Nissan Sentra manuals

Nissan Sentra Service Manual: Component parts

Component Parts Location


  1. ABS actuator and electric unit (control unit)

  2. IPDM E/R

  3. Brake fluid level switch

  4. Front wheel sensor LH (RH similar)

  5. Rear wheel sensor LH (RH similar)

  6. VDC OFF switch

  7. Steering angle sensor (view with steering wheel removed)

  8. Stop lamp switch

  9. Parking brake switch

  10. Combination meter

Component Description

ABS Actuator and Electric Unit (Control Unit)


ABS Actuator and Electric Unit (Control Unit)

Electric unit (control unit) is integrated with actuator and comprehensively controls VDC function, TCS function, ABS function and EBD function.

ELECTRIC UNIT (CONTROL UNIT)

ACTUATOR

The following components are integrated with ABS actuator.

Pump

Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure

Motor

Activates the pump according to signals from ABS actuator and electric unit (control unit).

Motor Relay

Operates the motor ON/OFF according to signals from ABS actuator and electric unit (control unit).

Actuator Relay (Main Relay)

Operates each valve ON/OFF according to signals from ABS actuator and electric unit (control unit).

ABS IN Valve

Switches the fluid pressure line to increase or hold according to signals from control unit.

ABS OUT Valve

Switches the fluid pressure line to increase, hold or decrease according to signals from control unit.

Cut Valve 1, Cut Valve 2

Shuts off the ordinary brake line from master cylinder, when VDC function and TCS function are activated.

Suction Valve 1, Suction Valve 2

Supplies the brake fluid from master cylinder to the pump, when VDC function and TCS function are activated.

Return Check Valve

Returns the brake fluid from brake caliper and wheel cylinder to master cylinder by bypassing orifice of each valve when brake is released.

Reservoir

Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreases when decreasing pressure of brake caliper and wheel cylinder.

Yaw rate/side/decel G sensor

Calculates the following information that affects the vehicle.

Pressure Sensor

Detects the brake fluid pressure.

Wheel Sensor and Sensor Rotor

NOTE:

Stop Lamp Switch


Stop Lamp Switch

Detects the operation status of brake pedal and transmits converted electric signal to ABS actuator and electric unit (control unit).

Steering Angle Sensor

Detects the following information and transmits steering angle signal to ABS actuator and electric unit (control unit) via CAN communication.

Brake Fluid Level Switch

Detects the brake fluid level in reservoir tank and transmits converted electric signal from combination meter to ABS actuator and electric unit (control unit) via CAN communication.

Parking Brake Switch

Detects the operation status of parking brake switch and transmits converted electric signal from combination meter to ABS actuator and electric unit (control unit) via CAN communication.

VDC OFF Switch

System description
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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 ...

Other materials:

Unit removal and installation
TRANSAXLE ASSEMBLY Exploded View Transaxle assembly Refer to INSTALLATION Removal and Installation WARNING: Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure coolant escaping from the radiator. Wrap a thick cloth around the cap. ...

Unit disassembly and assembly
Front coil spring and strut Exploded View Piston rod lock nut Strut mount insulator Strut mount bearing Bound bumper Coil spring Lower rubber seat Strut Steering knuckle Front Disassembly and Assembly DISASSEMBLY CAUTION: Do not damage the piston rod when removing comp ...

Push-button ignition switch positions
LOCK (Normal parking position): The ignition switch can only be locked in this position. The ignition switch will be unlocked when it is pushed to the ACC position while carrying the Intelligent Key or with the Intelligent Key inserted in the port. The ignition switch will lock when any d ...

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