Lane Change Assistance Control Modules -J769- / -J770-, Calibrating

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Special tools and workshop equipment required

Calibration Tool For Lane Changing AssistVAS 6350

Conditions

-- The lane change assistance control module -J769- / -J770- must be calibrated in the "Guided Fault Finding" or "Guided Functions" operating mode under the following conditions using the Vehicle Diagnostic Tester:

The lane change assistance control module -J769- or lane change assistance control module 2 -J770- was replaced.
The rear bumper was damaged.
The rear bumper was removed and installed.
The DTC "no or incorrect basic setting/adaptation" is stored in the DTC memory.

Procedure

-- Move the vehicle onto a solid, flat surface.

-- Set the parking brake - the vehicle must not move during the measuring.

-- Move the front wheels so they are pointing straight ahead - the steering wheel is in the neutral position.

-- Connect the Vehicle Diagnosis Tester.

NOTE:

If a malfunction message appears in the display, refer to the Vehicle Diagnostic Tester operating Instructions.

-- Switch ignition on.

-- Remove the label with the metal foil from the bumper cover, if necessary.

-- Secure three wheel bolt adapters for wheel bolts on each Wheel Center Sensor -VAS 6350/1-.

Fig 1: Identifying Wheel Pick-Ups On Wheel Mounting Bolts At Rear Wheels

Courtesy of AUDI OF AMERICA, LLC

-- Insert the measuring paddle on both wheel center sensors -VAS 6350/1- and secure it with the locking nut.

-- Place the -VAS 6350/1- on the wheel bolt on both rear wheels.

Wheel center sensor rotation center must be in wheel rotation center.

NOTE:

Place -VAS 6350/1- on wheels so that "anti-theft wheel bolts" are not connected with wheel center sensor.

-- Adjust measuring paddle with aid of lock nuts so that they move freely just above the floor.

The measuring paddles must move easily.
The measuring paddles must be vertical.

-- Position the Calibration ToolVAS 6350 at distance -a- to the rear wheels.

Fig 2: Positioning Calibration Device VAS 6350

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Dimension -a- = 1700 mm

-- Turn on the spacing laser VAS 6350/2 with the ON button.

Fig 3: Identifying Laser Display

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Display on VAS 6350/2:

"- - - m"

NOTE:

Laser is switched on at same time.

-- For distance measurement, hold the distance laser VAS 6350/2 -2- flush to the left stop bracket as illustrated.

Fig 4: Holding Distance Laser VAS 6350/2 Flush To Catch Bracket

Courtesy of AUDI OF AMERICA, LLC

The distance laser VAS 6350/2 lie firmly against catch bracket.

-- Make sure the "laser beam" for the distance measurement contacts the paddle on lower enlarged part -1-.

If this is not the case, measure paddle height must be corrected using lock nuts on -VAS 6350/1-.

-- Briefly press ON button for distance measurement.

Fig 5: Identifying Display On VAS 6350/2

Courtesy of AUDI OF AMERICA, LLC

Display on VAS 6350/2:

"1, 700 m" (specified value: 1, 700 +/- 2 mm).

-- Repeat the measuring procedure from the right stop bracket to the right rear wheel.

The distance value must be the same on both sides.

If both measured values are not the same, adjust VAS 6350 accordingly.

-- Select the path "calibration" after selecting "lane change assistance".

NOTE:

The version of the lane change assistance software is displayed (versions: SWA1.5 or SWA1.7).

This information for adjusting the calibration device is important for later steps in the procedure to avoid malfunctions.

-- Secure lane change assistance calibration device -VAS 6350/4- at left rear of VAS 6350 mount.

Fig 6: During Course Of Program, A Request Is Made To Switch -VAS 6350/4- From Right To Left Side Of VAS 6350

Courtesy of AUDI OF AMERICA, LLC

When installed correctly, vehicle electrical system voltage line must be connected at bottom left of calibration device (as seen in direction of travel).

Dimension -a- is measured from upper edge of calibration device to the floor.

Height Adjustment Dimension	mm
SWA 1.5	830 (32.67 in)
SWA 1.7	830 (32.67 in)

-- The indicator on the base of the lane change assistance calibration device -VAS 6350/4- must align with setting on measurement scale -1- on measuring field -arrow-.

Left Adjustment Dimension	mm
SWA 1.5	790 (31.1 in.)
SWA 1.7	790 (31.1 in.)
Read on the measuring scale -1-.

-- Connect the calibration tool for lane changing assist -VAS 6350/4- to the vehicle electrical system voltage.

-- Bring VAS 6350 into horizontal position by turning plastic base.

Fig 7: Identifying Bubble Level (Sight Glass) On Calibration Tool VAS 6350

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Observe bubble level (sight glass) on VAS 6350 -arrow-.

-- Turn on the Line laser -VAS 6350/3- on the VAS 6350.

Fig 8: Identifying Line laser -VAS 6350/3- On VAS 6350

Courtesy of AUDI OF AMERICA, LLC

-- Wear "laser protective eyewear".

-- Align the VAS 6350 so the -VAS 6350/3- strikes the center of the brand emblem on the rear lid.

-- Check left and right distance between catch bracket on VAS 6350 and measuring paddle -1- on wheel sensors again.

Fig 9: Holding Distance Laser VAS 6350/2 Flush To Catch Bracket

Courtesy of AUDI OF AMERICA, LLC

Specified value: 1, 700 ± 2 mm

Calibration procedure

The following should not occur during the calibration procedure:

No metal reflectors may be located within a 2 m (6.5 ft.) radius of the calibration device (such as tool carts, metal cabinets).
Vehicle doors must not be opened or closed.
People should not sit in the vehicle.
People should not go between the vehicle and the lane change assistance calibration device -VAS 6350/4-.

Procedure

Fig 10: Identifying Assistance Calibration Device VAS 6350/4 Components

Courtesy of AUDI OF AMERICA, LLC

-- Turn on the calibration tool for lane changing assist -VAS 6350/4- on the voltage switch -3-.

The green LED -1- must light up.

NOTE:

If the red LED -2- lights up: Check lane change assistance calibration device -VAS 6350/4-.

-- Follow the instructions in the Vehicle Diagnosis Tester display.

During the course of the program, a request is made to switch the lane change assistance calibration device -VAS 6350/4- from the left to the right side of the VAS 6350.

Fig 11: Secure -VAS 6350/4- At Rear Right Of VAS 6350 Mount

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-- Turn off the calibration tool for lane changing assist -VAS 6350/4- and remove the calibration tool.

When installed correctly, vehicle electrical system voltage line must be connected at bottom left of calibration device (as seen in direction of travel).

Dimension -a- is measured from upper edge of calibration device to the floor.

Height Adjustment Dimension	mm
SWA 1.5	830 (32.67 in)
SWA 1.7	830 (32.67 in)

-- The indicator on the base of the lane change assistance calibration device -VAS 6350/4- must align with setting on measurement scale -1- on measuring field -arrow-.

Right Adjustment Dimension	mm
SWA 1.5	790 (31.1 in.)
SWA 1.7	790 (31.1 in.)
Read on the measuring scale -1-.

-- Turn on the calibration tool for lane changing assist -VAS 6350/4- on the voltage switch -3-.

Fig 12: Identifying Assistance Calibration Device VAS 6350/4 Components

Courtesy of AUDI OF AMERICA, LLC

The green LED -1- must light up.

-- Follow the instructions in the Vehicle Diagnosis Tester display.

-- After calibrating the lane change assistance successfully, end "calibration", switch off the ignition and disconnect the diagnostic connector.