Determine type of brake caliper installed on front axle of vehicle.
The illustration shows the brake type FN3 made by Teves/Ate (recognized by: clip on brake pad carrier).

Fig 1: Identifying Brake Type FN3
Courtesy of AUDI OF AMERICA, INC.

The illustration shows the brake type HP2 made by Lucas (recognized by: double-piston brake caliper).
Connect VAS5051 tester or VAG1551 scan tool and select the address word 03 "Brake Electronics". See VAG1551 SCAN TOOL (ST), CONNECTING AND ENTERING ADDRESS WORD .

Fig 2: Identifying Brake Type HP2
Courtesy of AUDI OF AMERICA, INC.

Indicated on display

Fig 3: VAG 1551 Scan Tool Display - Code Control Module, Bosch 5.3 With ESP (Select Function)

Courtesy of AUDI OF AMERICA, INC.

Press buttons -1- and -1- to select "Login Procedure" function 11.

Indicated on display

Fig 4: VAG 1551 Scan Tool Display - Code Control Module, Bosch 5.3 With ESP (Login Procedure)

Courtesy of AUDI OF AMERICA, INC.

Press the -Q- button to confirm input.

Indicated on display

Fig 5: VAG 1551 Scan Tool Display - Code Control Module, Bosch 5.3 With ESP (Input Code Number)

Courtesy of AUDI OF AMERICA, INC.

Enter code according to the following table and press -Q- button to confirm input.

Type of brake caliper on front axle	Login code
FN3 Teves/Ate	05397
HP2 double-piston brake caliper	05497

Indicated on display

Fig 6: VAG 1551 Scan Tool Display - Code Control Module, Bosch 5.3 With ESP (Select Function)

Courtesy of AUDI OF AMERICA, INC.

Press -0- and -7- buttons to select "Code Control Module" function 07 and press -Q- button to confirm input.

Indicated on display

Fig 7: VAG 1551 Scan Tool Display - Code Control Module, Bosch 5.3 With ESP (07 - Code Control Module)

Courtesy of AUDI OF AMERICA, INC.

Confirm input using the -Q- button.

Indicated on display

Fig 8: VAG 1551 Scan Tool Display - Code Control Module, Bosch 5.3 With ESP (Input Code Number)

Courtesy of AUDI OF AMERICA, INC.

Enter code according to the following table and press -Q- button to confirm input.

CONTROL MODULE CODE - BOSCH 5.3 WITH ESP

Type of brake caliper on front axle	Coding
FN3 Teves/Ate	08297
HP-2 double-piston or Brembo caliper	08397

VAG1551 scan tool display indicates control module coding, for example: 4D0 907 379 D ABS/EPS front.

Fig 9: VAG 1551 Scan Tool Display - Code Control Module, Bosch 5.3 With ESP (Coding Example)

Courtesy of AUDI OF AMERICA, INC.

Press --> button.

Indicated on display

Fig 10: VAG 1551 Scan Tool Display - Code Control Module, Bosch 5.3 With ESP (Select Function)

Courtesy of AUDI OF AMERICA, INC.

Press -0- and -4- buttons to select "Basic Setting" function 04 and press -Q- button to confirm, to start zeroing procedure for steering angle sensor -G85-, display group 001, see BASIC SETTING (SCAN TOOL FUNCTION 04) .

NOTE: If the control module is coded with code 00000 or with a code that does not match the vehicle, the ABS warning light -K47- and the traction control indicator light -K86- light continuously, and the DTC01044 - "Control module incorrectly coded" is stored in the DTC memory of the control module.

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.

Safety Warning

Test sequence

Use the Manual With the Right Hardware

When to See a Mechanic

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