User guide

12
ANTILOCK LAMP LAMP ON LAMP OFF LAMP ON LAMP OFF LAMP ON
1ST TIME 1ST TIME 2ND TIME 2ND TIME STAYS ON
Traction Lamp
(EC-16
™
controller w/torque
limiting & differential braking) On Off On Off Stays Off
Traction Lamp (EC-16
™
controller w/torque limiting only) Off Off On Off Stays Off
Traction Lamp (EC-16
™
controller w/differential braking only) On Off Off Off Stays Off
IDENTIFYING THE SELF CONFIGURING EC-16
™
CONTROLLER
The self configuring EC-16
™
controller can most easily be
identified while installed on the vehicle. Identification can be
made by observing the reaction of the diagnostic display
when the ignition is switched ON and power is applied to
the EC-16
™
controller. The current configuration of the
EC-16
™
controller is displayed via the troubleshooting LEDs
and occurs during the normal self test sequence. This
configuration review is repeated each time the ignition is
turned on. The sequence and manner of LED illumination is
described in the section entitled EC-16
™
Controller
Configuration Display. That section should also be used to
confirm that the system is configured as desired.
The diagnostic LEDs on older versions of the EC-16
™
controller will only react as described in items 2 and 6 under
the section entitled EC-16
™
Controller Configuration Display.
EC-16
™
CONTROLLER CONFIGURATION
DISPLAY
1. Turn the ignition ON.
2. All LEDs will illuminate then go out.
3. The number of active sensors will be displayed by the
momentary illumination of the red SEN (sensor) LED
and two or more of the red locating LEDs. No other LEDs
will be on.
A. SEN + FRT (front) + RER (rear) = A four sensor
configuration (all systems must have at least a 4
sensor configuration)
B. SEN + FRT + MID (middle) + RER = A six sensor
configuration
4. The red TRC LED will momentarily illuminate by itself if
traction control torque limiting is active, if not, then the
display will go to the condition described in #5.
5. The red TRC and MOD LEDs will momentarily illuminate
if traction control differential braking is active, if not, then
the display will go to the condition described in #6. No
other LEDs will be on.
6. The diagnostic display will return to its normal operational
status. Assuming no problems exist in the antilock or
traction system, all red LEDs will be off and the single,
green, VLT LED is illuminated.
EC-16
™
CONTROLLER SELF CONFIGURING
PROCESS
Important General Information
1. Three aspects of the antilock and traction system are
influenced by the self configuring feature of the EC-16
™
controller.
A. Speed Sensors The number of speed sensors
connected to the EC-16
™
controller will be detected
during the self configuration process. The EC-16
™
controller will check the MID SEN (mid axle speed
sensor) locations on its connector to determine if a
sensor is connected to it and will default to a six
sensor configuration if it detects even one sensor
connected. If no mid axle speed sensor is detected,
the EC-16
™
controller will default to a four sensor
configuration.
B. Electronic Engine Control If the EC-16
™
controller
is connected to the control module of an electronic
engine, the torque limiting feature of traction control
will be activated during the self configuring process.
C. Antilock Traction Relay Valve If the solenoid
assembly in the ATR valve is connected to the
EC-16
™
controller, the differential braking feature of
traction control will be activated during the self
configuring process.
2. No method is available to disable the self configuration
feature.
3. Due to the extended period of time the magnet must be
held on the RESET to initiate the self configuration
process (20 seconds), it is unlikely that a self
configuration would occur accidentally.
4. Basic, four speed sensor, antilock operation can not be
removed during the self configuration process. This is a
minimum configuration for all EC-16
™
controllers.
5. If a speed sensor is connected to either wheel on the
mid axle the EC-16
™
controller will configure for six
sensors. If no mid axle speed sensor is detected, the
EC-16
™
controller will configure for four sensors. Any
disconnected speed sensor(s) will register as a failure
on the diagnostic display at the end of the EC-16
™
controller self test.