Nissan Sentra manuals

Nissan Sentra Service Manual: Diagnosis system [abs actuator and electric unit (control unit)]

Nissan Sentra Service Manual / Brakes / Brake control system / System description / Diagnosis system [abs actuator and electric unit (control unit)]

CONSULT Function (ABS)

FUNCTION

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

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.
Work support The settings for ABS actuator and electric unit (control unit) functions can be changed.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication is displayed.

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, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp turn OFF.

CAUTION:

If memory cannot be erased, perform applicable diagnosis.

NOTE:

Display Item List

Refer to BRC-43, "DTC Index".

DATA MONITOR





×: Applicable


×: Applicable

–: Not applicable

ACTIVE TEST

The active test is used to determine and identify details of a malfunction, based on self-diagnosis test results and data obtained in the DATA MONITOR. In response to instructions from CONSULT, instead of those from ABS actuator and electric unit (control unit) on the vehicle, a drive signal is sent to the actuator to check its operation.

CAUTION:

NOTE:

ABS IN Valve and ABS OUT Valve

When “Up”, “Keep” or “Down” is selected on display screen, the following items are displayed when system is normal.

*: Immediately after being selected, status is “On”. Status


*: Immediately after being selected, status is “On”. Status changes to “Off” after approx. 2 seconds.

ABS IN Valve (ACT) and ABS OUT Valve (ACT)

When “Up”, “ACT UP” or “ACT KEEP” is selected on display screen, the following items are displayed when system is normal.

*: Immediately after being selected, status is “On”. Status


*: Immediately after being selected, status is “On”. Status changes to “Off” after approx. 10 seconds.

ABS Motor

When “On” or “Off” is selected on display screen, the following items are displayed when system is normal.

NOTE:


NOTE:

Display occasionally changes On/Off for a moment after ignition switch is turned ON. This is an operation for checking purposes and is not a malfunction.

WORK SUPPORT

Conditions

Description

ST ANGLE SENSOR ADJUSTMENT Steering angle sensor neutral position adjustment can be performed.

Refer to BRC-54, "Work Procedure".

System
VDC/TCS/ABS VDC/TCS/ABS : System Diagram VDC/TCS/ABS : System Description The system switches fluid pressure of each brake caliper and each wheel cylinder to increase, to hold, or to ...

Ecu diagnosis information
Abs actuator and electric unit (control unit) Reference Value VALUES ON THE DIAGNOSIS TOOL CAUTION: The display shows the control unit calculation data, so a normal value might be displayed ev ...

Other materials:

The parking brake release warning continues displaying, or does not display
Description The parking brake warning is displayed while driving the vehicle even though the parking brake is released. The parking brake warning is not displayed while driving the vehicle even though the parking brake is applied. Diagnosis procedure 1.Check parking brake warning l ...

Bluetooth® settings
To access and adjust the settings for the Bluetooth® Hands-Free Phone System: Press the SETTING button. Use the TUNE/SCROLL knob to select “Bluetooth” and then press the ENTER button: Bluetooth Select “On” or “Off” to turn the vehicle’s Bluetooth® system on or ...

Manual transmission (if so equipped)
The ignition switch includes a device that helps prevent accidental removal of the key while driving. The key can only be removed when the ignition switch is in the LOCK position. On manual transmission models, to turn the ignition key to LOCK position from ACC or ON position, turn the ...

© 2014-2025 Copyright www.nisentra.com