Is the cars' computer actually able to test the components within the car?
Eg. I have a Spark Plugs warning (Yellow triangle - 500mls). Is this indicator based on the actual condition of the spark plugs or is it a purely time based method - ie the plugs have not been replaced for 5 years so the emu indicates they need replacing regardless of their condition? Are all the servicing diganostics just based on time?
Eg. I have a Spark Plugs warning (Yellow triangle - 500mls). Is this indicator based on the actual condition of the spark plugs or is it a purely time based method - ie the plugs have not been replaced for 5 years so the emu indicates they need replacing regardless of their condition? Are all the servicing diganostics just based on time?