Brakes » Brake control system (BRC) » Precautions Precaution for Brake Control
During ABS operation, the brake pedal may vibrate lightly and a
mechanical noise may be heard. This is
normal.
Just after starting vehicle, the brake pedal may vibrate or a motor
operating noise may be heard from engine
compartment. This is a normal status of operation check.
Stopping distance may be longer than that of vehicles without ABS when
vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
When an error is indicated by ABS or another warning lamp, collect all
necessary information from customer
(what symptoms are present under what conditions) and check for simple
causes before starting diagnosis.
Besides electrical system inspection, check booster operation, brake fluid
level, and fluid leaks.
If incorrect tire sizes or types are installed on the vehicle or brake
pads are not Genuine NISSAN parts, stopping
distance or steering stability may deteriorate.
If there is a radio, antenna or related wiring near control module, ABS
function may have a malfunction or
error.
If aftermarket parts (car stereo, CD player, etc.) have been installed,
check for incidents such as harness
pinches, open circuits or improper wiring.
If the following components are replaced with non-genuine components or
modified, the VDC OFF indicator
lamp and SLIP indicator lamp may turn on or the VDC system may not operate
properly. Components
related to suspension (shock absorbers, struts, springs, bushings, etc.),
tires, wheels (exclude specified
size), components related to brake system (pads, rotors, calipers, etc.),
components related to engine (muffler,
ECM, etc.), components related to body reinforcement (roll bar, tower bar,
etc.).
Driving with broken or excessively worn suspension components, tires or
brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and
the VDC system may not
operate properly.
When the TCS or VDC is activated by sudden acceleration or sudden turn,
some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.
When driving on roads which have extreme slopes (such as mountainous
roads) or high banks (such as
sharp curves on a freeway), the VDC may not operate normally, or the VDC
warning lamp and the SLIP indicator
lamp may turn on. This is not a problem if normal operation can be resumed
after restarting the engine.
Sudden turns (such as spin turns, acceleration turns), drifting, etc.
with VDC turned off may cause the yaw
rate/side/decel G sensor to indicate a problem. This is not a problem if
normal operation can be resumed
after restarting the engine.