Self-diagnosis of the brake system

Faults can be read using the VAG 1551 fault code reader. After the fault has been eliminated, it must be deleted from the fault memory.

The selection of functions using the VAG 1551 fault code reader is shown in Table 11.11.

Table 11.11. Function selection using the VAG 1551 fault code reader

Functions
00	Automatic check
01	Checking the version of the control unit
02	Fault memory interrogation
03	Final diagnostics
04	Basic settings
05	Erasing fault memory
06	Final result
07	Control unit coding
08	Reading a block of measured values