Catalytic Converter: Testing and Inspection

Catalytic Converter

NOTE:
- Do not turn the ignition switch OFF.
- When the battery negative cable is disconnected, all readiness codes are cleared.

Required condition:
Ambient temperature between 20 to 95 °F (-7 to 35 °C).

1. Connect the scan tool the DLC connector (16P).
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 approx. 10 minutes on a freeway.
4. Keep the vehicle at a steady speed between 50 to 62 mph (80 to 100 km/h) with the transmission in D5 position for 30 seconds. And then decelerate by releasing the throttle completely for at least 5 seconds.
5. Do step 4 three times. Between each procedure, close the throttle completely for 1 to 2 seconds. If the engine is stopped, go to step 3 and do the procedure again.
6. Check for the readiness code with the scan tool.