About Trouble Codes

Notes:
- Connect the VAG1551 Scan Tool (ST) and select address word 03 "Brake Electronics".
- Check the control module version and press the (arrow) button.
- Press buttons -0- and -2- to select "Check DTC Memory" function 02. Press -Q- button to confirm input.

Notes:
- Each malfunction is assigned a 5-digit Diagnostic Trouble Code (DTC). The DTC is located in the left column of the DTC table. If you have switched the printer on by pressing the "PRINT" button, the VAG1551 scan tool (ST) prints the message identifying the malfunction and the DTC. Otherwise, DTC's are not displayed by the VAG1551 scan tool.
- The contents of DTC memory remain stored unto memory is erased.
- Sporadically occurring malfunctions are identified via indication of "ISP" on the right-hand side of the display.
- Static malfunctions that cannot be detected when the vehicle is stationary are also identified with "ISP" if the ignition has been switched off and then on again.
- The DTC table includes all the DTC's that can be stored by the ABS control module -J104- and displayed and printed out by the VAS5051 tester or VAG1551 scan tool. Malfunctions are listed by DTC number.