Readiness Code Reading

Reading Readiness Code

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required







- VAG 1551 Scan tool (or VAG 1552 vehicle system tester) with VAG 1551/3 adapter cable

NOTE: All functions which could previously be performed with VAG 1551/1552 can also be performed with the vehicle diagnostic, testing and information system VAS 5051.

Work sequence
- Connect VAG 1551 scan tool ((VAG 1552) and select Engine Control Module (ECM) with the "Address word" 01. When doing this the engine must be running at idle: (Connecting scan tool and selecting Engine Control Module (ECM)). [1][2][3]Connecting VAG 1551 Scan Tool

Indicated on display:


Rapid data transfer HELP
Select function XX


- Press buttons -1- and -5- for the function "Readiness code" and confirm entry with -Q- button.

Must appear on display when all diagnosis functions have been successfully completed:

Indicated on display:


Readiness code ->
00000000 - Test complete


- Press the -> button.
- Press buttons -0- and -6- for the function "End output" and confirm entry with the -Q- button.
- Switch off ignition.

Appears on display:


Readiness code ->
00101101 - Test not complete


One of the diagnostic checks has not run through successfully:
- Press the -> button.
- Generate readiness code.

Significance of figures in 8 digit number block, display zone 1 - Readiness code