Nissan Sentra. Manual - part 651

MWI-50

< DTC/CIRCUIT DIAGNOSIS >

B2267 ENGINE SPEED

B2267 ENGINE SPEED

Description

INFOID:0000000009758269

The engine speed signal is transmitted from ECM to the combination meter via CAN communication.

DTC Logic

INFOID:0000000009758270

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009758271

1.

PERFORM SELF-DIAGNOSIS OF ECM

Perform Self Diagnostic Result  of ECM, and repair or replace malfunctioning parts.

>> Refer to  

EC-66, "CONSULT Function"

.

DTC

CONSULT

Detection condition

Possible malfunction location

B2267

TACHO METER
[B2267]

ECM continuously transmits abnormal engine 
speed signals for 2 seconds or more 

• Crankshaft position sensor (POS)
• ECM

MWI

B2268 WATER TEMP

MWI-51

< DTC/CIRCUIT DIAGNOSIS >

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B2268 WATER TEMP

Description

INFOID:0000000009758272

The engine coolant temperature signal is transmitted from ECM to the combination meter via CAN communi-

cation.

DTC Logic

INFOID:0000000009758273

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009758274

1.

PERFORM SELF-DIAGNOSIS OF ECM

Perform Self Diagnostic Result  of ECM, and repair or replace malfunctioning parts.

>> Refer to 

EC-66, "CONSULT Function"

.

DTC

CONSULT

Detection condition

Probable malfunction location

B2268

WATER TEMP METER
[B2268]

ECM continuously transmits abnormal engine coolant 
temperature signals for 60 seconds or more 

• Engine coolant temperature sensor
• ECM

MWI-52

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

COMBINATION METER
COMBINATION METER : Diagnosis Procedure

INFOID:0000000009758275

Regarding Wiring Diagram information, refer to 

MWI-28, "Wiring Diagram"

.

1.

CHECK FUSES

Check that the following fuses are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse after repairing the affected circuit.

NO

>> GO TO 2.

2.

POWER SUPPLY CIRCUIT CHECK

Check voltage between combination meter harness connector M24 terminals 15, 27, 28 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between combination meter harness connector M24 terminals 21, 22, 23 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connector.

BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis 
Procedure

INFOID:0000000010288788

Regarding Wiring Diagram information, refer to 

BCS-51, "Wiring Diagram"

.

Unit

Power source

Fuse No.

Combination meter

Battery 8

Ignition switch ON or ACC 

18

Ignition switch ON or START 

3

Terminals

Ignition switch position

(+)

(–)

OFF

ACC

ON

START

Connector

Terminal

M24

27

Ground

Battery voltage

Battery voltage

Battery voltage

Battery voltage

15

0V

Battery voltage

Battery voltage

0V

28

0V

0V

Battery voltage

Battery voltage

Combination meter

Ground

Continuity

Connector

Terminal

M24

21

Yes

22

23

MWI

POWER SUPPLY AND GROUND CIRCUIT

MWI-53

< DTC/CIRCUIT DIAGNOSIS >

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1.

CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1. Disconnect BCM connector M85.

2. Check voltage between BCM connector M85 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM connector M85 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair harness or connector.

BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITHOUT INTELLIGENT KEY SYSTEM) : Diag-
nosis Procedure

INFOID:0000000010288789

Regarding Wiring Diagram information, refer to 

BCS-111, "Wiring Diagram"

.

1.

CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

Terminal No.

Signal name

Fuses and fusible link No.

88

Battery power supply

12 (10A)

90

G (40A)

BCM

Ground

Voltage

Connector

Terminal

M85

88

—

Battery voltage

90

BCM

Ground

Continuity

Connector

Terminal

M85

93

—

Yes

Terminal No.

Signal name

Fuses and fusible link No.

63

Battery power supply

12 (10A)

70

G (40A)

11

Ignition switch ACC or ON

18 (10A)