Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA1991MX-6 LX, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESANTI-LOCK BRAKE SYSTEM - EARLY
1991 Mazda MX-6 LX, Standard
Anti-Lock Brake System - Early
1991 Mazda MX-6 LX, StandardSECTION Anti-Lock Brake System - Early
- Identification
- Description
- Operation
- Brake Bleeding Procedures
- Safety Precautions
- Trouble Shooting
- Diagnosis & Testing
- Retrieving Trouble Codes
- Erasing Trouble Codes
- System Testing
- Notes
- Anti-Lock Brake System - Early
- Abs-1 (Right Front Wheel Speed Sensor, Wiring Harness & Hydraulic Unit)
- Abs-2: Left Front Wheel Speed Sensor, Wiring Harness & Hydraulic Unit
- Abs-3: Rear Wheel Speed Sensor, Wiring Harness & Hydraulic Unit
- Abs-4: Right Front Sensor Rotor
- Abs-5: Left Front Sensor Rotor
- Abs-6: Right Rear Sensor Rotor
- Abs-7: Left Rear Sensor Rotor
- Abs-8: Hydraulic Unit, Wiring Harness & Control Unit Connector
- Abs-9: Relay Box, Hydraulic Unit & Wiring Harness
- Abs-10: Relay Box, Hydraulic Unit & Wiring Harness
- Abs-11: Relay Box, Hydraulic Unit & Wiring Harness
- Abs-12: Relay Box, Hydraulic Unit & Wiring Harness
- Abs-13: Relay Box, Hydraulic Unit & Wiring Harness
- Abs-14: Relay Box, Hydraulic Unit & Wiring Harness
- Abs-15: Hydraulic Unit, Wiring Harness & Abs Control Unit
- Abs-16: Hydraulic Unit, Wiring Harness & Abs Control Unit
- Abs-17: Abs Control Unit
- Abs-18: Abs Control Unit
- Component Testing
- Anti-Lock Brake System - Early
- Anti-Lock Warning Light
- Brake Light Switch (Continuity Test)
- Control Unit (Harness Testing)
- Hydraulic Unit (Fluid Level Inspection)
- Pressure Reduction Inspection
- Proportioning Valve (Pressure Inspection)
- Relay Box (Fail Safe Relay)
- Relay Box (Motor Relay)
- Wheel Speed Sensor (Resistance Test)
- Wheel Speed Sensor Rotor (Visual Inspection)
- Anti-Lock Brake System - Early
- Removal & Installation
- Sensor Rotors
- Wheel Speed Sensor
- Torque Specifications
- Wiring Diagrams
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.