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Home >> Audi >> 2004 >> A4 Quattro, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Ignition System >> 3.0L - Engine Controls - Fuel Injection & Ignition, Engine Code(S): AVK, BGN >> 01 On Board Diagnostic (OBD) >> Readiness code >> Reading readiness code

Reading readiness code

Test sequence 

Fig 1: Diagnostic System VAS 5051: Display
GW00006284Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS5051:

Fig 2: Diagnostic System VAS 5051: Display
GW00006285Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS5051:

1 - Enter display group

Fig 3: Diagnostic System VAS 5051: Display
GW00006286Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS5051:

  Display zones 
  1 2 3 4
Display group 086: Readiness code 
Display  0 0 0 0 0 0 0 0  X X X X X X X X X X X X X X X X X X X X X X X X 
Display  Ready bits 
Completed tests 
Individual tests performed Individual tests performed Individual tests performed
Range  1 = not completed 
0 = completed 
1 = not completed
0 = completed
1 = not completed
0 = completed
1 = not completed
0 = completed
Specified value  0 0 0 0 0 0 0 0  X X X X X X X X X X X X X X X X X X X X X X X X
Explanation of readiness code. Refer to Reading readiness code 

Note on display zone 1: 

Display zone 1 is the most important. This display indicates which system has been checked by the On Board Diagnostic (OBD) since the last time the DTC memory was erased or since installation of a new control module. After erasing the DTC memory, all testable values are set to "1" and then to "0" after successful completion of the test. 

X  X  X  X  X  X  X  X  Notes on display group 086, display zone 1
                Catalytic converter diagnosis
  • Display 0 = Test was carried out
  • Display 1 = Test was not carried out (produce readiness code. Refer to Readiness code, generating 
                Display always 0 
                Evaporative Emission (EVAP) system 
  • Display 0 = Test was carried out
  • Display 1 = Test was not carried out (produce readiness code. Refer to Readiness code, generating )
                Secondary air system 
  • Display 0 = Test was carried out
  • Display 1 = Test was not carried out (produce readiness code. Refer to Readiness code, generating )
                Display always 0 
                Oxygen sensors 
  • Display 0 = Test was carried out
  • Display 1 = Test was not carried out (produce readiness code. Refer to Readiness code, generating )
                Oxygen sensor heating 
  • Display 0 = Test was carried out
  • Display 1 = Test was not carried out (produce readiness code. Refer to Readiness code, generating )
                Display always 0 
NOTE: The readiness code is only produced when all display digits in display zone 1 are set to "0".

If the specification "0 0 0 0 0 0 0 0" is achieved in display zone 1:

If specified value is not obtained: