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
Test 2: No Communication With Traction Control System (TCS) Module
- Turn ignition off. Disconnect TCS connector (C830). Turn ignition on. Using a DVOM, measure voltage between TCS terminal No. 22 (Green/Yellow wire) and ground. See WIRING DIAGRAMS . If voltage is greater than 10 volts, go to next step. If voltage is less than 10 volts, repair Green/Yellow wire.
- Turn ignition off. Measure resistance between TCS connector terminal No. 15 (Black/Yellow wire) and ground. Measure resistance between TCS connector terminal No. 32 (Black/Blue wire) and ground. If resistances are less than 5 ohms, see appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT. If resistances are greater than 5 ohms, repair faulty circuit.
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.