User manual BENDIX TABS-6 TRAILER ABS MODULE

[. . . ] Bendix® TABS-6 Trailer ABS Module ECU Cover (Sealed) 3/8" NPT Control Port with Integral Filter ECU Connector Cover (Removable) Wheel Speed Sensor Connectors Through-holes for Frame (Chassis) Mounting Four (4) 3/8" NPT Delivery Ports (To Brake Chambers) Part Number Label (See Page 31) To Remove Cover Slide Lock Tab The Standard TABS6 Module uses a 5Pin Connector ECU Pin-out Label (See Page 31) The ECU Connector Varies for Standard and Premium - See Chart Integrated Modulator Relay Valve 3/4" NPT Supply Port The Premium TABS6 Module uses an 18Pin Connector FIGURE 1 - TABS-6 STAndARd And PREmIUm mOdULES INTRODUCTION The Bendix® TABS-6 module is an integrated trailer ABS controller and modulator for air-braked heavy-duty trailers, semi-trailers and dollies. The module acts as a relay valve during normal braking, but during ABS events, it will intervene to help improve stability. All modules include an Electronic Control Unit (ECU) and Modulator Relay Valve (MRV) which are integrated into a single self-contained 2S/1M (two-sensor, one modulator) trailer ABS unit. The Premium TABS-6 module is auto-configurable to control more sensors and modulators (up to 4S/3M) from its default 2S/1M. [. . . ] · Verify correct number of exciter ring teeth. · Verify that the ECU has the proper tire size settings. · Verify correct ABS configuration using blink codes or other diagnostic tools. · If needed, reset to the default ABS configuration and power-up to initiate auto-configuration. 0 Diagnostic Trouble Codes (DTCs) (continued) 1st 2nd Digit Digit 6 6 6 1 2 3 Fault Description Repair Information POWER J1587 (SID) 251 251 251 J1587 (FMI) 3 4 13 Over-voltage Low-voltage Excessive power line resistance · Power supply diagnostic trouble code. · Power supply diagnostic trouble code. · Power supply diagnostic trouble code. Go to Section F, page 28. MODULATOR (MOD) 7 7 8 9 8 9 7 8 9 8 9 1 2 1 1 2 2 3 3 3 4 4 MOD1 Hold solenoid shorted or open MOD1 Release solenoid shorted or open MOD2 Hold solenoid shorted or open MOD3 Hold solenoid shorted or open MOD2 Release solenoid shorted or open MOD3 Release solenoid shorted or open MOD1 ABS modulator dynamic error MOD2 ABS modulator dynamic error MOD3 ABS modulator dynamic error MOD2 Valve configuration error MOD3 Valve configuration error Static ABS Modulator Fault. · If faults return, replace the TABS-6 Module. 42 48 43 44 49 50 Dynamic ABS Modulator Fault. · Verify correct ABS configuration using blink codes or other diagnostic tools. · If needed, reset to the default ABS configuration and power-up to initiate auto-configuration. 7 8 9 8 9 3, 4, 5 6 or 12 3, 4, 5 6 or 12 3, 4, 5 6 or 12 3, 4, 5 6 or 12 3, 4, 5 6 or 12 3, 4, 5 6 or 12 7 7 7 13 13 COMMON 10 10 1 2 Valve MOD1/2 low-side switch shorted to ground Valve MOD3 low-side switch shorted to ground ABS modulator dynamic error - all valves Excessive ABS activity · Check for corroded/damaged wiring or connectors between the ECU and MOD. At the MOD harness connector, verify: · No continuity from modulator/AUX leads to ground. · After repairs or if no issues found, then clear faults. · If faults return, replace the TABS-6 Module. 7 9 4 4 10 10 3 4 7 1 7 7 ELECTRONIC CONTROL UNIT (ECU) 11 1 ECU internal error · Check for damaged or corroded connectors. · After repairs or if no issues found, then clear faults. · If faults return, replace the TABS-6 Module. · Verify correct ABS configuration using blink codes, PC-diagnostics or other off-board diagnostic tools. · If needed, reset to the default ABS configuration and power-up to initiate auto-configuration. 254 12 11 2 ECU configuration error 254 13 (Continued over . . ) Diagnostic Trouble Codes (DTCs) (continued) 1st 2nd Digit Digit Fault Description Repair Information J1587 DIAgNOSTIC J1587 J1587 (SID) (FMI) 12 1 J1587 diagnostics shorted or open · Check for corroded/damaged wiring or connectors between the ECU and J1587 Diagnostic. [. . . ] Static DTCs are related to wiring or component failures such as open or short circuits. Dynamic DTCs are related to abnormal wheel speed signals or behaviors. Go To Section G, page 29. ABS Modulator DTC The red M1, M2 and/or M3 LED is on to indicate a DTC with an ABS modulator. The example above shows the LEDs illuminated when there is a DTC for a second ABS modulator (MOD2). [. . . ]