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.
1995 Acura 2.5TLFACTORY OEM SERVICE PROCEDURE
Ignition Control Module Input Test
WARNING: This page is about a different car, the 1996 Acura 2.5TL. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Disconnect 4-pin connector from ignition control module (ICM), mounted on ignition coil. Check for continuity between terminal No. 4 and ground. See Fig 1. If continuity exists, go to next step. If continuity does not exist, repair open Black wire.
- Turn ignition on. Check voltage between terminals No. 3 and 4 at ICM harness connector. If battery voltage exists, go to next step. If battery voltage does not exist, check for open Black/Yellow wire between coil and ICM. If Black/Yellow wire is not open, substitute known-good ignition coil.
- With ignition on, check for battery voltage between terminal No. 2 and 4 at ICM harness connector. If battery voltage does not exist, check for open Green wire between coil and ICM. Repair as necessary. If Green wire is okay, substitute a known-good ignition coil and recheck.
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.