Single Pole Target Auto-Calibration (SPTAC) Camera Alignment
OVERVIEW

REQUIREMENTS

The following instructions describe how to calibrate a
Bendix® FLC-20™ Camera using the Single Pole Target
Auto-Calibration (SPTAC) procedure.

Before starting the camera calibration, verify the following
requirements:

NOTE: This process is typically required when the camera
indicates Diagnostic Trouble Codes (DTCs) 59 and/or 19.
Using SPTAC calibration is not typically associated with
mounting-related DTCs, such as the DTC 60.

Whenever re-installing or replacing a camera, the
recommended camera mounting location for the vehicle
must be used. Failure to install the camera in the correct
location can result in system Diagnostic Trouble Codes
(DTCs) being set, system performance degradation,
and/or a collision causing property damage, serious
injuries, or death.
If the camera is found to be installed incorrectly,
reinstall the camera per the instructions in the
Bendix™ AutoVue® FLC-20™ Camera Service Data Sheet
(SD-64-20124, available on B2Bendix.com), clear the
DTCs, and attempt to test drive the vehicle prior to
proceeding. ONLY PROCEED IF THE DTC RETURNS.

REQUIRED TOOLS
The following tools are required for the alignment procedure:

•

All vehicle DTCs related to the
engine, transmission, instrument
cluster, engine cruise control, and
Bendix® Antilock Braking System
(ABS), Automatic Traction Control
(ATC), or Electronic Stability
Program (ESP ®) must first be
resolved – with no DTCs present
during the vehicle operation – before
trying to resolve camera DTCs.

•

The vehicle must be parked on a
flat, level surface.

•

The camera must be properly
mounted on the windshield per the Figure 1 – Target
instructions in the Bendix® AutoVue®
FLC-20™ Camera Service Data Sheet, SD-64-20124,
available on B2Bendix.com.

•

The system air pressure must be < 100 psi.

•

The suspension must be pressurized and at the vehicle's
normal operating level when the vehicle is in motion.

•

Only one (1) target may be visible in the camera field
of view during the calibration.

•

The target must be in line with the longitudinal center
line (i.e., the hood ornament) of the vehicle and parallel
to the bumper.

•

SPTAC: Bendix Part Number K159472

•

Bendix® ACom® Diagnostic Software (2023 or newer)

•

•

Tape measure, digital tape measure, or laser range
finder

Sufficient lighting must be provided on the front of the
target and ambient lighting in the background.

•

The battery voltage must be 12 volts.

NOTE: Direct or bright light should not be visible in the
camera field of view. The camera cannot see the target
image when the background is bright.

Improper use and/or maintenance of the Bendix®
Wingman® Fusion™ Active Safety System or any of its
components can result in a collision causing property
damage, serious injuries, or death.
Be sure to read, understand, and carefully follow
the instructions in the Operator’s Manual (BW2681,
available on B2Bendix.com).

1

PROCEDURE

CAMERA CALIBRATION

1. Ensure the bottom edge of the border around the
patterned target is 35 in. + 7/16 in. (90 cm + 1 cm) above
the ground.

See Figure 3.

NOTE: The target must be on the same level surface as
the vehicle. There should be no steps, cracks, or surface
variations that would alter the height of the target.
2. Using Bendix® ACom® Diagnostic Software, perform the
SPTAC Camera Alignment procedure defined in ACom
Diagnostic Software.
3. Follow the steps in the Camera Alignment procedure to
complete the SPTAC camera alignment.

Far Target (Position B)

1. Position the SPTAC target on the center line of the vehicle
(Position B). Position B should be 1.6 times the length
of Distance A; for example, if Distance A is 203 cm (80
in.), Distance B should be 325 cm (128 in.). Measure the
distance from the camera to the SPTAC target. Record
the value as Distance B.
NOTE: Use a range finder to measure the distance.
2. Execute the SPTAC Far Target Calibration procedure
using ACom Diagnostic Software.
NOTE: Before the test, the window is gray. The window
turns green if the test is successful and red if the test is not
successful.

CAMERA CALIBRATION
Near Target (Position A)
See Figure 2.
1. Position the SPTAC target on the longitudinal center line
of the vehicle (i.e., the hood ornament) at the front bumper
of the vehicle (Position A). Measure the distance from
the camera to the SPTAC target. Record the value as
Distance A. The minimum distance for the near position
of the target is 170 cm (67 in.) from the camera.
2. Execute the SPTAC Near Target Calibration procedure
using ACom Diagnostic Software.
NOTE: Before the test, the window is gray. The window
turns green if the test is successful and red if the test is not
successful.
a. I f the SPTAC Near Target Calibration is successful,
continue to the Far Target Calibration.

a. If the SPTAC Far Target Calibration is successful,
cycle the ignition power and check for DTCs. If no
DTCs return, return the vehicle to service per the
OE or maintenance facility procedure.
b. I f the SPTAC Far Target Calibration is not successful,
reset the camera by cycling off the ignition for 30
seconds then back on. Confirm all suspension and
cab ride-height air bags are properly inflated and
the vehicle cab is in its normal operating state.
Reposition the SPTAC target within tolerances, and
repeat the Target Calibration, starting with the Near
Target Calibration procedure.
Position B - Near Target to
Far Target Placement

b. If the SPTAC Near Target Calibration is not
successful, reset the camera by cycling off the ignition
for 30 seconds then back on. Confirm all suspension
and cab ride-height air bags are properly inflated
and the vehicle cab is in its normal operating state.
Reposition the SPTAC target within tolerances, and
repeat the Near Target Calibration.
Position A Target Touching
the Bumper

Figure 3 – Position B - Far Target

35 7/16 in.
(90 cm)

Figure 2 – Position A - Near Target

2

35 7/16 in.
(90 cm)

Tolerance Description

Tolerance

Near Target to Far Target
Placement Distance

+ 1 15/16 in. (5 cm)

Lateral Position Near Target

+ 1 3/16 in. (3 cm)
from truck symmetry line

Lateral Position Far Target

+ 1 15/16 in. (5 cm)
from truck symmetry line

Target Height Floor to Bottom Pattern

+ 7/16 in. (1 cm)

Target Out of Plane Rotation
Around the Vertical Axes

+ 10 degrees

Table 1 – Target Position Tolerances

S-1709 Rev 000 © 2024 Bendix Commercial Vehicle Systems LLC, a member of Knorr-Bremse • 5/24 • All Rights Reserved