Readiness Monitors
Readiness monitors show whether the car has finished its self-tests of emissions systems.
What is Readiness Monitors?
Typical monitors cover the catalyst, oxygen sensors, EVAP system, EGR and misfire. After clearing codes or disconnecting the battery, monitors show "not ready". Many inspection programs require most monitors to be ready. Continuous monitors such as misfire and fuel system run all the time, while non-continuous monitors such as the catalyst or EVAP system need specific conditions, for example a cold start followed by steady cruising.
How it works
Each monitor runs under specific driving conditions and reports complete when its test passes.
Why it matters for your car
Arriving at an inspection right after clearing codes usually fails. Some monitors need a long steady drive to complete.
Other terms
- Battery Passport (EU)
- C-Pillar
- Cornering Light
- Coupé
- Crown Wheel And Pinion (Ring And Pinion)
- EV Purchase Incentives
- Flat-Plane Crankshaft
- Headlight Switch
- Inline Engine (Straight Engine)
- International Driving Permit (IDP)
- Leak Detection Pump (EVAP Leak Check)
- Low Range (Reduction Gear)
- Night Vision Assist
- Part Number
- Rear Main Seal
- Stratified Charge Combustion
- Three-Phase AC Charging
- Trailer And Caravan Tyres
- Tree Sap On Paint
- Water Spots