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DTC P1298 - ELECTRICAL LOAD DETECTOR (ELD) HIGH VOLTAGE INPUT Honda Civic VI

  1. Perform PCM reset procedure. See Self Diagnostic section. Start engine and turn headlights on. If DTC P1298 is indicated, go to next step. If DTC P1298 is not indicated, problem is intermittent. System is okay at this time. Check for poor connections or loose wires between ELD and PCM connectors. See «WIRING DIAGRAMS»(ref-16355) article.
  2. Turn ignition and headlights off. Disconnect ELD 3-pin connector. Check for continuity between ground and ELD connector terminal No. 2 (Black wire). (Схема №13) If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between ELD and ground connection G402.
  3. Check for continuity between ELD connector terminal No. 3 (Green/Red wire) and PCM 16-pin connector "D" terminal D16. (Схема №4)and (Схема №13). If continuity exists, go to next step. If continuity does not exist, repair open in Green/Red wire between PCM connector and ELD. See «WIRING DIAGRAMS»(ref-16355) article.
  4. Reconnect ELD 3-pin connector. Start engine and allow it to idle. Using backprobe kit, measure voltage between PCM 32-pin connector "A" terminal A9 (Brown/Black wire) and PCM 16-pin connector "D" terminal D16 (Green/Red wire). While measuring voltage, turn headlights on low. If voltage does not decrease, replace ELD. If voltage decreases, substitute a known-good PCM and recheck. If symptom or problem goes away, replace original PCM.