�ANTI-LOCK BRAKE SAFETY PRECAUTIONS
�1993 Nissan Sentra
GENERAL INFORMATION
Anti-Lock Brake Safety Precautions
* PLEASE READ THIS FIRST *
This article is intended for general information purposes
only. This information may not apply to all makes and models. If
vehicle is equipped with Anti-Lock Brake System (ABS), refer to
appropriate ANTI-LOCK BRAKE SYSTEM article in the BRAKES section for
description, operation, depressurizing, testing, system bleeding,
trouble shooting and servicing of specific system.
WARNING: Failure to depressurize ABS could lead to physical injury.
ANTI-LOCK BRAKE SAFETY PRECAUTIONS
WARNING: Failure to depressurize ABS could lead to physical injury.
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NEVER open a bleeder valve or loosen a hydraulic line
while ABS is pressurized.
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NEVER disconnect or reconnect any electrical connectors
while ignition is on. Damage to ABS control unit may result.
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DO NOT attempt to bleed hyudarulic system without first
referring to the appropriate ANTI-LOCK BRAKE SYSTEM article
in the BRAKES section.
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Only use specially designed brake hoses/lines on ABS equipped
vehicles.
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DO NOT tap on speed sensor components (sensor, sensor rings).
Sensor rings must be pressed into hubs, NOT hammered into
hubs. Striking these components can cause demagnetization or
a loss of polarization, affecting the accuracy of the speed
signal returning to the ABS control unit.
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DO NOT mix tire sizes. Increasing the width, as long as tires
remain close to the original diameter, is acceptable. Rolling
diameter must be identical for all 4 tires. Some
manufacturers recommend tires of the same brand, style and
type. Failure to follow this precaution may cause inaccurate
wheel speed readings.
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DO NOT contaminate speed sensor components with grease. Only
use recommended coating, when system calls for an
anti-corrosion coating.
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When speed sensor components have been removed, ALWAYS check
sensor-to-ring air gaps when applicable. These specifications
can be found in each appropriate article.
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ONLY use rocommended brake fluids. DO NOT use silicone brake
fluids in an ABS equipped vehicle.
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When instlling transmittion devices (CB’s, telephones, etc.)
on ABS equipped vehicles, DO NOT locate the antenna near the
ABS control unit (or any control unit).
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Disconnect all on-board computers, when using electric
welding equipment.
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DO NOT expose the ABS control unit to prolonged periods of
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high heat (185 F/85 C for 2 hours is generally considered a
maximum limit).