Precaution for Brake System
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.
WARNING:
Since dust covering the front and rear brakes has an affect on human body, the dust must be removed with a dust collector. Never splatter the dust with an air blow gun.
- Brake fluid use refer to "RECOMMENDED FLUIDS AND LUBRICANTS ".
- Never reuse drained brake fluid.
- Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off immediately and wash with water if it gets on a painted surface. For brake component parts, never wash them with water.
- Always confirm the specified tightening torque when installing the brake pipes.
- After pressing the brake pedal more deeply or harder than normal driving, such as air bleeding, check each item of brake pedal. Adjust brake pedal if it is outside the standard value.
- Always clean with new brake fluid when cleaning the brake caliper and other components.
- Never use mineral oils such as gasoline or light oil to clean. They may damage rubber parts and cause improper operation.
- Always loosen the brake tube flare nut with a flare nut wrench.
- Tighten the brake tube flare nut to the specified torque with a crowfoot (A) and torque wrench (B).
- Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) harness connector or the 12 V battery negative terminal before performing the work.
- Check that no brake fluid leakage is present after replacing the parts.
- Burnish the brake contact surfaces after refinishing or replacing rotors, after replacing pads, or if a soft pedal occurs at very low mileage.
Courtesy of NISSAN NORTH AMERICA, INC.
- Front brake pad: Refer to "BRAKE PAD: INSPECTION AND ADJUSTMENT ".
- Front disc rotor: Refer to "DISC ROTOR: INSPECTION AND ADJUSTMENT ".
- Rear brake pad: Refer to "BRAKE PAD: INSPECTION AND ADJUSTMENT ".
- Rear disc rotor: Refer to "DISC ROTOR: INSPECTION AND ADJUSTMENT ".
- When the brake pedal is operated, an operating sound may be heard from the electrically-driven intelligent brake unit. This occurs when the electrically-driven intelligent brake unit is operating normally and is not a malfunction.
- When the brake pedal is depressed when the hybrid system is not started, the brake pedal will feel heavy and the stroke will be shorter. When the unfamiliar feeling disappears and the brake warning lamp is OFF after the brake pedal was depressed, then this is not a malfunction. When the brake warning lamp is ON, use CONSULT and perform the "BRAKE" self 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 (red) and brake system warning lamp (yellow) 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).
- 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, the 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 electrically-driven intelligent brake, VDC function, and power system, then 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.
- When a malfunction occurs in the brake power supply backup unit, the brake system warning lamp (yellow) turns ON.
- Slight vibrations are felt on the brake pedal and the operation noises occur, when hill start assist function, Rise-up & Build-up function, Active Trace Control function or Brake force distribution function [function of the ABS actuator and electric unit (control unit)] operates. This is not a malfunction because it is caused by hill start assist function, Rise-up & Build-up function, Active Trace Control function or Brake force distribution function [function of the ABS actuator and electric unit (control unit)] that is normally operated.
- The optimum performance is achieved by control for 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)], when all of brakes, suspensions and tires installed on the vehicle are the specified size and parts. Brake performance and controllability may be negatively affected when other parts than the specified are installed.
- When a radio (including wiring), antenna and antenna lead line are located near electrically-driven intelligent brake unit (control unit), a malfunction or improper operation may occur for the control of 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)].
- When the following items are replaced by other parts than genuine parts or modified, brake warning lamp (red) and brake system warning lamp (yellow) may turn ON, and the control may not operate normally for 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)].
- Suspension component parts (shock absorber, spring, bushing and others)
- Tire and wheel (other than the specified size)
- Brake component parts (brake pad, disc rotor, brake caliper and others)
- Engine component parts (ECM, muffler and others)
- Body reinforcement component parts (rollover bar, tower bar and others)
- When suspension, tire and brake related parts are excessively worn or deteriorated and the vehicle is driven, brake warning lamp (red) and brake system warning (yellow) lamp may turn ON, and the control may not operate normally for 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)].
- Brake pedal vibrates and operation sound occurs during sudden acceleration and cornering, when Rise-up & Build-up function, Active Trace Control function or Brake force distribution function [function of the ABS actuator and electric unit (control unit)] are operated. This is not a malfunction because it is caused by Rise up & Build-up function, Active Trace Control function or Brake force distribution function [function of the ABS actuator and electric unit (control unit)] that is operated normally.
- Brake warning lamp (red) and brake system warning lamp (yellow) may turn ON and Rise-up & Build-up function, Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)] may not normally operate, when driving on a special road the is extremely slanted (bank in a circuit course). This is not a malfunction if the status returns to normal for Rise-up & Build-up function, Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)] after the engine is started again. In this case, perform self-diagnosis, check self-diagnosis results, and erase memory.CAUTION: Turn the ignition switch OFF and wait 5 minutes or more after erase self-diagnosis result.
- A malfunction in yaw rate/side/decel G sensor system may be detected when the vehicle sharply turns during a spin turn, acceleration turn or drift driving while 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 OFF (VDC OFF switch is pressed and VDC OFF indicator lamp is in ON status). This is not a malfunction if the status returns to normal for Rise-up & Build-up function, Active Trace Control function and Brake force distribution function [function of the ABS actuator and electric unit (control unit)] after the engine is started again. In this case, perform self-diagnosis, check self-diagnosis results, and erase memory.CAUTION: Turn the ignition switch OFF and wait 5 minutes or more after erase self-diagnosis result.