Readiness Code, Creating

NOTES:
- The engine must not be switched off during the test sequence.
- If the test sequence procedure is interrupted, or not adhered to, the readiness code will not be created.


- Check Diagnostic Trouble Code (DTC) memory. DTC Memory, Mode 3

If a malfunction is stored:
- Clear DTC memory. Clear DTC Memory, Mode 4

Test sequence:
- Switch ignition on for approx. 30 seconds.
- Start engine and run at idle.

Diagnosis: Tank venting system leak detection (runs automatically).
- Increase engine speed to 3000-3500 RPM for 90 seconds to heat up Three Way Catalytic Converter (TWC).

Diagnosis: Secondary air injection system
- Vehicle stationary.
- Run engine at idle for 40 seconds.

Diagnosis: Heated Oxygen Sensor (HO2S) aging
- Increase engine speed to 2200-3300 RPM for 3 minutes.

Diagnosis: Oxygen Sensor (O2S) control adaptation in partial load range
- Test drive for at least 13 minutes. When doing this:
- Automatic transmission: driving range 3.
- Manual transmission: 3rd gear.
- Test drive must be carried out without interruption, this means without reaching deceleration fuel cutoff or idle (closed throttle position).

Then allow the engine to run for at least 13 minutes at idle.
- Read readiness code.Readiness Code, Reading
- If the readiness code is still not OK, perform the work steps again.