Nissan Rogue (T33) 2021-Present Service Manual: System Description :: System

Nissan Rogue (T33) 2021-Present Service Manual / Brakes :: Brake System / System Description :: System

System Description

  • An Electrically-driven Intelligent Brake Unit is a booster system that generates assist force by using an internal motor to operate a piston inside the master cylinder part.

  • Control module is integrated with Electrically-driven Intelligent Brake Unit.

  • The amount of brake pedal operation is detected by the stroke sensor, and sent to the control module of the Electrically-driven Intelligent Brake Unit.

  • Based on the commands from the control module of the Electrically-driven Intelligent Brake Unit, the motor inside the Electrically-driven Intelligent Brake Unit operates and presses the piston of master cylinder part.

  • Pressing the master cylinder piston, and brake fluid is sent to the ABS actuator and electric unit (control unit).

  • CONSULT can be used to diagnose the system diagnosis.

  • When there is a malfunction in the power system of the Electrically-driven Intelligent Brake Unit (no voltage is generated), voltage is temporarily supplied to the Electrically-driven Intelligent Brake Unit from the brake power supply backup unit. At the same time, the brake warning lamp and brake system warning lamp turn ON, and the warning buzzer sounds.

  • When a malfunction occurs in the Electrically-driven Intelligent Brake Unit, the VDC function performs control (boost operation). At the same time, the brake warning lamp and brake system warning lamp turn ON.

  • When a malfunction occurs in the PDM (Power Delivery Module) and 12V battery, the braking force is determined by the force pressing on the brake pedal (no boost operation). At the same time, the brake warning lamp and the brake system warning lamp turn ON.

  • When a malfunction occurs in the brake power supply backup unit, the brake system warning lamp turn ON.

  • When a malfunction occurs in the Electrically-driven Intelligent Brake Unit and in the VDC function, the braking force is determined by the force pressing on the brake pedal (no boost operation). At the same time, the brake warning lamp and brake system warning lamp turn ON.

  • When a malfunction occurs only Electrically-driven Intelligent Brake Unit, Electrically-driven Intelligent Brake Unit transmits to ABS actuator and electric unit (control unit) that Electrically-driven Intelligent Brake Unit is malfunction state.

  • A fail-safe function is available and is activated when a system malfunction occurs. Refer to Fail-safe.

SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

Component Function
Electrically-driven Intelligent Brake Unit Refer to Component Description.
Brake power supply backup unit Refer to Component Description.
Steering angle sensor

Mainly transmits the following signal to Electrically-driven Intelligent Brake Unit via CAN communication.

  • Steering angle sensor signal
Combination meter

Mainly receives the following signals from ABS actuator electric unit (control unit) via Electrically-driven Intelligent Brake Unit via CAN communication.

  • Brake warning lamp signal

  • Brake system warning lamp signal
ABS actuator and electric unit (control unit)

Mainly transmits the following signals to Electrically-driven Intelligent Brake Unit via CAN communication.

  • ABS actuator and electric unit (control unit) control signal

  • Nissan Ariya Vehicle speed signal

  • Front LH wheel speed signal

  • Rear LH wheel speed signal

  • Front RH wheel speed signal

  • Rear RH wheel speed signal

  • Yaw rate signal

  • Side G sensor signal

  • VDC malfunction signal

  • VDC OFF signal

  • Brake fluid pressure signal

Mainly receives the following signals from Electrically-driven Intelligent Brake Unit via CAN communication.

  • Electrically-driven intelligent brake control signal

  • Brake assist request signal

  • Brake power supply backup unit operation signal

  • Brake power supply backup unit operation request signal

  • Brake warning lamp request signal

  • Brake system warning lamp request signal

  • Brake pedaling force signal
BCM

Mainly transmits the following signals to Electrically-driven Intelligent Brake Unit via CAN communication.

  • Sleep wake up signal

CONDITION FOR OPERATION OF THE WARNING LAMP AND THE WARNING BUZZER

Turns ON when Ignition switch turns ON and turns OFF when the system is normal, for bulb check.

Condition (status) Brake warning lamp (red) Brake system warning lamp (yellow) Warning buzzer
Ignition switch OFF OFF OFF OFF
For several seconds after the Ignition switch is ON ON ON OFF
Several seconds after Ignition switch ON (when the system is in normal operation) OFF OFF OFF
When the power supply to the Electrically-driven Intelligent Brake Unit is changed from the 12V battery to the brake power supply backup unit ON ON ON
Brake power supply backup unit is malfunctioning OFF ON OFF
Electrically-driven Intelligent Brake Unit is malfunctioning ON ON OFF
When brake fluid is less than the specified level (brake fluid level switch ON) ON OFF OFF

Fail-safe

  • When there is a malfunction in the power system of the Electrically-driven Intelligent Brake Unit (no voltage is generated), voltage is temporarily supplied to the Electrically-driven Intelligent Brake Unit from the brake power supply backup unit. At the same time, the brake warning lamp and brake system warning lamp turn ON and the buzzer sounds.

  • When a malfunction occurs in the Electrically-driven Intelligent Brake Unit, the VDC function performs control (boost operation).

  • When a malfunction occurs in the PDM (Power Delivery Module) and 12V battery, the braking force is determined by the force pressing on the brake pedal (no boost operation). At the same time, brake warning lamp and the brake system warning lamp turn ON.

  • When a malfunction occurs in the brake power supply backup unit, the brake system warning lamp turn ON.

  • When a malfunction occurs in the Electrically-driven Intelligent Brake Unit and in the VDC function, the braking force is determined by the force pressing on the brake pedal (no boost operation). At the same time, the brake warning lamp and brake system warning lamp turn ON.

DTC Fail-safe condition
B14E0-02 Normal control
B14E0-09
B14E0-11
B14E0-12
B14E0-13
B14E0-1C
B14E0-38
B14E0-4A
B14E0-64
B14E1-02
B14E1-09
B14E1-11
B14E1-12
B14E1-13
B14E1-1C
B14E1-38
B14E1-4A
B14E1-64
B14E2-02
B14E2-09
B14E2-11
B14E2-12
B14E2-13
B14E2-1C
B14E2-38
B14E2-4A
B14E2-64
B14E3-02
B14E3-09
B14E3-11
B14E3-12
B14E3-13
B14E3-1C
B14E3-38
B14E3-4A
B14E3-64
B14E4-64
B14E5-64 Normal control
B14E5-92
B14E6-85
B14E6-92
C18D0-01

The following functions are suspended.

  • Power supply from the brake power supply backup unit
C18D1-09
C18D2-12
C18D3-14
C18D4-14
C18D5-09
C18D6-09
C18D7-09
C18D8-09
C18D9-09
C18DA-09
C18DB-09
C18DC-09
C18DD-09
C18DE-82
C18DE-83
C18DE-87
C18E1-04 Normal control
C18E1-07

The following functions are suspended.

  • Boost function [Boost function by the ABS actuator and electric unit (control unit) is activated]
C18E1-18
C18E1-19
C18E1-49
C18E1-4B
C18E3-86
C18E4-88
C18E5-88
C18E6-49
C18E7-13 Normal control
C18E7-16 Normal control
C18E7-17
C18E7-1C
C18E9-01
C18E9-04
C18E9-44
C18E9-45
C18E9-46
C18E9-47
C18E9-48
C18E9-49
C18E9-96
C18EA-01
C18EB-01
C18EC-01

The following functions are suspended.

  • Boost function [Boost function by the ABS actuator and electric unit (control unit) is activated]
C18EC-04
C18EC-11
C18EC-12
C18EC-13
C18EC-14
C18EC-15
C18EC-1F
C18ED-04
C18EE-01
C18EE-04
C18EE-64
C18EE-87
C18EE-96
C18EF-16
C18EF-17
C18EF-96
C18F1-08
C18F3-04
C18F3-4B
C18F4-86 Normal control
C18F5-08
C18F6-08
C18F7-08 Normal control
C18F7-86
C18F8-08 Normal control
C18F8-86
C18F9-02
C18FA-44 Normal control
C18FA-46 Normal control
C18FC-18 Normal control
C18FC-19
C18FD-18
C18FD-19
C18FE-29
U1FA1-86 Normal control
U2140-87
U2143-87
U2148-87 Normal control
U214F-87 Normal control
U2240-87
U2243-87
U2248-87 Normal control
U224F-87 Normal control
U2252-87
U225B-87

Warning / Indicator / Chime List

FOR USA
Name Design Layout / Function
Brake warning lamp For layout: Refer to Design.
For function: Refer to Brake Warning Lamp.
Brake system warning lamp For layout: Refer to Design.
For function: Refer to Brake Warning Lamp.
EXCEPT FOR USA
Name Design Layout / Function
Brake warning lamp For layout: Refer to Design.
For function: Refer to Brake Warning Lamp.
Brake system warning lamp For layout: Refer to Design.
For function: Refer to Brake Warning Lamp.
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