Bosch Dexter Tow Assist Installation Manual page 11

1. Open configuration and select the appropriate configuration
file.
2. After file is loaded, the selection fields are grayed out to avoid
accidental changes. The Connect button is also highlighted.
Production personnel would now connect cable to OBD2
connector on trailer. The Connect button will remain highlighted
unless an ECU is connected.
3. Plug the OBD2 connector into trailer harness
4. User has option to enter 17 character VIN number in VIN field
to be written to the ECU at configuration time as shown at right
bottom. Then hit Enter or click Connect with mouse.
TOW ASSIST INSTALLATION MANUAL
ABS & SWAY MITIGATION SYSTEM
5. After Connect button clicked the program talks to the ECU and
the Tow Assist system will flash both colors on the Indicator
light while the PC is talking to Tow Assist ECU. The data in blue
appears showing the current data in the ECU. This typically will
be empty with new, out of the box ECUs. The Program Config
button is highlighted ready to write data to ECU. User hits Enter
key to configure ECU.
6. User hits Enter key to confirm Flashing (configuring/writing)
ECU. When the Enter key is hit, the ECU will be flashed.
After which the ECU will restart and the user will observe the
Indicator light flashing the green and amber alternately and the
magnets will energize. When complete the light goes out and
the system is awaiting a brake request. When the brake request
is sensed the green light will go on showing that Tow Assist is
ready and operational. Operator: Hit Enter or click Program
ECU with mouse.
7. Program will respond when ECU "flash" is complete. User hits
Enter to acknowledge.
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