System Description: System: Fail-Safe

WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.

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 (red) and brake system warning lamp (yellow) 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 DC/DC-J/B 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 (red) and the brake system warning lamp (yellow) turns ON.
When a malfunction occurs in the electrically-driven intelligent brake 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 (red) and brake system warning lamp (yellow) turn ON.
When a malfunction occurs in the brake power supply backup unit, the brake system warning lamp (yellow) turns ON.
When a malfunction occurs in the electrically-driven intelligent brake, VDC function, and power system, cooperative regenerative brake control, hill start assist function, Rise-up & Build-up function, Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)] are not performed.
Brake warning lamp (red) and brake system warning lamp (yellow) in combination meter turn ON when a malfunction occurs in system (electrically-driven intelligent brake unit). The control is suspended for cooperative regenerative brake control, hill start assist function, Rise-up & Build-up function, Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)]. The vehicle status becomes the same as models without cooperative regenerative brake control, hill start assist function, Rise-up & Build-up function, Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)].
IBA indicator lamp in combination meter turn ON when a malfunction occurs in system (ADAS control unit). The control is suspended for Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)]. The vehicle status becomes the same as models without Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)].
CAUTION: Lamp ON condition of IBA OFF indicator lamp is that IBA OFF switch is in the pressed and not turned ON status.
Mode is fixed to the mode when a malfunction occurs if CAN communication malfunction (DTC "U1000", DTC "U1010", DTC "U0424") occurs between ADAS control unit and A/C auto AMP. The mode is fixed to STANDARD mode after ignition switch turns OFF to ON.

DTC

Vehicle condition

C1A60

The following functions are suspended.

Boost operation by the electrically-driven intelligent brake
Cooperative regenerative brake control
Power supply from the brake power supply backup unit
hill start assist function
Rise-up & Build-up function
Active Trace Control function
Brake force distribution function [function of the ABS actuator and electric unit (control unit)]

C1A61

C1A62

C1A63

The following functions are suspended.

Power supply from the brake power supply backup unit
Rise-up & Build-up function

C1A64

The following functions are suspended.

Boost operation by the electrically-driven intelligent brake
Cooperative regenerative brake control
Power supply from the brake power supply backup unit
hill start assist function
Rise-up & Build-up function
Active Trace Control function
Brake force distribution function [function of the ABS actuator and electric unit (control unit)]

C1A65

C1A66

The following functions are suspended.

Cooperative regenerative brake control
hill start assist function
Rise-up & Build-up function
Active Trace Control function
Brake force distribution function [function of the ABS actuator and electric unit (control unit)]

C1A67

The following functions are suspended.

Rise-up & Build-up function

C1A68

C1A69

The following functions are suspended.

Boost operation by the electrically-driven intelligent brake
Cooperative regenerative brake control
Power supply from the brake power supply backup unit
hill start assist function
Rise-up & Build-up function
Active Trace Control function
Brake force distribution function [function of the ABS actuator and electric unit (control unit)]

C1A6A

C1A6B

The following functions are suspended.

Backup power supply from the brake power supply backup unit
Rise-up & Build-up function

C1A6C

C1A6D

C1A6E

The following functions are suspended.

Cooperative regenerative brake control
hill start assist function

C1A6F

The following functions are suspended.

hill start assist function

C1A70

The following functions are suspended.

Cooperative regenerative brake control
hill start assist function
Rise-up & Build-up function
Active Trace Control function
Brake force distribution function [function of the ABS actuator and electric unit (control unit)]

C1A71

Normal control

C1A74

The following functions are suspended.

Cooperative regenerative brake control

U1000

The following functions are suspended.

Cooperative regenerative brake control
hill start assist function
Rise-up & Build-up function
Active Trace Control function
Brake force distribution function [function of the ABS actuator and electric unit (control unit)]

U1010

U0424⁽¹⁾

Mode is fixed to the mode when a malfunction of drive mode selector occurs. The mode is fixed to STANDARD mode after ignition switch turns OFF to ON.

U1510

The following functions are suspended.

Rise-up & Build-up function

U1511

⁽¹⁾	This is DTC that is detected in ADAS control unit side.