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.
2000 Ford Focus ZX3, AutomaticFACTORY OEM SERVICE PROCEDURE
Anti-Lock Brake System
- Description & Operation
- Component Locations
- Bleeding Brake System
- Diagnosis & Testing
- Symptom Diagnosis
- Connector Identification
- Symptom Tests
- Notes
- Test 1: No Communication With Anti-Lock Control Module (ABCM)
- Test 2: No Communication With Traction Control System (TCS) Module
- Test 3: Unable To Enter Self-Test, Communication OK (Abs)
- Test 4: Brake Pedal Position Input Circuit (Abs With TCS)
- Test 5: Yellow Abs Warning Indicator Does Not Self-Check, Is Always On & No DTCS Retrieved (Abs)
- Test 6: Yellow Abs Warning Indicator Does Not Self-Check, Is Always On & No DTCS Retrieved (Abs With TCS)
- Test 7: Red Brake Warning Indicator Does Not Self-Check, Always On (Abs)
- Test 8: Traction Control Is Inoperative
- Test 9: Traction Control Switch Indicator Never/Always On
- Test 10: Traction Control System Cannot Be Disabled
- Test 11: Traction Control Indicator Does Not Self-Check
- Diagnostic Tests
- Notes
- Test A1: DTC B1676 - Battery Voltage Out Of Range (Abs)
- Test A2: DTC B1676 - Battery Voltage Out Of Range (Abs With TCS)
- Test B1: DTC C1095 - Abs Hydraulic Pump Motor Circuit Failure (Abs)
- Test B2: DTC C1095 - Abs Hydraulic Pump Motor Circuit Failure (Abs With TCS)
- Test C1: DTC C1145, C1155, C1165 & C1175 - Wheel Speed Sensor (WSS) Input Circuit Failure (Abs)
- Test C2: DTC C1145, C1155, C1165 & C1175 - Wheel Speed Sensor (WSS) Input Circuit Failure (Abs With TCS)
- Test D: DTC C1233, C1234, C1235 & C1236 - Wheel Speed Sensor (WSS) Input Signal Missing
- Test E: DTC C1267 - Abs Functions Temporarily Disabled (Abs With TCS)
- Test F: DTC C1279 - Yaw Rate Sensor Circuit Failure & DTC C1280 - Yaw Rate Sensor Signal Fault (Abs With TCS)
- Test G: DTC C1281 - Accelerometer Circuit Failure & DTC C1282 - Accelerometer Signal Fault
- Test H: DTC C1285 - Brake Booster Solenoid Output Failure
- Test I: DTC C1286 - Booster Mechanical Failure
- Test J: DTC C1287 - Booster Pedal Force Switch Circuit Failure
- Test K: DTC C1288 - Primary Brake Pressure Sensor Input Circuit Failure & DTC C1440 - Primary Brake Pressure Signal Faulted
- Test L: DTC C1289 - Secondary Brake Pressure Sensor Input Circuit Failure
- Test M: DTC C1730 - Reference Voltage Out Of Range (+5V)
- Component Tests
- Removal & Installation
- Adjustments
- Torque Specifications
- Wiring Diagrams
Factory Service Tools
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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.
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