Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
ESP Diagnostic Trouble Code (DTC) memory, checking: Notes
2001 Audi A6 Avant QuattroSECTION Notes
- Make sure test requirements have been met. See REQUIREMENTS FOR TEST .
- Connect VAG 1551 scan tool and select address word 03 for "Brake electronics". See VAG 1551 SCAN TOOL, CONNECTING AND ENTERING ADDRESS WORD .
- Check the control module version. See CHECK CONTROL MODULE VERSIONS (FUNCTION 01) and Press --> button.
- Press buttons -0- and -2- to select function "Check DTC Memory" and confirm with -Q- button.
NOTE:
- Every malfunction that can be detected by the system has a 5-digit DTC, which is listed in the left-hand column of the DTC table. The message identifying the malfunction and the DTC will be printed out on the printer of VAG 1551 scan tool if the PRINT button is pressed. The malfunction does not appear on the display of VAG 1551 scan tool.
- The contents of the DTC memory remains stored until the memory is erased. See ERASING DTC MEMORY .
- Sporadically occurring malfunctions are additionally identified as such, with "ISP" appearing on the right of the display. See ON BOARD DIAGNOSTIC (OBD) FOR ABS AND ESP, GENERAL NOTES .
- Static malfunctions which cannot be detected when the vehicle is stationary are also identified with "ISP" after the ignition has been switched off and then on again.
- The following table includes all the malfunctions which can be detected by the ABS control module (w/EDL) -J104- and displayed and printed out by VAG 1551 scan tool. Malfunctions are listed according to DTC's.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.