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DTC P0118 - ENGINE COOLANT TEMPERATURE (ECT) SENSOR Honda Accord V

Testing & Diagnostics ~166 words
  1. Turn ignition on. Using scan tool, check ECT. If -4°F (-20°C) or less is not indicated, problem is intermittent. System is okay at this time. Check for poor connections or loose wires at 14-pin connector (located on right shock tower), ECT sensor connector, and ECM connector. (Схема №6)
  2. If -4°F (-20°C) or less is indicated, disconnect ECT sensor connector. Install jumper wire between ECT harness connector terminals. Using scan tool, check ECT. If -4°F (-20°C) or less is not indicated, replace ECT sensor. If -4°F (-20°C) or less is indicated, turn ignition off.
  3. Install jumper wire between ECM connector terminals D7 and D22. Turn ignition on. Using scan tool, check ECT. If -4°F (-20°C) or less is not indicated, repair open in Red/White or Green/Blue wire between ECT sensor and ECM connector terminals D7 and D22. If -4°F (-20°C) or less is indicated, substitute a known-good ECM and recheck. If symptom or indication goes away, replace original ECM.

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