Nissan Altima HL32 Hybrid. Manual — part 85

BCS-38

< COMPONENT DIAGNOSIS >

[BCM]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000004218982

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000004218983

1.

REPLACE BCM

When DTC U1010 is detected, replace BCM.

>> Replace BCM. Refer to

BCS-87, "Removal and Installation"

.

CONSULT-III display

description

DTC Detection Condition

Possible cause

CAN COMM CIRCUIT
[U1010]

BCM detected internal CAN communication circuit malfunction.

BCM

BCS

U0415 VEHICLE SPEED SIG

BCS-39

< COMPONENT DIAGNOSIS >

[BCM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

U0415 VEHICLE SPEED SIG

Description

INFOID:0000000004218984

U0415 is displayed if any unusual condition is present in the reception status of the vehicle speed signal from

the brake ECU.

DTC Logic

INFOID:0000000004218985

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1. Erase the DTC.

2. Turn ignition switch OFF.

3. Perform the "SELF-DIAG 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-81, "DTC Index"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004218986

1.

BRAKE ECU SELF-DIAG RESULTS

Perform "SELF-DIAG RESULTS" of brake ECU with CONSULT-III. Refer to

BRC-45, "CONSULT-III Function"

.

Is any DTC detected?

YES

>> Repair or replace the malfunctioning part.

NO

>> Replace BCM. Refer to

BCS-87, "Removal and Installation"

.

DTC

Display contents of

CONSULT-III

Diagnostic item is detected when ...

Probable malfunction location

U0415

VEHICLE SPEED SIG
[U0415]

When the vehicle speed signal received from
the brake ECU remains abnormal for 2 sec-
onds or more.

• Brake ECU
• BCM

BCS-40

< COMPONENT DIAGNOSIS >

[BCM]

B2562 LOW VOLTAGE

B2562 LOW VOLTAGE

DTC Logic

INFOID:0000000004218987

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1. Erase DTC.

2. Turn ignition switch OFF.

3. Perform the "SELF-DIAG RESULTS" of CONSULT-III, when passed 1.5 seconds or more after ignition

switch is turned ON.

Is any DTC detected?

YES

>> Refer to

BCS-40, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004218988

1.

CHECK 12-VOLT BATTERY VOLTAGE

Check 12-volt battery voltage.
Is 12-volt battery voltage less than 8.8V?

Yes

>> Charge battery and retest. Refer to

PG-70, "Battery"

.

No

>> GO TO 2

2.

CHECK POWER SUPPLY CIRCUIT

Check BCM power supply circuit. Refer to

BCS-42, "Diagnosis Procedure"

.

Is the circuit OK?

Yes

>> Replace BCM. Refer to

BCS-87, "Removal and Installation"

.

No

>> Repair or replace the malfunctioning part.

Special Repair Requirement

INFOID:0000000004218989

1.

REQUIRED WORK WHEN REPLACING BCM

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

>> Work End.

DTC

Display contents of

CONSULT-III

Diagnostic item is detected when ...

Possible cause

B2562

LOW VOLTAGE

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

Harness or connector (power supply
circuit)

BCS

B2563 HI VOLTAGE

BCS-41

< COMPONENT DIAGNOSIS >

[BCM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

B2563 HI VOLTAGE

DTC Logic

INFOID:0000000004533088

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

DTC CONFIRMATION

1. Erase DTC.

2. Turn ignition switch OFF.

3. Perform the "SELF-DIAG 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-41, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000004533089

1.

CHECK 12-VOLT BATTERY VOLTAGE

Check 12 volt battery voltage.
Is 12-volt battery voltage greater than 18V?

Yes

>> Check vehicle 12-volt battery charging system. Refer to

PG-70, "Battery"

.

No

>> GO TO 2

2.

CHECK POWER SUPPLY CIRCUIT

Check BCM power supply circuit. Refer to

BCS-42, "Diagnosis Procedure"

.

Is the circuit OK?

Yes

>> Replace BCM. Refer to

BCS-87, "Removal and Installation"

.

No

>> Repair or replace the malfunctioning part.

Special Repair Requirement

INFOID:0000000004533090

1.

REQUIRED WORK WHEN REPLACING BCM

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

>> Work end.

DTC

Display contents of

CONSULT-III

Diagnostic item is detected when ...

Possible cause

B2563

HI VOLTAGE

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

Harness or connector (power supply
circuit)