Nissan Altima HL32 Hybrid. Manual - part 142

 

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Nissan Altima HL32 Hybrid. Manual - part 142

 

 

C1377

BRC-133

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

3. Measure the voltage according to the value(s) in the table below.

*: For 5 seconds after the driver

′s door is opened.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness or connector (OUT or CTY+ circuit).

7.

RECONFIRM DTC

1. Turn the ignition switch OFF.

2. Clear the DTC.

3. Turn the ignition switch ON.

4. Check if the same DTC is recorded.

Result

A

>> Check for intermittent problems (symptom simulation).

B

>> Replace brake ECU.

8.

CHECK AUXILIARY BATTERY

Check the auxiliary battery voltage.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Charge or replace auxiliary battery.

9.

INSPECT BRAKE CAPACITOR (+BC TERMINAL)

1. Disconnect the brake capacitor connector.

2. Measure the voltage according to the value(s) in the table below.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace harness or connector (+BC circuit).

10.

RECONFIRM DTC

1. Clear the DTC.

2. Turn the ignition switch ON.

3. Check if the same DTC is recorded.

Brake capacitor

Condition

Specified condition

Connector

Terminal

B131

1 – Ground

Always

10 to 14 V

B131

2 – Ground

Always

10 to 14 V

*

B131

7 – Ground

Always

10 to 14 V

JSFIA0369GB

Condition

Proceed to

DTC (C1377) is not output.

A

DTC (C1377) is output.

B

Standard voltage : 11 to 14 V

Brake capacitor

Condition

Specified condition

Connector

Terminal

B131

8 – Ground

Always

10 to 14 V

JSFIA0366GB

BRC-134

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1377

Result

A

>> Check for intermittent problems (symptom simulation).

B

>> Replace brake capacitor.

Special Repair Requirement

INFOID:0000000004212726

1.

ZERO ADJUSTMENT FOR EACH SENSOR AND OFFSET LEANING FOR LINEAR SOLENOID VALVE

After erasing brake ECU memories, perform zero adjustment of following sensors and initialization of linear

solenoid valve.

• Steering angle sensor: 

BRC-9, "PERFORM ZERO POINT OF STEERING ANGLE SENSOR : Description"

.

• Yaw rate/side/decel G sensor: 

BRC-8, "PERFORM ZERO POINT OF YAW RATE/SIDE/DECEL G SENSOR

: Description"

.

• Brake stroke sensor: 

BRC-9, "PERFORM ADJUSTMENT OF STROKE SENSOR : Description"

.

• Linear solenoid valve: 

BRC-7, "PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALI-

BRATION : Description"

.

>> END

Condition

Proceed to

DTC (C1377) is not output.

A

DTC (C1377) is output.

B

C1378

BRC-135

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1378

Description

INFOID:0000000004212727

The brake capacitor provides auxiliary power for brake control when an auxiliary battery (12 V) voltage drops.

The FAIL and ENA lines are place between the brake ECU and the brake capacitor.

Signals indicating that the brake capacitor is in auxiliary mode are sent to the brake ECU through the FAIL line.

Change permit prohibition signals are sent to the brake capacitor through the ENA line.

DTC Logic

INFOID:0000000004212728

Diagnosis Procedure

INFOID:0000000004212729

CAUTION:

When replacing the brake ECU, perform initialization of linear solenoid valve and calibration.

1.

INSPECT BRAKE CAPACITOR (IG1 TERMINAL)

1. Disconnect the brake capacitor connector.

2. Turn the ignition switch ON.

3. Measure the voltage according to the value(s) in the table below.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connector (IG1 circuit).

2.

INSPECT BRAKE CAPACITOR (GND TERMINAL)

1. Turn the ignition switch OFF.

2. Measure the resistance according to the value(s) in the table

below.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector (GND circuit).

3.

CHECK HARNESS AND CONNECTOR (BRAKE ECU – BRAKE CAPACITOR)

1. Disconnect the brake ECU connector.

DTC

INF code

Display item

DTC detection condition

Trouble area

C1378

112

CAPACITOR COMM

When either of the following detected:
1.

Open or short in FAIL line.

2.

Malfunction inside the power back up 
unit.

• Brake capacitor
• Brake capacitor circuit

113

When either of the following detected:
1.

Open or short in ENA line.

2.

Malfunction inside the Brake ECU.

• Brake  ECU
• Brake ECU circuit

Brake capacitor

Condition

Specified condition

Connector

Terminal

B131

5 – Ground

Ignition switch ON

10 to 14 V

JSFIA0370GB

Brake capacitor

Condition

Specified condition

Connector

Terminal

B131

14 – Ground

Always

Below 1 

JSFIA0371GB

BRC-136

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1378

2. Measure the resistance according to the value(s) in the table

below.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness or connector.

4.

RECONFIRM DTC

1. Reconnect the brake ECU connector and the brake capacitor connector.

2. Clear the DTC.

3. Turn the ignition switch ON.

4. Check if the same DTC is recorded.

Result

A

>> GO  TO  5.

B

>> Check for intermittent problems (symptom simulation).

5.

CHECK FREEZE FRAME DATA

Check the INF code from the Freeze Frame Data memorized when the DTC (1378) is stored.

Result

A

>> Replace brake ECU.

B

>> Replace brake capacitor.

JSFIA0372GB

Brake ECU

Brake capacitor

Condition

Specified condition

Connector

Terminal

Connector

Terminal

E60

24

B131

1

Always

Below 1 

E60

24

Ground

Always

10 k

Ω or higher

E60

32

B131

2

Always

Below 1 

E60

32

Ground

Always

10 k

Ω or higher

E60

37

B131

12

Always

Below 1 

E60

37

Ground

Always

10 k

Ω or higher

E60

22

B131

13

Always

Below 1 

E60

22

Ground

Always

10 k

Ω or higher

Condition

Proceed to

DTC (C1378) is output.

A

DTC (C1378) is not output.

B

Condition

Proceed to

INF code (112) is not output.

A

INF code (112) is output.

B

 

 

 

 

 

 

 

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