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 MANUALSACURA1998INTEGRA RS, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGIGNITION CHECKS3.2TL & 3.5RLIGNITION CONTROL MODULE INPUT TEST
1998 Acura Integra RS, Automatic
Ignition Control Module Input Test
1998 Acura Integra RS, AutomaticSECTION Ignition Control Module Input Test
- Turn ignition off. Disconnect Ignition Control Module (ICM) 8-pin harness connector. Check for continuity between ground and ICM harness connector terminals No. 2 (Black wire) and No. 7 (Black wire). See Fig 1. If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between ICM and ground.
- Turn ignition on. Measure voltage between ground and ICM harness connector terminals No. 1 (White/Black wire), No. 3 (White/Green wire), No. 4 (White wire), No. 5 (White/Red wire), No. 6 (White/Yellow wire on 3.2TL; Red/Green wire on 3.5RL), and No. 8 (White/Blue wire).
- If battery voltage exists at all indicated terminals, replace ICM. On 3.2TL, if battery voltage does not exist at all terminals, check for a blown 30-amp fuse located in ignition coil fuse holder. On 3.5TL, if battery voltage does not exist at all terminals, check for a blown IG-COIL fuse No. 25 (30-amp) located in underdash panel fuse panel.
- On all models, if battery voltage does not exist at a specific terminal, check for open or shorted circuit between ignition coil and ICM harness connector. If circuit is okay, substitute suspect ignition coil with known-good coil.
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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.