Reading readiness code

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Test sequence

Connect vehicle diagnostic, testing and information system VAS5051. Refer to Vehicle diagnostic, testing and information system VAS5051, connecting and select functions and select vehicle system "01 -Engine electronics" in selection. Engine must be running at idling speed.

Fig 1: Diagnostic System VAS 5051: Display

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS5051:

Under -1- select diagnostic function "08 - Read measured value block".

Fig 2: Diagnostic System VAS 5051: Display

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS5051:

1 - Enter display group

Enter "086" for "display group number 086" in zone -2- and confirm entry by pressing -Q- button.

Fig 3: Diagnostic System VAS 5051: Display

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS5051:

Check indication in display field -1-.

Specified value: 0 0 0 0 0 0 0 0

	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:

Press ← button.

If specified value is not obtained:

Generate readiness code. Refer to Readiness code, generating .