Section 10 — cHaSSiS information
20
camelot 2007
Retrieving Codes Using Diagnostic Tool:
The ignition must be On to retrieve the codes.
To retrieve codes locate the ABS diagnostic
plug in the roadside front run box. Unscrew the
cap and insert the ABS diagnostic tool into the
plug. The other end of the tool will display fault
codes in the form of a light flashing in a series of
numeric sequences.
Retrieving Codes Using ECU:
If the diagnostic tool is not available, an
alternative method can be used to retrieve
system configuration codes and fault codes
displayed through the dash ABS warning light
as a series of blinked sequences. The fault codes
can be accessed by properly grounding Terminal
18 in the X1 connector found on the ABS ECU
module. The Bendix ABS ECU module is
located under the shift selector panel. On the
back of the ECU locate the black X1 connector,
pin 18. Ground pin 18 as described by inserting
a wire at the rear of the connector. Pin 18 is
located in the bottom right corner (labeled ABS
Warning).
NOTE
System configuration codes are
sequences of six blinked digits while
fault codes are sequences of two blinked
digits. Refer to an authorized Bendix
service center for a list of blink code
sequences. If grounding out is not done
correctly for a specific readout, stop
then start the procedure again.
NOTE
All blink codes are displayed by the ABS
warning light only.
The system is capable of performing
several diagnostic mode functions. After
ignition on, a two second delay must be
observed prior to grounding.
Active code retrieval:
ground 1 time.
Inactive code retrieval:
ground 2 times.
Clearing active codes:
ground 3 times.
System configuration check:
ground 4 times.
Dynamometer test mode:
ground 5 times.
Reconfigure ECU:
ground 7 times.
NOTE
Reconfigure Mode is entered by
grounding prior to “ignition on.” Once
ignition is on, stop grounding, then
ground 7 times.
ATC System:
The ATC system improves traction on
slippery or unstable road surfaces by limiting
excessive drive wheel slip. This is accomplished
two ways, limiting engine torque to the drive
wheel or engaging a brake to the spinning
drive wheel. During normal operation engine
torque is unaffected. The ATC system works in
conjunction with the ABS Electronic Control
Unit. The ECU monitors tone ring speed of the
drive wheel in relation to the other wheels. If a
speed differential occurs in the drive wheel, the
ECU enters Automatic Traction Control mode.
During an ATC event, the ECU will
automatically react to optimize traction and
safety if the motorhome encounters a slippery
road surface. Engine torque is normally reduced
to limit drive wheel slip.
NOTE
The ATC system is always active.
ATC reacts to drive wheel slip by:
Reducing engine torque to the drive
wheel if road speed is above 25 mph.
Reducing engine torque and activating
drive axle brake controls if road speed
is below 25 mph. If the brake control
activates, it remains active regardless of
road speed.
ATC Switch:
Activating the ATC switch reduces ECU
control over engine torque. Momentarily
pressing the ATC switch allows the ECU to
increase the amount of engine torque applied to
the drive wheel in an ATC event. The amount
of engine torque applied to the drive wheel will
vary with the amount of drive wheel slip versus
road speed. In an ATC event, the ECU remains
active regardless of road speed or switch
position. The light flashes slowly when the ATC
switch is activated.
090372
Summary of Contents for Camelot 2007
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Page 49: ...45 Section 2 Driving Safety Camelot 2007 Weight Record Sheet Actual Worksheet 020255b...
Page 53: ...49 Section 2 Driving Safety Camelot 2007 Weighing Procedure Worksheet 020255c...
Page 106: ...appliances 4 102 Camelot 2007 Notes...
Page 140: ...Section 5 Equipment 136 camelot 2007 Notes...
Page 155: ...151 Section 6 water systems camelot 2007 Water service center Typical Water System...
Page 156: ...Section 6 water systems 152 camelot 2007 Notes...
Page 186: ...Section 8 Electrical Systems House 182 camelot 2007 Notes...
Page 202: ...Section 9 Electrical Systems Chassis 198 camelot 2007 engine no start flow chart...
Page 244: ...Section 10 chassis information 240 camelot 2007 42 Tag Axle Models 070171i 070171j...
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