Infiniti FX35, FX50 (S51). Manual - part 1384

MWI

B2205 VEHICLE SPEED

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< DTC/CIRCUIT DIAGNOSIS >

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B2205 VEHICLE SPEED

Description

INFOID:0000000005524611

Vehicle speed signal is transmitted from ABS actuator and electric unit (control unit) via CAN communication
to unified meter and A/C amp.

DTC Logic

INFOID:0000000005524612

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005524613

1.

PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Perform “Self Diagnostic Result” of ABS actuator and electric unit (control unit), and repair or replace malfunc-
tioning parts.

>> Refer to 

BRC-44, "CONSULT-III Function"

.

DTC

Display contents of 

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

B2205

VEHICLE SPEED

If the abnormal vehicle speed signal is input 
from ABS actuator and electric unit (control 
unit) for 2 seconds or more

• Wheel sensor
• ABS actuator and electric unit (control unit)

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< DTC/CIRCUIT DIAGNOSIS >

B2267 ENGINE SPEED

B2267 ENGINE SPEED

Description

INFOID:0000000005524614

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

DTC Logic

INFOID:0000000005524615

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005524616

1.

PERFORM SELF-DIAGNOSIS OF ECM

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

>> •

EC-124, "CONSULT-III Function"

 (VQ35HR models)

•

EC-718, "CONSULT-III Function"

 (VK50VE models)

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 

• Crankshaft position sensor (POS)
• ECM

MWI

B2268 WATER TEMP

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B2268 WATER TEMP

Description

INFOID:0000000005524617

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

DTC Logic

INFOID:0000000005524618

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005524619

1.

PERFORM SELF-DIAGNOSIS OF ECM

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

>> •

EC-124, "CONSULT-III Function"

 (VQ35HR models)

•

EC-718, "CONSULT-III Function"

 (VK50VE models)

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 

• Engine coolant temperature sensor
• ECM

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< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

COMBINATION METER

COMBINATION METER : Diagnosis Procedure

INFOID:0000000005524620

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 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 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:0000000005524621

1.

CHECK FUSE

Check for blown fuses.

Power source

Fuse No.

Battery

11

Ignition switch ON or START 

4

Terminals

Ignition switch position

Value (Approx.)

(+)

(-)

Combination meter

Terminal

Signal name

M53

1

Battery power supply

Ground

OFF

Battery voltage

21

Ignition signal

ON

Battery voltage

Combination meter

Ground

Continuity

Connector

Terminal

M53

5

Existed

15

Existed

22

Existed

Power source

Fuse No.

Battery

11

Ignition switch ACC or ON

19

Ignition switch ON or START

3