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Home >> Acura >> 1997 >> Integra GS-R, 2D Coupe >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - GS-R >> Circuit Tests >> DTC P0325: Knock Sensor (KS)
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DTC P0325: Knock Sensor (KS)

  1. Perform PCM reset procedure. See PCM RESET PROCEDURE/CLEARING CODES . Start engine and run at 3000 RPM with no loads and transmission in Park or Neutral until radiator fan comes on. Allow engine to idle. Increase and hold engine speed at 3000-4000 RPM with transmission in Park or Neutral for at least 10 seconds.
  2. If DTC P0325 resets, go to next step. If DTC P0325 does not reset, problem is intermittent, system is functioning properly at this time (a test drive may be necessary). Check for poor connections or loose wires between KS and PCM connectors. See the WIRING DIAGRAMS article. Repair as necessary.
  3. Turn ignition off. Disconnect KS connector. Check for continuity between ground and PCM 16-pin connector terminal No. 6 (Red/Blue wire). See Figure. If continuity does not exist, go to next step. If continuity exists, repair short in Red/Blue wire between PCM and KS. See the WIRING DIAGRAMS article.
  4. Check for continuity between PCM 16-pin connector terminal No. 6 (Red/Blue wire) and KS connector. If continuity does not exist, repair open in Red/Blue wire between PCM and KS. If continuity exists, substitute a known-good KS and recheck. If DTC P0325 does not reset, replace original KS. If DTC P0325 resets, substitute a known-good PCM and recheck. If DTC does not reset, replace original PCM.
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