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Home >> Land Rover >> 2000 >> Discovery >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - Without Codes >> OBD Drive Cycle Information >> Drive Cycles >> Drive Cycle C

Drive Cycle C

  1. Switch ignition on for 30 seconds.
  2. Ensure engine coolant temperature is less than 60°C (140°F).
  3. Start the engine and allow to idle for 2 minutes.
  4. Perform 2 light accelerations (0 to 35 mph (0 to 60 km/h) with light pedal pressure).
  5. Perform 2 medium accelerations (0 to 45 mph (0 to 70 km/h) with moderate pedal pressure).
  6. Perform 2 hard accelerations (0 to 55 mph (0 to 90 km/h) with heavy pedal pressure).
  7. Cruise at 60 mph (100 km/h) for 8 minutes.
  8. Cruise at 50 mph (80 km/h) for 3 minutes.
  9. Allow engine to idle for 3 minutes.
  10. Connect TestBook/T4 and with the engine still running, check for fault codes.
NOTE: The following areas have an associated readiness test which must be flagged as complete, before a problem resolution can be verified:
  • Catalytic converter fault.
  • Evaporative loss system fault.
  • HO2 sensor fault.
  • HO2 sensor heater fault.

When carrying out a Drive Cycle C to determine a fault in any of the above areas, select the readiness test icon to verify that the test has been flagged as complete.

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