Home/Honda/CR-V/Honda CR-V I рестайлинг (1999-2001)/Repair manual/Testing & Diagnostics/DTC P0123: THROTTLE POSITION (TP) SENSOR HIGH VOLTAGE INPUT
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DTC P0123: THROTTLE POSITION (TP) SENSOR HIGH VOLTAGE INPUT Honda CR-V I рестайлинг

  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. Using scan tool, check throttle position. If about 10 percent with throttle fully closed and 90 percent with throttle fully opened is not indicated, go to next step. If about 10 percent with throttle fully closed and 90 percent with throttle fully opened is indicated, problem is intermittent. System is okay at this time. Check for poor connections or loose wires at TP sensor and PCM connectors. See appropriate wiring diagram in WIRING DIAGRAMS article.
  2. Turn ignition off. Disconnect TP sensor 3-pin connector. Turn ignition on. Measure voltage between TP sensor harness connector terminals No. 1 (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 throttle body (TP sensor is not serviced separately).
  3. Using backprobe set, measure voltage between PCM 31-pin connector "C" terminal No. 18 (Green/Black wire) and terminal No. 28 (Yellow/Blue wire). (Схема №3) See appropriate wiring diagram in WIRING DIAGRAMS article. If about 5.0 volts exists, repair open in Green/Black wire between PCM 31-pin connector "C" and TP sensor. See appropriate wiring diagram in WIRING DIAGRAMS article. If about 5.0 volts does not exist, substitute a known-good PCM and recheck. See SUBSTITUTING PCM in SELF-DIAGNOSTICS - INTRODUCTION article. If symptom or indication goes away, replace original PCM.