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
Starter Relay
- Remove starter relay. Measure resistance between starter relay terminal No. 2 and 1, 3, 4 and 5. See Fig 1 . If resistance is 5 ohms or less between starter relay terminal No. 2 and any other terminals, replace relay. If all resistances are more than 5 ohms, go to next step.
- Using a jumper wire, connect between positive battery terminal and starter relay terminal No. 3. Using a test light, check for voltage at starter relay terminal No. 4. If voltage is present, go to next step. If voltage is not present, replace relay.
- Using 3 jumper wires, connect one jumper between positive battery terminal and starter relay terminal No. 1. Connect another jumper wire between positive battery terminal and starter relay terminal No. 3. Connect the last jumper wire between negative battery terminal and starter relay terminal No. 2. Using a test light, check for voltage at relay terminal No. 4. If battery voltage is present, replace relay. If battery voltage is not present, using a test light, check for voltage at starter relay terminal No. 5. If battery voltage is not present, replace relay. If battery voltage is present, relay is okay.
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.