Infiniti G37 Coupe. Manual — part 229

BCS-34

< COMPONENT DIAGNOSIS >

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000001612402

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001612403

1.

REPLACE BCM

When DTC [U1010] is detected, replace BCM.

>> Replace BCM.

Special Repair Requirement

INFOID:0000000001612404

1.

REQUIRED WORK WHEN REPLACING BCM

Initialize control unit. Refer to CONSULT-III operation manual NATS-IVIS/NVIS.

>> Work end.

DTC

CONSULT-III display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

BCM detected internal CAN communication circuit malfunction.

BCM

BCS

U0415 VEHICLE SPEED SIG

BCS-35

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

U0415 VEHICLE SPEED SIG

Description

INFOID:0000000001612405

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:0000000001612406

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1.

Erase the DTC.

2.

Turn ignition switch OFF.

3.

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

Is any DTC detected?

YES

>> Refer to

BCS-35, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001612407

1.

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

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

BRC-

26, "CONSULT-III Function"

.

Is any DTC detected?

YES

>> Repair or replace the malfunctioning part.

NO

>> Replace BCM.

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-36

< COMPONENT DIAGNOSIS >

B2562 LOW VOLTAGE

B2562 LOW VOLTAGE

DTC Logic

INFOID:0000000001612408

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1.

Erase DTC.

2.

Turn ignition switch OFF.

3.

Perform the “Self Diagnostic Results” 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-36, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001612409

1.

CHECK POWER SUPPLY CIRCUIT

Check BCM power supply circuit. Refer to

BCS-38, "Diagnosis Procedure"

.

Is the circuit normal?

YES

>> Replace BCM.

NO

>> Repair the malfunctioning part.

Special Repair Requirement

INFOID:0000000001612410

1.

REQUIRED WORK WHEN REPLACING BCM

Initialize control unit. Refer to CONSULT-III operation manual NATS-IVIS/NVIS.

>> Work end.

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

B2563 HI VOLTAGE

BCS-37

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

B2563 HI VOLTAGE

DTC Logic

INFOID:0000000001612411

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1.

Erase DTC.

2.

Turn ignition switch OFF.

3.

Perform the “Self Diagnostic Results” of CONSULT-III, when passed 90 seconds or more after the ignition
switch is turned ON.

Is any DTC detected?

YES

>> Refer to

BCS-37, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001612412

1.

CHECK POWER SUPPLY CIRCUIT

Check BCM power supply circuit. Refer to

BCS-38, "Diagnosis Procedure"

.

Is the circuit normal?

YES

>> Replace BCM.

NO

>> Repair the malfunctioning part.

Special Repair Requirement

INFOID:0000000001612413

1.

REQUIRED WORK WHEN REPLACING BCM

Initialize control unit. Refer to CONSULT-III operation manual NATS-IVIS/NVIS.

>> Work end.

DTC

CONSULT-III display

description

DTC Detection Condition

Possible cause

B2563

HI VOLTAGE

When the power supply voltage to BCM remains more
than 18 V for 90 seconds or more

Harness or connector (power supply
circuit)