Infiniti EX35. Manual - part 298

BCS

U0415 VEHICLE SPEED SIG

BCS-39

< COMPONENT DIAGNOSIS >

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U0415 VEHICLE SPEED SIG

Description

INFOID:0000000003137939

U0415 is displayed if any unusual condition is present in the reception status of the vehicle speed signal from
the ABS actuator and electric unit (control unit).

DTC Logic

INFOID:0000000003137940

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1.

Erase the DTC.

2.

Turn ignition switch OFF.

3.

Perform the “Self Diagnostic Result” of CONSULT-III, when passed 2 seconds or more after the ignition
switch is turned ON.

Is any DTC detected?

YES

>> Refer to 

BCS-39, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003137941

1.

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAG RESULTS 

Perform “Self-Diagnostic Result” of ABS actuator and electric unit (control unit) with CONSULT-III. Refer to

BRC-30, "CONSULT-III Function"

.

Is any DTC detected?

YES

>> Repair or replace the malfunctioning part.

NO

>> Replace BCM. Refer to 

BCS-84, "Exploded View"

.

DTC

 CONSULT-III display 

description

DTC Detection Condition

Probable cause

U0415

VEHICLE SPEED SIG

When the vehicle speed signal received from 
the ABS actuator and electric unit (control 
unit) remains abnormal for 2 seconds or more.

• ABS actuator and electric unit (control unit)
• BCM

BCS-40

< COMPONENT DIAGNOSIS >

B2562 LOW VOLTAGE

B2562 LOW VOLTAGE

DTC Logic

INFOID:0000000003137942

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1.

Erase DTC.

2.

Turn ignition switch OFF.

3.

Perform the “Self Diagnostic Result” of CONSULT-III, when passed 1.5 seconds or more after the ignition
switch is turned ON.

Is any DTC detected?

YES

>> Refer to 

BCS-40, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003137943

1.

CHECK POWER SUPPLY CIRCUIT

Check BCM power supply circuit. Refer to 

BCS-41, "Diagnosis Procedure"

.

Is the circuit normal?

YES

>> Replace BCM. Refer to 

BCS-84, "Exploded View"

.

NO

>> Repair the malfunctioning part.

DTC

CONSULT-III display 

description

DTC Detection Condition

Possible cause

B2562

LOW VOLTAGE

When the power supply voltage to BCM remains less 
than 8.8 V for 1.5 seconds or more

Harness or connector (power supply 
circuit)

BCS

POWER SUPPLY AND GROUND CIRCUIT

BCS-41

< COMPONENT DIAGNOSIS >

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POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000003137948

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.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Signal name

Fuse and fusible link No.

Battery power supply

K

10

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M118

1

Battery voltage

M119

11

BCM

Ground

Continuity

Connector

Terminal

M119

13

Existed

BCS-42

< COMPONENT DIAGNOSIS >

COMBINATION SWITCH INPUT CIRCUIT

COMBINATION SWITCH INPUT CIRCUIT

Diagnosis Procedure

INFOID:0000000003137949

1.

CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN

1.

Turn the ignition switch OFF.

2.

Disconnect the BCM and combination switch connectors.

3.

Check continuity between BCM harness connector and combination switch harness connector.

Does continuity exist?

YES

>> GO TO 2.

NO

>> Repair the harnesses or connectors.

2.

CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

>> GO TO 3.

3.

CHECK BCM OUTPUT VOLTAGE

1.

Connect the BCM connector.

2.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 4.

NO

>> Replace BCM. Refer to 

BCS-84, "Exploded View"

.

System

BCM

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

INPUT 1

M122

107

M33

11

Existed

INPUT 2

109

9

INPUT 3

88

7

INPUT 4

108

10

INPUT 5

87

13

System

BCM

Ground

Continuity

Connector

Terminal

INPUT 1

M122

107

Not existed

INPUT 2

109

INPUT 3

88

INPUT 4

108

INPUT 5

87

System

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

INPUT 1

M122

107

Refer to 

BCS-

46, "Refer-

ence Value"

.

INPUT 2

109

INPUT 3

88

INPUT 4

108

INPUT 5

87