LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2002 >> Q45 >> Repair and Diagnosis >> General Information >> Computer Relearn >> Computer Relearn Procedures - Import >> HONDA >> System Readiness Test Codes >> Catalytic Converter
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Catalytic Converter

NOTE: Once procedure is started DO NOT turn ignition off. When negative battery cable is disconnected, all readiness test codes are cleared.
  1. Ensure ambient temperature is 20-95°F (-7-35°C). Connect scan tool to DLC. Start engine, and hold at 3000 RPM under no load condition with transaxle in Park or Neutral until radiator cooling fan comes on.
  2. Drive vehicle on highway/freeway for about 10 minutes without stopping. Driving speed can vary.
  3. Drive vehicle at a steady speed between 50-60 MPH with transaxle in D4 position for about 30 seconds.
  4. Repeat step  3, three times. Between each repetition, close throttle completely for 1-2 seconds. If engine is stalls or is stopped during this part of the procedure, repeat procedure starting in step  2. After procedure is complete, use scan too to check readiness code.
scientia non olet · About LEMON Manuals