Catalytic Converter Codes
NOTE:
- Do not turn ignition switch off.
- When negative battery cable is disconnected, all readiness codes are cleared.
- When ECM/PCM is cleared with scan tool, all readiness codes are cleared.
Ensure ambient temperature is 20-95°F (-7-35°C).
- Connect scan tool to DLC. Start engine and hold at 3000 RPM with no load until radiator fan comes on.
- Drive vehicle for about 10 minutes, without stopping, on a highway. Speed can vary.
- With A/T in "D" position, M/T in 5th gear, drive at steady speed between 50 and 62 MPH for 30 seconds.
- Repeat step 4 three times. Between each repetition, close throttle completely for 1-2 seconds. If engine is stopped during this part of procedure, go to step 2 and start again.
- Using scan tool, check readiness codes.