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DTC P0123: THROTTLE POSITION (TP) SENSOR HIGH VOLTAGE INPUT Honda CR-V I

Testing & Diagnostics ~204 words
  1. Start engine and run at 3000 RPM with no loads and transmission in Park or Neutral, until radiator fan comes on. Turn ignition off. Turn ignition on. Check TP sensor using scan tool. If reading is not approximately 10% with throttle fully closed and 90% with throttle fully opened, go to next step. If reading is as specified, problem is intermittent. System is okay at this time. Check for poor connections or loose wires at TP sensor connector and PCM connector. See the «WIRING DIAGRAMS»(ref-16319) article.
  2. Turn ignition off. Disconnect TP sensor 3-pin connector. Turn ignition on. Measure voltage between TP sensor wiring harness connector terminals No. 1 and No. 3. (Схема №5) If reading is not approximately 5 volts, go to next step. If reading is approximately 5 volts, replace throttle body (TP sensor is not serviced separately).
  3. Measure voltage between PCM connector "D" terminal D10 and terminal D11. (Схема №2) If reading is approximately 5 volts, repair open in wire between PCM connector and TP sensor. See the «WIRING DIAGRAMS»(ref-16319) article. If reading is not approximately 5 volts, substitute a known-good PCM and recheck. If symptom or indication goes away, replace original PCM.

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