BENDIX Wingman FLR20, Service Data

Page: 13 / 64

13
3.0 INTRODUCTION TO
TROUBLESHOOTING SECTION
FOR FLR10 RADAR SENSORS, SEE SD-61-4962.
Section Index
3.1 Troubleshooting Basics . . . . . . . . . . . . 13
3.2 Narrowing Down the Problem . . . . . . . 14-15
3.3 Overview of Possible Issues . . . . . . . . . . 16
This section introduces three initial steps to accurately
troubleshoot the Bendix
®
Wingman
®
Advanced
™
system.
We recommend reading this introductory section, as well
as the Troubleshooting/Diagnostics Section (4.0), before
performing any troubleshooting.
When diagnosing the Wingman Advanced system, a
current version of Bendix ®
ACom
®
Diagnostics software will
be required. This software is available as a free download
from www.bendix.com.
Troubleshooting Basics (3.1)
Questions Next Steps
Have the driver run the
Power-Up Self-Test.
Power-Up Self-Test
This is a self diagnostic check, to determine if the system operation is normal.
1.
2.
3.
4.
5.
Park the vehicle. Power off.
Put the key into the ignition, and turn to the “ignition power” position.
Toggle the cruise control switch at least once, and leave it in the “on” position.
Start the vehicle, but do not drive away.
Note that if the cruise control is in the “off” position, or if the vehicle is
moving, this test will not run.
The self-test will start after 15 seconds, and takes approximately fi ve (5)
seconds to complete.
(Note that other vehicle system self-tests, e.g. the ABS “chuff” test, may run
during the initial 15 seconds after ignition “on.”)
As the Wingman Advanced self-test runs, the driver should hear a short set of
beeps. The test checks the engine, transmission, and brake systems to make
sure they are communicating. In addition, depending on the vehicle, the test
may brie
fl y display a distance alert message and/or cause the Forward Vehicle
Detected icon in the instrument cluster to illuminate; this is normal.
Does the driver hear a
long warning beep?
If no problem is found and the test is passed, no additional beeps/lamps will be
displayed nor will a trouble code be set.
If the system has found an issue that will prevent it from functioning properly,
a long
warning beep will sound
to alert the driver, and a Diagnostic Trouble Code (DTC)
will be logged in the system (typically with a status indicator/dash icon illuminated).
For descriptions of all DTCs,
see Section 4.3: Diagnostic Trouble Codes.
Have the driver describe the
system behavior that they
believe shows it is not working
properly.
When diagnosing the system, especially in cases where there are no diagnostic
trouble codes logged, fi nd out which part of the system behavior appears to be
operating improperly.
See Section 3.2: Narrowing Down the Problem.
TABLE 3 - TROUBLESHOOTING BASICS
3.1 TROUBLESHOOTING BASICS
Which
radar
sensor is
installed?
The Wingman Advanced
(FLR20) system covered
in this SD sheet has a
fl at rectangular radar
sensor.
If your Wingman Advanced
system has a black “eyeball”
(FLR10) radar sensor, use
SD sheet SD-61-4962 instead
(formerly SD-13-4962.)