1 SD-13-4834MC-30™ CONTROLLER INTRODUCTIONThe MC-30™ controller is the Bendix antilock braking system (ABS) controller assembly intended for applicati

10Your trailer has two wheel speed sensors and two ABS modulators that are plumbed for axle control.The MC-30™ controller you have installed is curre

11 Parameter Default Settings Available Settings Rolling 500 revs/mile 300 to 700 revs/mile Radius Tone Ring 100 teeth 80, 86, 100, 120 teeth

12MC-30™ CONTROLLER DIAGNOSTIC DISPLAYThe MC-30™ controller diagnostic display consists of seven red fault LEDs, one green power LED and an internal m

13Display MC-30™ Controller Confi gurationTo check the ECU confi guration, apply ignition power. Apply and release the brake pedal six times. Followin

14CHART 11 - MC-30™ CONTROLLER BLINK CODE DEFINITIONS (1 of 2)

15CHART 11 - MC-30™ CONTROLLER BLINK CODE DEFINITIONS (2 of 2)

16READ/WRITE (SCRATCHPAD) FUNCTIONUsing the Bendix ABS diagnostic software, OEM and fl eet service records can be permanently stored in the EC-30™ cont

17tubing, hose, fi ttings, etc. must be of equivalent size, type and strength as original equipment and be designed specifi cally for such applications

18REINSTALLATION OF THE MC-30™ CONTROLLER OR M-30T™ MODULATOR-VALVECAUTION! All MC-30™ controller service replacement parts are initially defaulted t

19CHART 12 - MC-30™ CONTROLLER WIRING AND COMPONENT CONNECTORS ABS Component Connector Wire Wire Seal/ Terminal Terminal Terminal

2MC-30™ CONTROLLER COMPONENTSThe MC-30™ controller ABS installation consists of the following components: - EC-30T™ ABS Electronic Control Unit (ECU)

20FIGURE 16 - MC-30™ CONTROLLER ELECTRICAL SYSTEM SCHEMATIC

21FIGURE 17 - MC-30™ CONTROLLER SYSTEM APPLICATIONS (1 OF 2)2S/1M - AXLE CONTROLTrailer Chassis HarnessNOTE:Front wheel speed sensor inputs mustbe use

22FIGURE 17 - MC-30™ CONTROLLER SYSTEM APPLICATIONS (2 OF 2)4S/2M - SIDE CONTROLTrailer Chassis HarnessNOTE:For side control, MOD1 mustcontrol the rig

23FIGURE 18 - MC-30™ CONTROLLER DISASSEMBLYFIGURE 19 - EMERGENCY FUNCTION VALVE SCHEMATICThis is a piping schematiconly, not a constructiondrawing.Com

24SECTION A - POWER-UP SEQUENCE -TRAILER MOUNTED ABS INDICATOR LAMPABS Indicator Lamp at Power-UpVerify that the ABS indicator lamp stays on for 2.5 s

25SECTION B - POWER-UP SEQUENCE -DASH MOUNTED TRAILER ABS INDICATOR LAMPDash Mounted Trailer ABS Indicator Lamp at Power-UpVerify that a PLC trailer i

26SECTION C - TROUBLESHOOTING THE TRAILER MOUNTED ABS INDICATOR LAMPABS Indicator Lamp did not illuminate during the MC-30™ controller power-up sequen

27SECTION D - TROUBLESHOOTING THE DASH MOUNTED TRAILERABS INDICATOR LAMP WITH EC-30™ CONTROLLERThe dash mounted trailer ABS indicator lamp did not ill

28SECTION E - DIAGNOSTIC LED QUICK REFERENCEComparing your MC-30™ controller to the following images, identify the fault indicated by the diagnostic L

29SECTION F - TROUBLESHOOTING POWER TO THE MC-30™ CONTROLLERDue to corrosion, damage or poor termination, the wiring and/or connectors may be limiting

3This will be the case when an MC-30™ controller is installed on a powered vehicle auxiliary axle.Identifying / Measuring the PLC SignalAn MC-30™ cont

30SECTION G - TROUBLESHOOTING WHEEL SPEED SENSORS123C2 Right Front WS +A1 Right Front WS -A2 Left Front WS +A3 Left Front WS -B1 Right

31SECTION H - TROUBLESHOOTING ABS MODULATORS A B CElectrical connector on theM-30T™ modulator-valve.Make repairs to wiring or replace ABS modulator-

32BW2189 © 2006 Bendix Commercial Vehicle Systems LLC All Rights Reserved. 7/2006 Printed in U.S.A. PRODUCT REVISION / FEATURE INTRODUCTIONChart 13 d

4Auxiliary I/O ConnectorAn optional auxiliary connector provides a connection to the MC-30™ controller auxiliary feature I/O pins. The fi ve auxiliary

5ABS INDICATOR LAMPTrailer Mounted LampThe MC-30™ controller controls an ABS indicator lamp to indicate the trailer ABS status. The MC-30™ controller

6Wheel Speed Sensor AdjustmentSpeed sensors are properly adjusted by gently pushing (not striking) the sensor into the clip until it makes contact wit

7ABS OPERATIONThe MC-30™ controller uses wheel speed sensors, ABS modulator-valves and an ECU to control trailer wheels by axle or by side. By detect

8 2S/1M Axle Dolly-Axle 2S/2M Axle Side 4S/2M Axle SideSELF-CONFIGURATION / CONTROL TOGGLEWhen activated with a magnet or diagnostic tool,

9Your trailer has two wheel speed sensors and one ABS modulator that is plumbed for axle control.The MC-30™ controller you have installed is currently