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 MANUALSHONDA1994CIVIC DX, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM/COMPONENT TESTSCOMPUTERIZED ENGINE CONTROLSENGINE CONTROL MODULE (ECM)GROUND CIRCUITS
1994 Honda Civic DX, 4D Sedan, Automatic
Ground Circuits
1994 Honda Civic DX, 4D Sedan, AutomaticSECTION Ground Circuits
- Measure resistance to ground at appropriate ECM ground terminals. See POWER & GROUND CIRCUITS TERMINAL IDENTIFICATION table. See Figure . Resistance should be zero ohms for each circuit. If resistance is not zero ohms, repair open to ground.
- Connect negative lead of DVOM to a good ground. Connect positive lead to each ground terminal. With engine running, voltmeter should indicate less than 0.1 volt. If voltage is greater than 0.1 volt, check for open, corrosion, or loose connection on ground lead.
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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.