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DTC P1498 - EGR VALVE LIFT SENSOR HIGH VOLTAGE Honda Prelude V

Testing & Diagnostics ~188 words
  1. Perform PCM reset procedure. See «TESTS W/CODES - INTRODUCTION»(ref-16345) article. Turn ignition on. If DTC P1498 is indicated, go to next step. If DTC P1498 is not indicated, problem is intermittent. System is okay at this time. Check for poor connections or loose wires between EGR valve lift sensor harness connector and PCM connector. See «WIRING DIAGRAMS»(ref-16355) article.
  2. Turn ignition off. Disconnect EGR valve lift sensor 3-pin connector. Turn ignition on. Measure voltage between EGR valve lift sensor 3-pin harness connector terminals No. 2 (Green/Black wire) and No. 3 (Yellow/Blue wire). (Схема №6) If about 5.0 volts does not exist, go to next step. If about 5.0 volts exists, replace EGR valve.
  3. Using backprobe set, measure voltage between PCM 16-pin connector "D" terminal D10 (Yellow/Blue wire) and terminal D11 (Green/Black wire). (Схема №4) If about 5.0 volts exists, repair open in Green/Black wire between PCM connector terminal D11 and EGR valve lift sensor. See «WIRING DIAGRAMS»(ref-16355) article. If about 5.0 volts does not exist, substitute a known-good PCM and recheck. If symptom or indication goes away, replace original PCM.

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