Catalyst Monitor not ready but no trouble codes

Maintenance/Repairs
2

Have you performed the drive cycle for the catalyst monitor?

If not, here’s the drive cycle.

  1. The Check Engine light must be off.

  2. Get the engine up full to operating temperature and shut the engine off.

3.Turn off all accessories in the vehicle.

  1. Start the engine and bring the idle speed to 1,000 RPM’s for 6-8 minutes.

  2. allow the engine to idle normally for 2 minutes.

  3. Drive the vehicle at a steady speed of 55 MPH for 10 minutes.

  4. Stop the vehicle and allow the engine to idle in drive A/T with the brake pedal applied, in neutral M/T with clutch and brake pedals applied for 2 minutes.

If the readiness monitor does not complete, repeat the above steps.

Tester