BENDIX EC-30 ABS-ATC CONTROLLER User Manual

25
SECTION F - DIAGNOSTIC LED QUICK REFERENCE
Comparing your EC-30
™
controller to the following images, identify the fault indicated by the diagnostic
LEDs and follow the instructions in the related troubleshooting section.
ABS Modulator Fault
The red MOD LED is on to indicate a fault
condition with an ABS modulator. The
example shown is a front right modulator
fault. Troubleshooting and repair are the
same for a fault on any ABS modulator.
The indicated modulator fault may be a
static or dynamic fault.
Static faults are related to wiring or
component failures, such as open or
short circuits.
Dynamic modulator faults are related to
abnormal wheel speed behaviors during
ABS.
Go to Section I.
ATC Fault
Engine Communication
Fault
The red TRC LED is on to
indicate a communication
fault between the EC-30
™
controller and the engine
controller.
Go to Section K.
ATC Modulator Fault
The red TRC and MOD LEDs
are on to indicate a static
fault condition with the ATC
modulator. Static faults are
related to wiring or
component failures such as
open or short circuits.
Go to Section J.
Power
System OK - A solid green VLT LED
indicates proper voltage is reaching the
EC-30
™
controller. If no red LEDs are on,
then no faults are detected.
If either the ABS warning lamp or ATC
active/warning lamp is on with no red
LEDs, go to Section C or D.
Voltage Out of Range - A flashing green
VLT LED indicates ECU voltage below 9.0
VDC or above 16.0 VDC. The VLT LED
will flash until power is brought into normal
range. Go to Section G.
No Voltage - When the VLT LED is off,
the EC-30
™
controller is receiving very low
or no voltage. The ECU LED may be on
in this case. Go to Section G.
Wheel Speed Sensor Fault
The red SEN LED is on to indicate a
fault condition with a wheel speed
sensor. The example shown is a front
right sensor fault. Troubleshooting and
repair are the same for a fault on any
wheel speed sensor.
The indicated sensor fault may be a static
or dynamic fault.
Static faults are related to wiring or
component failures, such as open or
short circuits.
Dynamic faults are related to abnormal
wheel speed signals or behaviors.
Go to Section H.
Magnetic Fault Reset - All LEDs will be on while a magnet is
held in place at the RESET location. If one or more LEDs do
not come on, replace the EC-30
™
controller. Do not reset fault
codes until troubleshooting of the indicated component is
complete.
ECU Fault - The red ECU LED is on to indicate a fault condition
internal to the EC-30
™
controller. Reset the EC-30
™
controller
with a magnet. If the fault returns, replace the EC-30
™
controller.
If the red ECU LED is on and the green VLT LED is off, the
EC-30
™
controller may have very low voltage.

BENDIX EC-30 ABS-ATC CONTROLLER Specifications

General

Brand	BENDIX
Model	EC-30 ABS-ATC CONTROLLER
Category	Controller
Language	English