JP

NATS antenna amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M21

2

M18

21

Yes

NATS antenna amp.

Ground

Continuity

Connector

Terminal

M21

2

No

SEC-70

< DTC/CIRCUIT DIAGNOSIS >

B2198 NATS ANTENNA AMP.

Check voltage signal between NATS antenna amp. harness connector and ground using an oscilloscope.

Is the inspection result normal?

YES

>> Replace NATS antenna amp. Refer to 

SEC-121, "Removal and Installation"

.

NO

>> GO TO 8.

8.

CHECK NATS ANTENNA AMP. OUTPUT SIGNAL CIRCUIT 2

1. Disconnect BCM connector.

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

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

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace harness.

9.

REPLACE BCM

1. Replace BCM. Refer to 

BCS-67, "Removal and Installation"

.

2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT. Refer to the CON-

SULT Immobilizer mode and follow the on-screen instructions.

>> Inspection End

(+)

(–)

Condition

Voltage (V)

(Approx.)

NATS antenna amp.

Connector

Terminal

M21

3

Ground

Intelligent Key: Intelligent 
Key battery is removed

Brake pedal: Depressed
NOTE:
Waveform varies each time 
when brake pedal is depressed

Brake pedal: Not depressed

12

JMKIA6233JP

NATS antenna amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M21

3

M18

25

Yes

NATS antenna amp.

Ground

Continuity

Connector

Terminal

M21

3

No

B2555 STOP LAMP

SEC-71

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2555 STOP LAMP

DTC Logic

INFOID:0000000009567426

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Depress brake pedal and wait 1 second or more.

2. Check DTC in Self Diagnostic Result mode of BCM using CONSULT.
Is DTC detected?

YES

>> Go to 

SEC-71, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009567427

Regarding Wiring Diagram information, refer to 

SEC-24, "Wiring Diagram"

.

1.

CHECK STOP LAMP SWITCH INPUT SIGNAL 1

1. Turn ignition switch OFF.

2. Disconnect BCM connector.

3. Check voltage between BCM harness connector and ground.

Is the inspection normal?

YES

>> GO TO 2.

NO-1 >> Check 10 A fuse [No. 30, located in the fuse block (J/B)].

NO-2 >> Check harness for open or short between BCM and fuse.

2.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1. Disconnect stop lamp switch connector.

2. Check voltage between stop lamp switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness for open or short between stop lamp switch and fuse.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2555

STOP LAMP CIRCUIT

BCM makes a comparison between the 
upper voltage and lower voltage of stop 
lamp switch. It judges from their values to 
detect the malfunctioning circuit.

• Harness or connectors

(Stop lamp switch circuit is open or 
shorted.)

• Stop lamp switch
• Fuse
• BCM

(+)

(–)

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M98

105

Ground

Battery voltage

(+)

(–)

Voltage (V)

(Approx.)

Stop lamp switch

Connector

Terminal

E13 (CVT)

1

Ground

Battery voltage

E57 (MT)