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Home >> Honda >> 1990 >> Civic Base, 2D Hatchback >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 1.5L TBI >> Trouble Code Tests - PGM-FI >> Code 15 - Ignition Output Signal

Code 15 - Ignition Output Signal

  1. Turn off ignition. Reset ECU by removing HAZARD fuse in main fuse box for 10 seconds. Start engine. Verify if CHECK ENGINE light is on and if LED is flashing Code 15. If LED is flashing Code 15, go to next step. If LED is not flashing Code 15, problem is intermittent. Check connector at distributor and related circuits.
  2. Turn ignition off. Disconnect 2-wire connector at distributor. Turn ignition on. Measure voltage between ground and Black/Yellow wire terminal on wire harness side. If battery voltage is not present, repair open Black/Yellow wire between connector and ignition switch.
  3. If battery voltage is present, turn ignition off. Reconnect 2-wire or 6-wire connector. Connect ECU Test Harness between ECU and ECU connector. See Figure . Turn ignition on. Individually, measure voltage between negative terminal A26 and positive terminals B15 and B17.
  4. If approximately 10 volts is present, substitute a known good ECU and retest. If condition is corrected, replace original ECU. If specified voltage is not present, check for short or open in White wire between distributor and ECU terminals or B15, B17. If wires are okay, replace ignitor unit.
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