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Home >> Acura >> 1998 >> 2.3CL Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Circuit Tests >> Malfunction Indicator Light (Mil) >> Intermittent Symptom
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Intermittent Symptom

  1. If MIL never illuminates after ignition is turned on, check for loose ECU fuse No. 14 (15-amp on M/T or 20-amp on A/T) in underhood fuse/relay box or loose BACK-UP LIGHTS, METER LIGHTS, CLOCK, SECURITY fuse No. 1 (10-amp) in underdash fuse/relay box. Check for loose FUEL PUMP fuse No. 2 (15-amp) in underdash fuse/relay box.
  2. Check for an intermittent short in Light Green/Red wire between PCM 32-pin connector terminal No. 18 and MIL. Check for an intermittent short in Yellow/Red wire between PCM 31-pin connector terminal No. 19 and Manifold Absolute Pressure (MAP) sensor.
  3. Check for an intermittent short in Yellow/Blue wire between PCM 31-pin connector terminal No. 28 and Throttle Position (TP) sensor, EGR valve lift sensor and/or fuel tank pressure sensor. Check for properly functioning PGM-FI main relay, see PGM-FI MAIN RELAY in BASIC TESTING article.
  4. If MIL stays on or illuminates after 2 seconds, check for intermittent short in Red wire between PCM 32-pin connector terminal No. 10 and service check connector located behind right kick panel. Check for intermittent short in Light Green/Red wire between PCM 32-pin connector terminal No. 18 and MIL.
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