Nissan Altima HL32 Hybrid. Manual - part 133

 

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Nissan Altima HL32 Hybrid. Manual - part 133

 

 

C1249

BRC-97

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

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

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connector (power source

circuit).

8.

INSPECT STOP LAMP SWITCH

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

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace stop lamp switch.

9.

CHECK HARNESS AND CONNECTOR

1. Disconnect the brake ECU connector.

2. Measure the resistance 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.

10.

RECONFIRM DTC

1. Reconnect the brake ECU connector and the stop lamp switch connector.

2. Clear the DTC.

3. Turn the ignition switch ON (READY).

4. Depress the brake pedal several times to test the stop lamp switch circuit.

5. Check if the same DTC is recorded.

Stop lamp switch

Condition

Specified condition

Connector

Terminal

E38

1 – Ground

Always

10 to 14 V

JSFIA0349GB

Stop lamp switch

Condition

Specified condition

Terminal

1 – 2

Switch pin free

Below 1 

1 – 2

Switch pin pushed in

10 k

Ω or higher

JSFIA0351GB

JSFIA0350GB

Brake ECU

Stop lamp switch

Condition

Specified condition

Connector

Terminal

Connector

Terminal

E60

2

E38

2

Always

Below 1 

E60

2

Ground

Always

10 k

Ω or higher

BRC-98

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1249

Result

NOTE:

If troubleshooting has been carried out according to the Problems Symptoms Table, refer back to the table

and proceed to the next step.

A

>> Inspect lighting system (stop lamp circuit).

B

>> Replace brake ECU.

Special Repair Requirement

INFOID:0000000004212678

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 (C1249) is not output.

A

DTC (C1249) is output.

B

C1252, C1253

BRC-99

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1252, C1253

Description

INFOID:0000000004212679

The brake ECU detects decreases in the accumulator pressure according to the data from the accumulator

pressure sensor, and then starts and stops the pump motor by operating the motor relay.

The brake ECU usually drives the ABS motor relay No.1 for Electronically Controlled Brake control, and the

ABS motor relay No.2 for ABS control. If either of them is malfunctioning, the other will substitute.

DTC Logic

INFOID:0000000004212680

Diagnosis Procedure

INFOID:0000000004212681

CAUTION:

DTC

INF code

Display item

DTC detection condition

Trouble area

C1252

130

MOTOR TIME LONG

Motor relay is on for at least 5 minutes.

• ABS motor relay No.1
• ABS motor relay No.1 

circuit

• ABS motor relay No.2
• ABS motor relay No.2 

circuit

• Brake actuator assem-

bly (Accumulator pres-
sure sensor circuit)

C1253

132

MOTOR RELAY

ABS motor relay No.1 coil is energized for at 
least 1 second when linear solenoid power 
source voltage 1 (BS1) is 9.5 V or more and 
ABS motor relay No.1 is off.

• ABS MTR1 fuse
• ABS motor relay No.1
• ABS motor relay No.1 

circuit

133

ABS motor relay No.1 coil is energized for at 
least 1 second when linear solenoid power 
source voltage 1 (BS1) is 9.5 V or more and 
ABS motor relay No.1 is on.

134

MTT input is 3.5 V or less for at least 1 second 
when linear solenoid power source voltage 1 
(BS1) is 9.5 V or more and ABS motor relay 
No.1 is on.

• ABS MTR1 fuse
• ABS motor relay No.1
• ABS motor relay No.1 

circuit

• Brake actuator assem-

bly (pump motor)

• Pump motor circuit

136

ABS motor relay No.2 coil is energized for at 
least 1 second when linear solenoid power 
source voltage 2 (BS2) is 9.5 V or more and 
ABS motor relay No.2 is off.

• ABS MTR2 fuse
• ABS motor relay No.2
• ABS motor relay No.2 

circuit

137

ABS motor relay No.2 coil is energized for at 
least 1 second when linear solenoid power 
source voltage 2 (BS2) is 9.5 V or more and 
ABS motor relay No.2 is on.

138

MTT input is 3.5 V or less for at least 1 second 
when linear solenoid power source voltage 1 
(BS1) is 9.5 V or more and ABS motor relay 
No.2 is on.

• ABS MTR2 fuse
• ABS motor relay No.2
• ABS motor relay No.2 

circuit

• Brake actuator assem-

bly (pump motor)

• Pump motor circuit

140

MTT input is 3.5 V or less for at least 2 sec-
onds when ABS motor relay No.1 and 2 are 
off.

• ABS motor relay No.1
• ABS motor relay No.2
• Brake actuator assem-

bly (pump motor)

• Pump motor circuit

BRC-100

< COMPONENT DIAGNOSIS >

[VDC/TCS/ABS]

C1252, C1253

When replacing the brake ECU or brake actuator assembly, perform initialization of linear solenoid

valve and calibration.

1.

INSPECT ABS MTR FUSE

1. Remove the fusible link from the engine room R/B.

2. Check if the fusible link is melted.

NOTE:

The fusible link is melted.

3. Install the fusible link to the engine room R/B with the bolt.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace fusible link (ABS MTR FUSE).

2.

PERFORM ACTIVE TEST BY CONSULT-III (ABS MOTOR RELAY)

1. Connect the CONSULT-III.

2. Turn the ignition switch ON.

3. Select the “ACTIVE TEST” on the CONSULT-III.

4. Check the operation sound of the ABS motor relay and motor when operating it with the CONSULT-III.

NOTE:

The operation sound of the ABS motor relay and motor should be heard.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 7.

3.

INSPECT BRAKE ACTUATOR ASSEMBLY

1. Turn the ignition switch OFF.

2. Disconnect the brake actuator connector.

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

below.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace brake actuator assembly.

4.

CHECK HARNESS AND CONNECTOR (BRAKE ECU – BRAKE ACTUATOR)

1. Disconnect the brake ECU connector.

Display item

Test part

Control range

Diagnostic note

MOTOR RELAY 1

ABS motor relay

Relay ON/OFF

Operate sound of relay (clicking 
sound) and motor can be heard.

MOTOR RELAY 2

ABS motor relay 2

Relay ON/OFF

Operate sound of relay (clicking 
sound) and motor can be heard.

Brake actuator

Condition

Specified condition

Connector

Terminal

E91

32 – 2

Always

Below 10 

E91

31 – 2

Always

Below 10 

E91

31 – 32

Always

Below 1 

E91

1 – 2

Always

Below 1 

E91

32 – 3

Always

450 to 550 

E91

31 – 3

Always

450 to 550 

JSFIA0352GB

 

 

 

 

 

 

 

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