The EC-30 ™ controller can be assembled on one of four different valve models. The EC-30 ™ controller can be bracket mounted to the vehicle cab or chassis as a stand alone ECU. The ABS warning lamp for EC-17 ™ and EC-16 ™ controllers, at power-up without faults, will illuminate for approximately 8 seconds and flash twice before turning off.ĬHART 1 - ECU DIFFERENCES (EC-30 ™, EC-17 ™, EC-16 ™ CONTROLLERS) The EC-30 ™ controllerABS warning lamp, at power-up without faults, will illuminate for 2.5 seconds and then turn off. The EC-30 ™ controllerABS warning lamp power-up sequence has been simplified compared to the EC-17 ™ and EC-16 ™ controllers. The EC-16 ™ controller utilizes a totally metal enclosure. However, the EC-30 ™ controller utilizes plastic mounting inserts to reduce mounting bolt corrosion, where the EC-17 ™ controller utilizes metal mounting inserts. The EC-30 ™ controller has a black plastic enclosure similar to the EC-17 ™ controller. The EC-30 ™ controller has been designed to replace the EC-17 ™ and the EC-16 ™ controllers as the standard Bendix ABS controller for OEM and aftermarket installations. The EC-30 ™ controller utilizes a 30-pin and an 18-pin wire harness to interface with ABS, ATC and vehicle system components.ĮC-30 ™ Controller Comparison to EC-16 ™ and EC-17 ™ Controllers
The design of the EC-30 ™ controller electronics is robust against radio, electromagnetic and environmental interference.Ī patented LED (light emitting diode) diagnostic display and magnetic reset switch are incorporated in the housing for simple, self-contained diagnostics. The EC-30 ™ controller electronics are contained in a nonmetallic housing and are environmentally protected by a hard epoxy potting compound.
Serial communication to engine control module (interfaces with throttle input and engine torque)
ATC modulator - Integral to the ATR (antilock/traction relay) valve assembly The EC-30 ™ controller ATC function utilizes the following additional components:
Blink code activation switch (optional) Dash mounted trailer ABS warning lamp (towing vehicles manufactured after March 1, 2001) Dash mounted tractor ABS warning lamp (relay controlled) Electro-pneumatic ABS modulator valves (4) Wheel speed sensors (4 or 6, depending on configuration) The EC-30 ™ controller ABS function utilizes the following components: įIGURE 2 - EC-30 ™ CONTROLLER WITH ATR VALVE Removing the EC-30 ™ Controller Assembly. Not sure why the factory would do this.TABLE OF CONTENTS. Each one of them had a bare stranded wire coming out and all of them were soldered to a black & white striped wire that is marked 130. I did notice 4 wires that were completely wrapped in black electrical tape. In regard to the diode, I couldnt find it although I peeled back quite a bit ofĮlectrical tape from the connector back. In fact, it seems as though I'm getting the dreaded pedal "pulsing" quite a bit more lately. No luck.ABS light is still on the whole time you're driving down the road.
I ran a ground wire from the ECBM housing to body ground. If I was getting that, I'd try just adding a ground wire right at the EBCM mount but 4.4 ohms should not bother it. Connector is shown in figure 5E1-16 See also "system diagnosis chart B "Anti-Lock" Lamp on and no abs codes present. If you have a resistive ground things will be wonky. Pin 1 on the EBCM connector is to ground. Oh, and by the way.why does everybody (including the manual) say the ABS light is AMBER? It is not!!!!! It is green dang it! How can there be no codes yet have an ABS light? That's pretty weird that all of a sudden there are no trouble codes!įunny thing is.my ABS light still does the same thing it's always done:Ī) start the car (no ABS light) step on brake (ABS light comes on and stays on all the time from that point on)
(for the pinouts the manual said to check) Anyways, after this I reset the ECBM, took it for a short drive (over 40 mph) and re-read the codes. Recently I had been getting a code 13 and 22 but I heard 13 doesnt exist! So.I focused on the known code (22) and verified that I do Been trying to get that dang ABS light off for 2 years now.Īs I previously mentioned in another thread I had been getting randomīrake failure (and I do mean random) so I have not been driving it.Īs I have time I try to get in there and take a few cracks at it.