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Catalytic Converter Monitor Code

NOTE:
  • Do not turn the ignition switch OFF.
  • When the battery negative cable is disconnected, all readiness codes are cleared.
  • When the ECM/PCM is cleared with the OBD II scan tool or Honda PGM Tester, all readiness codes are cleared.

Required condition: 

  1. Ambient temperature between 20-95°F (-7-35°C).
  1. Connect the scan tool to the Data Link Connector.
  2. Start the engine. Hold it at 3,000 RPM with no load (in Park or neutral) until the radiator fan comes on.
  3. Drive for about 10 minutes, without stopping, on a highway. Your speed can vary.
  4. With the A/T in D4 position or M/T in 5th gear, drive at a steady speed between 50-60 mph (80-100 km/h) for 30 seconds.
  5. Repeat step 4 three times. Between each repetition, close the throttle completely for 1-2 seconds. If the engine is stopped during this part of the procedure, repeat steps 3, 4, and 5.
  6. Check for the readiness code with the scan tool.
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