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 MANUALSHONDA1995CIVIC DX, 2D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM/COMPONENT TESTS - 1.5LCOMPUTERIZED ENGINE CONTROLSENGINE CONTROL MODULE (ECM)POWER CIRCUITS
1995 Honda Civic DX, 2D Hatchback, Automatic
Power Circuits
1995 Honda Civic DX, 2D Hatchback, AutomaticSECTION Power Circuits
- Check for battery voltage between ECM power terminal and ground. See POWER & GROUND CIRCUIT TERMINAL IDENTIFICATION . See Fig 1 . If battery voltage does not exist, check appropriate ECM fuse i n underhood fuse box. See ECM POWER CIRCUIT FUSE IDENTIFICATION . If fuse is okay, check for an open in wire between underhood fuse box and appropriate ECM power circuit terminal.
- Turn ignition on. Check for battery voltage between appropriate ECM power circuit terminal and ground. Refer to the POWER & GROUND CIRCUIT TERMINAL IDENTIFICATION
. If battery voltage does not exist, check appropriate fuse in underhood fuse box. Refer to the ECM POWER CIRCUIT FUSE IDENTIFICATION
. If fuse is okay, check for open in wire between fuse box and appropriate ECM power circuit terminal, and check for defective ignition switch.POWER & GROUND CIRCUIT TERMINAL IDENTIFICATION
Application (1) ECM Terminal Ground Circuits A23, A24, A26 & B2 Power Circuits Ignition Switch In OFF Position D1 & D12 Ignition Switch In ON Position A13, A25 & B1 (1) For terminal location, see Fig 1 . ECM POWER CIRCUIT FUSE IDENTIFICATIONApplication Fuse Ignition Switch In OFF Position BACK-UP Ignition Switch In ON Position ECM
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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.