Infiniti G35 (V35) Sedan. Manual - part 955

MWI

B2267 ENGINE SPEED

MWI-47

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B2267 ENGINE SPEED

Description

INFOID:0000000000964387

The engine speed signal is transmitted from ECM to the unified meter and A/C amp. with CAN communica-
tion.

DTC Logic

INFOID:0000000000964388

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000964389

1.

PERFORM SELF DIAGNOSIS OF ECM

Perform “Self Diagnosis Result” of ECM, and repair or replace malfunctioning parts.

>> Refer to 

EC-113, "CONSULT-III Function"

.

DTC

Display contents of 

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

B2267

ENGINE SPEED

If ECM continuously transmits abnormal en-
gine speed signals for 2 seconds or more 

ECM

MWI-48

< COMPONENT DIAGNOSIS >

B2268 WATER TEMP

B2268 WATER TEMP

Description

INFOID:0000000000964390

The engine coolant temperature signal is transmitted from ECM to the unified meter and A/C amp. via CAN
communication.

DTC Logic

INFOID:0000000000964391

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000964392

1.

PERFORM SELF DIAGNOSIS OF ECM

Perform “Self Diagnosis Result” of ECM, and repair or replace malfunctioning parts.

>> Refer to 

EC-113, "CONSULT-III Function"

.

DTC

Display contents of 

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

B2268

WATER TEMP

If ECM continuously transmits abnormal en-
gine coolant temperature signals for 60 sec-
onds or more 

ECM

MWI

POWER SUPPLY AND GROUND CIRCUIT

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< COMPONENT DIAGNOSIS >

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POWER SUPPLY AND GROUND CIRCUIT

COMBINATION METER

COMBINATION METER : Diagnosis Procedure

INFOID:0000000000964393

1.

CHECK FUSE

Check for blown fuses.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between combination meter harness connector M53 terminals 1, 21 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between combination meter and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector.

3.

Check continuity between combination meter harness connector M53 terminals 5, 15, 22 and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

UNIFIED METER AND A/C AMP.

UNIFIED METER AND A/C AMP. : Diagnosis Procedure

INFOID:0000000000964394

1.

CHECK FUSE

Check for blown fuses.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between unified meter and A/C amp. harness connector M67 terminals 54, 41, 53 and ground.

Power source

Fuse No.

Battery

11

Ignition switch ON or START 

4

Terminal No.

Signal name

Ignition switch position

Value (Approx.)

1

Battery power supply

OFF

Battery voltage

21

Ignition signal

ON

Battery voltage

5, 15, 22 - Ground

: Continuity should exist.

Power source

Fuse No.

Battery

6

Ignition switch ACC or ON

19

Ignition switch ON or START

3

MWI-50

< COMPONENT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between unified meter and A/C amp. and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect unified meter and A/C amp. connector.

3.

Check continuity between unified meter and A/C amp. harness connector M67 terminals 55, 71 and
ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

BCM (BODY CONTROL MODULE)

BCM (BODY CONTROL MODULE) : Diagnosis Procedure

INFOID:0000000000964395

1.

CHECK FUSE AND FUSIBLE LINK

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

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connectors.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Terminal No.

Signal name

Ignition switch position

Value (Approx.)

54

Battery power supply

OFF

Battery voltage

41

ACC power supply

ACC

Battery voltage

53

Ignition signal

ON

Battery voltage

55, 71 - Ground

: Continuity should exist.

Terminal No.

Signal name

Fuse and fusible link No.

1

Battery power supply

K

11

10

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M118

1

Battery voltage

M119

11