Nissan Quest E52. Manual - part 1095

SEC-70

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2198 NATS ANTENNA AMP.

Is the inspection result normal?

YES

>> Replace NATS antenna amp. Refer to 

SEC-128, "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-98, "Removal and Installation"

.

2.

Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.

>> INSPECTION END

(+)

(–)

Condition

Voltage (V)

NATS antenna amp.

Connector

Terminal

M26

3

Ground

Intelligent Key: Intelligent 
Key battery is removed

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

Brake pedal: Released

9 - 16

JMKIA6233JP

NATS antenna amp.

BCM

Continuity

Connector

Terminal

Connector

Terminal

M26

3

M121

25

Existed

NATS antenna amp.

Ground

Continuity

Connector

Terminal

M26

3

Not existed

B2555 STOP LAMP

SEC-71

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

B2555 STOP LAMP

DTC Logic

INFOID:0000000009650729

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Depress brake pedal and wait 1 second or more.

2.

Turn ignition switch ON.

3.

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:0000000009650730

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. 7, located in the fuse block (J/B)].

NO-2

>> Check harness for open or short between BCM and fuse.

2.

CHECK STOP LAMP SWITCH INPUT SIGNAL 2

Check voltage between BCM harness connector and ground.

Is the inspecting result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

REPLACE BCM

1.

Replace BCM. Refer to 

BCS-98, "Removal and Installation"

.

2.

Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2555

STOP LAMP

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
• Stop lamp relay
• Fuse
• BCM

(+)

(–)

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M124

105

Ground

9 - 16

(+)

(–)

Condition

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M121

9

Ground

Brake pedal

Depressed

9 - 16

Not depressed

0

SEC-72

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2555 STOP LAMP

>> INSPECTION END

4.

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 5.

NO

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

5.

CHECK STOP LAMP RELAY POWER SUPPLY CIRCUIT

1.

Disconnect stop lamp relay.

2.

Check voltage between stop lamp relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

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

6.

CHECK STOP LAMP SWITCH CIRCUIT

1.

Check continuity between stop lamp switch harness connector and stop lamp relay harness connector.

2.

Check continuity between stop lamp relay harness connector and ground.

3.

Check continuity between stop lamp relay harness connector and BCM harness connector.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness.

7.

CHECK STOP LAMP SWITCH

Refer to 

SEC-73, "Component Inspection (Stop Lamp Switch)"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace stop lamp switch. Refer to 

BR-18, "Removal and Installation"

.

(+)

(–)

Voltage (V)

(Approx.)

Stop lamp switch

Connector

Terminal

E115

1

Ground

Battery voltage

(+)

(–)

Voltage (V)

(Approx.)

Stop lamp relay

Connector

Terminal

E15

5

Ground

Battery voltage

Stop lamp switch

Stop lamp relay

Continuity

Connector

Terminal

Connector

Terminal

E115

2

E15

2

Existed

Stop lamp relay

Ground

Continuity

Connector

Terminal

E15

1

Existed

Stop lamp relay

BCM

Continuity

Connector

Terminal

Connector

Terminal

E15

3

M121

9

Existed

B2555 STOP LAMP

SEC-73

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

8.

CHECK STOP LAMP RELAY

Refer to 

SEC-73, "Component Inspection (Stop Lamp Relay)"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace stop lamp relay.

9.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection (Stop Lamp Switch)

INFOID:0000000009650731

1.

CHECK STOP LAMP SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp switch connector.

3.

Check continuity between stop lamp switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace stop lamp switch. Refer to 

BR-18, "Removal and Installation"

.

Component Inspection (Stop Lamp Relay)

INFOID:0000000009650732

1.

CHECK STOP LAMP RELAY

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp relay.

3.

Check continuity between stop lamp relay terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace stop lamp relay.

Stop lamp switch

Condition

Continuity

Terminal

1

2

Brake pedal

Not depressed

Not existed

Depressed

Existed

Stop lamp relay

Condition

Continuity

Terminal

3

5

12 V direct current supply between terminals 1 and 2

Existed

No current supply

Not existed