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Nissan Note E12. Manual - part 82

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)]

BRC-19

< SYSTEM DESCRIPTION >

[ABS]

BRC

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]

CONSULT Function (ABS)

INFOID:0000000009365065

APPLICATION ITEMS

CONSULT can display each diagnostic item using the following direct diagnostic modes.

ECU IDENTIFICATION

ABS actuator and electric unit (control unit) part number is displayed.

SELF DIAGNOSTIC RESULT

Operation Procedure

1. Before performing the self-diagnosis, start engine and drive vehicle at 30 km/h (19 MPH) or more for

approximately 1 minute.

How To Erase Self Diagnostic Result

1. 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 ABS warning lamp and brake warning lamp turn

OFF.

CAUTION:

If memory cannot be erased, perform applicable diagnosis.

NOTE:

• When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp

and brake warning lamp will not turn OFF even when the system is normal, unless the vehicle is driven

at approximately 30 km/h (19 MPH) or more for approximately 1 minute.

• Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or of brake fluid

level switch operation (when brake fluid is insufficient).

Display Item List

Refer to

BRC-26, "DTC Index"

DATA MONITOR

Direct Diagnostic Mode

Description

ECU identification

The ABS actuator and electric unit (control unit) part number is displayed.

Self Diagnostic Result

The ABS actuator and electric unit (control unit) self diagnostic results are displayed.

Data Monitor

The ABS actuator and electric unit (control unit) input/output data is displayed in real time.

Active Test

The ABS actuator and electric unit (control unit) activates outputs to test components.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication is displayed.

Item

(Unit)

Data monitor item selection

Remarks

ECU INPUT

SIGNALS

MAIN

SIGNALS

SELECTION

FROM MENU

FR LH SENSOR
(km/h, mph)

Wheel speed (km/h, mph) calculated by front wheel
sensor LH signal is displayed.

FR RH SENSOR
(km/h, mph)

Wheel speed (km/h, mph) calculated by front wheel
sensor RH signal is displayed.

RR LH SENSOR
(km/h, mph)

Wheel speed (km/h, mph) calculated by rear wheel
sensor LH signal is displayed.

RR RH SENSOR
(km/h, mph)

Wheel speed (km/h, mph) calculated by rear wheel
sensor RH signal is displayed.

FR RH IN SOL
(On/Off)

–

Front RH IN ABS solenoid (On/Off) status is dis-
played.

BRC-20

< SYSTEM DESCRIPTION >

[ABS]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)]

×: Applicable
–: Not applicable

ACTIVE TEST MODE

CAUTION:

• Do not perform active test while driving vehicle.

• Make sure to completely bleed air from brake system.

• The active test cannot be performed with the ABS warning lamp or brake warning lamp on.

• ABS warning lamp and brake warning lamp turn on during active test.

NOTE:

• When active test is performed while depressing the pedal, the pedal depression amount will change. This is

normal.

• “TEST IS STOPPED” is displayed 10 seconds after operation start.

• After “TEST IS STOPPED” is displayed, to perform test again, touch BACK.

Test Item

FR RH OUT SOL
(On/Off)

–

Front RH OUT ABS solenoid (On/Off) status is dis-
played.

FR LH IN SOL
(On/Off)

–

Front LH IN ABS solenoid (On/Off) status is displayed.

FR LH OUT SOL
(On/Off)

–

Front LH OUT ABS solenoid (On/Off) status is dis-
played.

RR RH IN SOL
(On/Off)

–

Rear RH IN ABS solenoid (On/Off) status is displayed.

RR RH OUT SOL
(On/Off)

–

Rear RH OUT ABS solenoid (On/Off) status is dis-
played.

RR LH IN SOL
(On/Off)

–

Rear LH IN ABS solenoid (On/Off) status is displayed.

RR LH OUT SOL
(On/Off)

–

Rear LH OUT ABS solenoid (On/Off) status is dis-
played.

EBD WARN LAMP
(On/Off)

–

Brake warning lamp (On/Off) status is displayed.

STOP LAMP SW
(On/Off)

Stop lamp switch (On/Off) status is displayed.

MOTOR RELAY
(On/Off)

–

ABS motor relay signal (On/Off) status is displayed.

ACTUATOR RLY
(On/Off)

–

ABS actuator relay signal (On/Off) status is displayed.

ABS WARN LAMP
(On/Off)

–

ABS warning lamp (On/Off) status is displayed.

BATTERY VOLT
(V)

Voltage (V) supplied to ABS actuator and electric unit
(control unit) is displayed.

ENGINE SPEED

Engine speed status is displayed.

EBD SIGNAL
(On/Off)

–

EBD operation (On/Off) status is displayed.

ABS SIGNAL
(On/Off)

–

ABS operation (On/Off) status is displayed.

EBD FAIL SIG
(On/Off)

–

EBD fail signal (On/Off) status is displayed.

ABS FAIL SIG
(On/Off)

–

ABS fail signal (On/Off) status is displayed.

CRANKING SIG
(On/Off)

–

The input state of the key SW START position signal
is displayed.

Item

(Unit)

Data monitor item selection

Remarks

ECU INPUT

SIGNALS

MAIN

SIGNALS

SELECTION

FROM MENU

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)]

BRC-21

< SYSTEM DESCRIPTION >

[ABS]

BRC

ABS SOLENOID VALVE

• Select “Up”, “Keep” and “Down”. Then use screen monitor to check that solenoid valve operates as shown in

the table below.

*: On for 1 to 2 seconds after the select, and then Off.
NOTE:
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is an
operation for checking.

ABS MOTOR

• Select “On” and “Off”. Make sure motor relay and actuator relay operates as shown in table below.

NOTE:
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is an
operation for checking.

Test item

Display item

Display (Note)

Keep

Down

FR RH SOL

FR RH IN SOL

Off

FR RH OUT SOL

Off

On*

FR LH SOL

FR LH IN SOL

Off

FR LH OUT SOL

Off

On*

RR RH SOL

RR RH IN SOL

Off

RR RH OUT SOL

Off

On*

RR LH SOL

RR LH IN SOL

Off

RR LH OUT SOL

Off

On*

Test item

Display item

Display

Off

ABS MOTOR

MOTOR RELAY

Off

ACTUATOR RLY (Note)

BRC-22

< ECU DIAGNOSIS INFORMATION >

[ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

ECU DIAGNOSIS INFORMATION

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Reference Value

INFOID:0000000009365066

VALUES ON THE DIAGNOSIS TOOL

CAUTION:

The display shows the control unit calculation data, so a normal value might be displayed even in the

event the output circuit (harness) is open or short-circuited.

Monitor item

Display content

Data monitor

Condition

Reference value in

normal operation

FR LH SENSOR

Wheel speed

0 [km/h, mph]

Vehicle stopped

Nearly matches the speed meter display
(

± 10% or less)

Vehicle running

(Note 1)

FR RH SENSOR

Wheel speed

0 [km/h, mph]

Vehicle stopped

Nearly matches the speed meter display
(

± 10% or less)

Vehicle running

(Note 1)

RR LH SENSOR

Wheel speed

0 [km/h, mph]

Vehicle stopped

Nearly matches the speed meter display
(

± 10% or less)

Vehicle running

(Note 1)

RR RH SENSOR

Wheel speed

0 [km/h, mph]

Vehicle stopped

Nearly matches the speed meter display
(

± 10% or less)

Vehicle running

(Note 1)

FR RH IN SOL

Operation status of all solenoid valves

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)