Diagnostic Software for VW-Audi Group Cars

 
881 Sumneytown Pike, Lansdale PA 19446, USA

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- Readiness

Corresponds to VAG 1551/1552 function 15

The Readiness Staus is a set of 8 bits, each of which corresponds to one monitored emissions "system" in an OBD-II car. When all readiness bits show "Passed", it means that all systems have been checked and have passed the on-board tests. 

Whenever you clear DTC's or remove power from the ECU, all readiness bits will be set to "Failed or Incomplete". Most cars do not have all 8 systems, so as soon as you apply power again, the bits corresponding to systems that are not actually in the car will come up "Passed" again. 

It takes a variety of specific driving conditions to "test" all the systems. It can be done in a short time using a very specific and complicated procedure found in the On Board Diagnostic section of the Factory Repair Manual for your engine. The alternative is just to drive the car for 2-3 days.  Make sure you include at least one short highway trip, and your Readiness Bits should all read "Pass" again.

Use [Go Back] to return to the Controller Information Screen.

VCDS-Lite also Decodes Readiness bits into meaningful data on modern TDI engines (a Ross-Tech exclusive, not even the VAS-5051/5052 does this!):

Notes:

  • This function is only available on Engine Controllers that are OBD-II compliant (all 1996 and newer US-Model gasoline engines).

  • Non-US models and older TDI's may not support this function even though they are otherwise OBD-II compliant.  OBD-I did not require any "monitors". 

  • This function may not work on 12V 2.8L V6 or 3.7L V8 engines which have readiness bits stored in or near Measuring Block Group 029.


Shareware Limitation(s): 

  • None


Home 
    Products   
        VCDS-Lite   
              Online Demo / Manual
- Readiness