Collision Avoidance Systems As Revenue Opportunities
It’s a whole new world in the collision business. After your shop
repairs a vehicle, it might look as good as new, but how about
all those electronic systems that need resetting, reinitializing
and adjusting? In the past, you may have subletted these
“non-collision” jobs to a mechanical shop. But today, with the
right information and a good scan tool, you can keep these jobs –
and the profits they generate – in house.
As you already know, every manufacturer does things differently,
so up-to-date factory procedures are essential to making sure the
system will work correctly once it leaves your shop.
Here are two short excerpts from Lexus taken from ALLDATA
Collision S3500. They concern adjusting and resetting the
collision avoidance system on a 2011 Lexus ES 350.
NOTE: These articles and diagrams are shown as
examples only. They do not include the entire procedures.
Always refer to ALLDATA Collision S3500 for safety procedures,
identification of material types, recommended refinish materials,
removal and installation procedures. Always refer to the
manufacturer for questions relating to applicable or
non-applicable warranty repair information.
Reinitializing Distance Control ECU
NOTICE: Be sure to perform the following
procedures after replacing the distance control ECU:
Turn the engine switch on (IG).
Turn the cruise control main switch on.
With the brake pedal depressed, push the cruise control main
switch to RES/ACC three times within 3 seconds. Check that the
buzzer sounds at this time. NOTICE: Do not turn the headlight dimmer
switch on at this time because the optical axis automatic
adjustment mode has already started, which may lead to an
incorrect optical axis setting. If the headlight dimmer switch
is turned on by mistake, readjust the optical axis. See:
Distance Sensor, Cruise Control > Adjustments >
Millimeter Wave Radar Sensor.
Millimeter Wave Radar Sensor Adjustment
After replacing the ECM on vehicles with the radar cruise
control system, it’s necessary to initialize the ECM so that
the ECM can recognize the radar cruise control system.
See: Engine Control Module > Removal and Replacement
After replacing the distance control ECU, it’s necessary to
initialize the distance control ECU so that the ECU can recognize
the specifications of the vehicle.
See: Cruise Control Module > Removal and Replacement
There is a limitation on radar beam axis adjustment.
Since the radar sensor is installed together with the
radiator support upper and hood lock support sub-assembly, it’s
important that the radar sensor, radiator support and other
related parts are installed properly.
When the sensor is removed from the vehicle for trouble
diagnosis or repair, it’s necessary to adjust the radar beam axis
after the operation.
CAUTION: Exposure to radio frequency emissions
is hazardous to your health. It’s hazardous to your health to be
within 20 cm (7.87 in.) of the device’s radio frequency aperture.
NOTICE: This device complies with FCC radio
frequency emission regulations.
Perform measurements on a level surface.
Make sure that no large pieces of metal are within a 10 m
(32.81 ft.) x 14 m (45.93 ft.) area in front of the vehicle. If
possible, the surrounding area should also be free of large metal
Before adjusting the radar beam axis, prepare the vehicle as
Check the tire pressure and adjust it if necessary.
Remove all excess weight from the vehicle (luggage, heavy
Check and adjust the vertical direction of the radar sensor:
Remove dust, oil and foreign matter from the radar sensor’s
Set a level on the radar sensor’s level rack.
Check that the level’s air bubble is within the red frame.
OK: Level’s air bubble is within the red frame.
If the bubble is not within the red frame, use a screwdriver to
adjust Bolt A until the air bubble is within the red frame.
HINT: The adjustable range within the level’s red frame is +/-
0.2°. The target angle is +0.2° (upward angle of 0.2°). A