Nissan Altima HL32 Hybrid. Manual - part 122

DIAGNOSIS SYSTEM (VDC/TCS/ABS CONTROL UNIT)

BRC-53

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

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YAW RATE VAL

Yaw rate value / min: 

− 128deg/

s, max: 127 deg/s

Min: 

− 128 deg/s

Max: 127 deg/s

—

STRG ANG SEN

Steering angle value / min: 

− 

3,276.8 deg, max: 3,276.7 deg

Min: 

− 3,276.8 deg

Max: 3,276.7 deg

—

MC SEN COMP 2

Master cylinder pressure sen-
sor 2 reading / min: 0 V, max: 5 
V

When brake pedal is released: 0.3 
to 0.9 V

Reading increases when 
brake pedal is depressed

STRK SEN 1

Stroke sensor / min: 0 V, max: 5 
V

When brake pedal is released: 0.7 
to 1.3 V

—

STRK SEN 2

Stroke sensor 2 / min: 0 V, max: 
5 V

When brake pedal is released: 3.7 
to 4.3 V

—

ACC PRESS SEN

Accumulator pressure sensor / 
min: 0 V, max: 5 V

Specified value: 3.3 to 4.7 V

—

FR WC PRESS 

FR wheel cylinder pressure 
sensor / min: 0 V, max: 5 V

When brake pedal is released: 0.3 
to 0.9 V

—

FL WC PRESS

FL wheel cylinder pressure sen-
sor / min: 0 V, max: 5 V

When brake pedal is released: 0.3 
to 0.9 V

—

RR WC PRESS

RR wheel cylinder pressure 
sensor / min: 0 V, max: 5 V

When brake pedal is released: 0.3 
to 0.9 V

—

RL WC PRESS

RL wheel cylinder pressure 
sensor / min: 0 V, max: 5 V

When brake pedal is released: 0.3 
to 0.9 V

—

RESERVR LV

Brake fluid level switch / ON or 
OFF

ON: Reservoir level normal
OFF: Reservoir level low

—

ELE BRK LMP

Electronically Controlled Brake 
warning lamp / ON or OFF

ON: Warning lamp ON
OFF: Warning lamp OFF

—

MTR RELAY 2

ABS motor relay No.2 / ON or 
OFF

ON: Motor relay ON
OFF: Motor relay OFF

—

MAIN RLY 1

ABS main relay No.1 / ON or 
OFF

ON: Main relay ON
OFF: Main relay OFF

—

MAIN RLY 2

ABS main relay No.2 / ON or 
OFF

ON: Main relay ON
OFF: Main relay OFF

—

SLAFR

Linear solenoid (SLAFR) cur-
rent / min: 0 A, max: 3 A

When brake pedal is released: 0 A

—

SLAFL

Linear solenoid (SLAFL) current 
/ min: 0 A, max: 3 A

When brake pedal is released: 0 A

—

SLARR

Linear solenoid (SLARR) cur-
rent / min: 0 A, max: 3 A

When brake pedal is released: 0 A

—

SLARL

Linear solenoid (SLARL) cur-
rent / min: 0 A, max: 3 A

When brake pedal is released: 0 A

—

SLRFR

Linear solenoid (SLRFR) cur-
rent / min: 0 A, max: 3 A

When brake pedal is released: 0 A

—

SLRFL

Linear solenoid (SLRFL) cur-
rent / min: 0 A, max: 3 A

When brake pedal is released: 0 A

—

SLRRR

Linear solenoid (SLRRR) cur-
rent / min: 0 A, max: 3 A

When brake pedal is released: 0 A

—

SLRRL

Linear solenoid (SLRRL) cur-
rent / min: 0 A, max: 3 A

When brake pedal is released: 0 A

—

MC SEN2 OPN

Master cylinder pressure sen-
sor 2 open detection / ERROR 
or NORMAL

ERROR: Momentary interruption
NORMAL: Normal

—

STRK SEN OPN

Stroke sensor open detection / 
ERROR or NORMAL

ERROR: Momentary interruption
NORMAL: Normal

—

Tester display

Measurement item/ Range

Normal condition

Diagnostic note

BRC-54

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

DIAGNOSIS SYSTEM (VDC/TCS/ABS CONTROL UNIT)

*: Electronically Controlled Brake

ACTIVE TEST

NOTE:

Performing the Active Test using the CONSULT-III allows the relay, actuator, and other items to operate with-

out removing any parts. Performing the Active Test as the first step in troubleshooting is one of the methods to

save labor time.

It is possible to display the Data List during the Active Test.
1. On the tester display, select the Active Test.

NOTE:

The ignition switch must be turned ON to proceed to the Active Test using the CONSULT-III.

FR WC SEN OPN

FR wheel cylinder pressure 
sensor open detection / ER-
ROR or NORMAL

ERROR: Momentary interruption
NORMAL: Normal

—

FL WC SEN OPN

FL wheel cylinder pressure sen-
sor open detection / ERROR or 
NORMAL

ERROR: Momentary interruption
NORMAL: Normal

—

RR WC SEN OPN

RR wheel cylinder pressure 
sensor open detection / ER-
ROR or NORMAL

ERROR: Momentary interruption
NORMAL: Normal

—

RL WC SEN OPN

RL wheel cylinder pressure 
sensor open detection / ER-
ROR or NORMAL

ERROR: Momentary interruption
NORMAL: Normal

—

ACC SEN OPN

Accumulator pressure sensor 
open detection / ERROR or 
NORMAL

ERROR: Momentary interruption
NORMAL: Normal

—

SMC 1

Master cut solenoid (SMC 1) / 
ON or OFF

ON: Operate
OFF: Not operate

—

SMC 2

Master cut solenoid (SMC 2) / 
ON or OFF

ON: Operate
OFF: Not operate

—

SCSS

Stroke simulator solenoid (SC-
SS) / ON or OFF

ON: Operate
OFF: Not operate

—

FR TRQ NEED

FR regenerative request torque 
/ min: 0 N·m, max: 65,536 N·m

Min: 0 N·m
Max: 65,536 N·m

—

FR TRQ ACT

FR regenerative request torque 
/ min: 0 N·m, max: 65,536 N·m

Min: 0 N·m
Max: 65,536 N·m

—

RR TRQ NEED

RR regenerative request torque 
/ min: 0 N·m, max: 65,536 N·m

Min: 0 N·m
Max: 65,536 N·m

—

RR TRQ ACT

RR regenerative request torque 
/ min: 0 N·m, max: 65,536 N·m

Min: 0 N·m
Max: 65,536 N·m

—

REGEN ALLIN

Regenerative operation / ON or 
OFF

ON: Operate
OFF: Not operate

—

STRG SEN ZERO

Steering angle sensor zero 
point / ON or OFF

ON: Valid
OFF: Invalid

—

DOOR SW

Door switch operation / ON or 
OFF

ON: Operate
OFF: Not operate

—

Tester display

Measurement item/ Range

Normal condition

Diagnostic note

Tester display

Test part

Control range

Diagnostic note

ABS WARN LAMP

ABS warning lamp

Warning lamp ON/OFF

Observe combination meter

VDC WARN LAMP

VDC warning lamp

Warning lamp ON/OFF

Observe combination meter

SLIP INDI LAMP

SLIP indictor lamp

Indicator lamp ON/OFF

Observe combination meter

BRAKE WARN LAMP

Brake warning lamp

Warning lamp ON/OFF

Observe combination meter

BRAKE BUZZER

Brake warning buzzer

Buzzer ON/OFF

Buzzer can be heard

DIAGNOSIS SYSTEM (VDC/TCS/ABS CONTROL UNIT)

BRC-55

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

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WORK SUPPORT

NOTE:

• 1: Electronically Controlled Brake warning lamp turns ON during TEST MODE.

• 2:Where TEST MODE is prolonged, be sure to exit from TEST MODE after the completion of a work.

ERASE MEMORY

How to Erase Self-diagnosis Result

ELE BRK WARN LAMP

Electronically Controlled Brake 
warning lamp

Warning lamp ON/OFF

Observe combination meter

MOTOR RELAY 1

ABS motor relay

Relay ON/OFF

Operation sound of relay (click-
ing sound) and motor can be 
heard

MOTOR RELAY 2

ABS motor relay 2

Relay ON/OFF

Operation sound of relay (click-
ing sound) and motor can be 
heard

AIR REL INHIBIT

Electronically Controlled Brake 
control invalid

Control invalid ON/OFF

Electronically Controlled Brake 
control is blocked (braking with 
no boost assist)

ACC 0 DOWN

Accumulator zero down activa-
tion

Activation ON/OFF

Brake fluid existing the accumu-
lator makes noise

AIR REL STROKE SIM

Stroke simulator cut valve pat-
tern activation

Activation ON/OFF

—

(Difficult to identify visually)

AIR REL DRAIN

Drain system sir bleeding pat-
tern activation

Activation ON/OFF

When accumulator pressure 
lowers, pump operation creates 
sound

AIR REL PWR SPLY 2

Power supply air bleeding pat-
tern activation 2

Activation ON/OFF

When accumulator pressure 
lowers, pump operation creates 
sound

SMC 1

Master cut solenoid (SMC 1)

Solenoid ON/OFF

Operation sound of solenoid 
(clicking sound) can be heard

SMC 2

Master cut solenoid (SMC 2)

Solenoid ON/OFF

Operation sound of solenoid 
(clicking sound) can be heard

MAIN RELAY 1

ABS main relay

Relay ON/OFF

Operation sound of relay (click-
ing sound) can be heard

MAIN RELAY 2

ABS main relay 2

Relay ON/OFF

Operation sound of relay (click-
ing sound) can be heard

SLRRL CLOSE

Linear solenoid (SLRRL) valve

Valve close ON/OFF

—

SLARL CLOSE

Linear solenoid (SLARL) valve

Valve close ON/OFF

—

SLRRR CLOSE

Linear solenoid (SLRFR) valve

Valve close ON/OFF

—

SLARR CLOSE

Linear solenoid (SLAFR) valve

Valve close ON/OFF

—

SLRFL CLOSE

Linear solenoid (SLRFL) valve

Valve close ON/OFF

—

SLAFL CLOSE

Linear solenoid (SLAFL) valve

Valve close ON/OFF

—

SLRFR CLOSE

Linear solenoid (SLRFR) valve

Valve close ON/OFF

—

SLAFR CLOSE

Linear solenoid (SLAFR) valve

Valve close ON/OFF

—

Tester display

Test part

Control range

Diagnostic note

Item

Function

MEMORY ERASING

When erasing stored zero value of each sensor and offset leaning value of linear solenoid valve

TEST MODE 

NOTE1

When using TEST MODE

TEST MODE EXTEN

 NOTE 2

When exiting TEST MODE

TEST MODE END

When prolonging TEST MODE

BRC-56

< FUNCTION DIAGNOSIS >

[VDC/TCS/ABS]

DIAGNOSIS SYSTEM (VDC/TCS/ABS CONTROL UNIT)

After erasing DTC memory, start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1

minute as the final inspection, and make sure that the VDC warning lamp, SLIP indicator lamp and Electroni-

cally Controlled Brake warning lamp turn OFF.

CAUTION:

If memory cannot be erased, perform applicably diagnosis.

Erase Memory

1. Select “MEMORY ERASING” in “WORK SUPPORT” to erase memory of brake ECU.

CAUTION:

• Do not touch steering wheel while erasing memory.

• When a memory is erased, stored value of zero point for each sensor and leaning value of linear

solenoid valve offset are also erased. Therefore, remember to perform zero adjustment for each sen-

sor and initialization of linear solenoid valve.

- Steering angle sensor: 

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

tion"

.

- Yaw rate/side/decel G sensor: 

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

SOR : Description"

.

- 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"

.

• VDC warning lamp turns ON when stored zero point of steering angle sensor is erased. VDC warning

lamp turns OFF after performing zero adjustment for steering angle sensor. If VDC warning lamp

does not turn OFF, perform self-diagnosis for brake ECU.