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.

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HOMESERVICE MANUALSAUDI1999A8 QUATTROREPAIR AND DIAGNOSISSUSPENSIONWHEELS & TIRE SYSTEMON BOARD DIAGNOSTIC (OBD) - ABS/EDL/ASRELECTRONIC STABILIZATION PROGRAM (ESP)CONTROL MODULE VERSIONS (SCAN TOOL FUNCTION 01), CHECKING

1999 Audi A8 Quattro

Control module versions (scan tool function 01), checking

1999 Audi A8 QuattroSECTION Control module versions (scan tool function 01), checking

Connect VAS5051 tester or VAG1551 scan tool and select address word 03 "Brake Electronics". See VAG1551 SCAN TOOL (ST), CONNECTING AND ENTERING ADDRESS WORD .
NOTE: The following explanations refer to the use of the VAG1551 scan tool. A similar procedure is used for the VAS5051 tester for On Board Diagnostic.
Advance through program sequence by pressing --> button.

Indicated on display

Fig 1: VAG 1551 Scan Tool Display - Control Module Version Check (1 Of 2)

Courtesy of AUDI OF AMERICA, INC.

Press buttons -0- and -1- to select "Check Control Module Version" 01. Press -Q- button to confirm input.

NOTE: Refer to the parts catalog for the correct ABS Control Module (w/EDL) -J104- for the vehicle.

Indicated on display:

Fig 2: VAG 1551 Scan Tool Display - Control Module Version Check (2 Of 2)

Courtesy of AUDI OF AMERICA, INC.

ABS control module Part. No. including control module version
System designation
Hardware and software status

Fig 3: Control Module Version Codes - Bosch 5.3 With ESP
Courtesy of AUDI OF AMERICA, INC.

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.