Test condition:
Engine running.
No faults stored.
Engine temperature above 80°C.
No leaks in the exhaust system.
All electrical loads switched off.
Exhaust temperature 200-400°C.
Note:
Used to see the aging of the lambda sond (oscillation time). If it is too high, the sond is worn out.
During basic setting, the AC compressor is switched off and the carbon canister valve is closed.
The basic setting procedure may take a few minutes.
Procedure:
Start the function.
The diagnostic status field will change from ”Test off” to ”Test on”.
Test may take several minutes.
Read off the value columns diagnosis status must change from ”Test on” to "System OK / System not Ok"
If the specifications are not attained, interrogate fault memory.
Exit function.