Test 1: Check Actual Value G3/1 (O2 Sensor Downstream TWC)

Check actual value G3/1 (O2 sensor downstream TWC).

Test prerequisite
- Engine at idle speed
- At coolant temperature >80°C, start engine and maintain engine speed of 2500 1/min for about 3 minutes.

Status of relevant actual value:

- Engine speed: Communication with ECU required
- Temperature of coolant: Communication with ECU required
- O2 sensor voltage upstream of TWC: Communication with ECU required

Specified value
- O2 sensor voltage downstream of TWC: Range must drop below or raise above range 450 to 500 mV 1 times within a minute. (Engine at idle speed)

Question
Are the actual values o.k.?