BENDIX EC-60 ABS-ATC STD-PREM CONTROLLERS manual Miscellaneous Troubleshooting, ABS Indicator Lamp

Page 27

Miscellaneous Troubleshooting

For all tests below, take all measurements at ECU harness connector pins in order to check wire harness and sensor. Probe the connector carefully so that the terminals are not damaged.

Stop Lamp Switch Test

1.With the service brake applied, measure the system voltage (9 to 17 VDC) stop lamp switch input to ECU.

TestMeasurement

Stop Lamp Switch to Ground 9 to 17 VDC

2.Apply and release service brake, does lamp extinguish?

3.Verify brake lamp switch is connected to ECU via hard wire or J1939.

4.With service brake released, check for presence of stop lamp bulb.

Dynamometer Test Mode (ATC Indicator Lamp Continuously Illuminated)

1.Clear the dynamometer test mode by depressing and releasing the blink code switch three times (or use an off-board diagnostic tool).

ABS Indicator Lamp

1.Verify diagnostic blink code switch is open when not activated.

Retarder Relay

1.Measure resistance between retarder disable output of EC-60controller and voltage / ground.

Test

Measurement

Retarder disable to Voltage

Open Circuit (no continuity)

or Ground

 

 

 

2.Verify vehicle has retarder relay.

3.Verify proper wiring from ECU to retarder relay.

PMV Commons

1.Measure resistance between any common (PMV, TCV, and Diff.) and voltage or ground.

Test

Measurement

Any PMV, TCV, or Diff.

Open Circuit (no continuity)

Common to Voltage

 

or Ground

 

 

 

Differential Lock Solenoid

1.Measure resistance between Diff lock solenoid and voltage or ground.

TestMeasurement

Diff. Lock Solenoid to Voltage Open Circuit (no continuity) or Ground

Cab-mount ECU: Looking into wire harness connector

Connector

Pin

PMV Location

 

4

TCV Common

X1

9

Stop Lamp Switch

18 Way

12

ABS WL Ground

 

15

ABS WL Interlock

 

17

Retarder

 

18

ABS WL

 

3

PMV Left Steer Axle Common

X2

6

PMV Right Steer Axle Common

18 Way

9

PMV Right Drive Axle Common

 

12

PMV Left Drive Axle Common

 

 

 

 

2

Diff Lock Solenoid

X3

3

Diff Lock Solenoid Common

15 Way

6

PMV Left Additional Axle Common

 

9

PMV Right Additional Axle Common

 

 

 

Frame-mount ECU: Looking into wire harness connector

Connector

Pin

PMV Location

X1

10

Retarder

18 Way

12

ABS WL

 

 

 

 

5

Stop Lamp Switch

X2

13

PMV Left Steer Axle Common

18 Way

14

PMV Right Steer Axle Common

 

15

PMV Left Drive Axle Common

 

16

PMV Right Drive Axle Common

 

 

 

 

8

Diff. Lock Solenoid

X3

13

TCV Common

15 Way

14

Diff. Lock Solenoid Common

 

15

PMV Left Additional Axle Common

 

16

PMV Right Additional Axle Common

 

 

 

27

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Contents Standard Frame Standard Cab Premium Frame Premium Cab IntroductionFrame ECUs ComponentsECU Mounting Cab ECUsHardware Configurations EC-60CONTROLLERS with PLCEC-60CONTROLLER Inputs EC-60CONTROLLER Outputs POWER-UP Sequence ABS Operation ATC Operation Bendix Smart ATC Traction Control Optional ATC Off-Road ModeDynamometer Test Mode Engine Torque Limiting ETL with Smart ATC Traction ControlABS Partial Shutdown Reconfiguring EC-60Controllers System ConfigurationECU Reconfiguration Installing a NEW EC-60CONTROLLER Troubleshooting GeneralSafe Maintenance Practices Removing the EC-60CONTROLLER AssemblyTroubleshooting Blink Codes and Diagnostic Modes ECU DiagnosticsBlink Codes Inactive Diagnostic Trouble Code Mode Diagnostic ModesDiagnostic Modes Active Diagnostic Trouble Code ModeClearing Active Diagnostic Trouble Codes System Configuration Check ModeReconfigure ECU Mode Bendix RDU Reset Function Using HAND-HELD or PC-BASED DiagnosticsBendix RDU Remote Diagnostic Unit Features of the Bendix RDU ToolBendix Technical Assistance Team Bendix ACom Diagnostics 3.0 SoftwareBendix RDU Communication Problems Nexiq Bendix Application Card1st Blink Code Go Here for Troubleshooting Tests Number Active or Inactive Diagnostic Trouble CodesCode Description Troubleshooting Diagnostic Trouble Codes2nd Diagnostic Blink Trouble Code Wheel Speed SensorsSpeed Sensor Repair Tests Cab-mount ECU Looking into wire harness connectorFrame-mount ECU Looking into wire harness connector Connector PinPressure Modulator Valves Pressure Modulator Valve Repair Tests Connector Pin PMV LocationTraction Control Valve Repair Tests Traction Control ValvesTroubleshooting Diagnostic Trouble Codes Power Supply Power Supply TestsConnector Pin Power Supply Test J1939 High J1939 Troubleshooting TestsConnector Pin J1939 Connector Pin J1939 J1939 LowECU Troubleshooting Diagnostic Trouble Codes Miscellaneous 2nd. Diagnostic Blink Trouble Code Code DescriptionRepair Information PMV Commons Miscellaneous TroubleshootingABS Indicator Lamp Retarder RelayStandard Cab X1 Connector Pin Assignments Standard Cab X2 Connector Pin AssignmentsNot Used Standard Frame X2 Connector Pin Assignments Standard Frame X1 Connector Pin AssignmentsPremium Cab Model EC-60Controller Premium Cab X1 Connector Pin AssignmentsPremium Cab X2 Connector Pin Assignments Premium Cab X3 Connector Pin AssignmentsPremium Frame X1 Connector Pin Assignments Premium Frame X2 Connector Pin AssignmentsPremium Frame X3 Connector Pin Assignments ABS/ATC Wiring Troubleshooting WiringABS Component Connector Wire Wire Seal Terminal Plug Lock Crimp ToolTerminal Wheel Speed Sensor Wiring Troubleshooting WiringDrive Axle Steer Axle Troubleshooting Standard Cab Wiring Schematic 4S/4MPackard BPin CPin APin Troubleshooting Premium Cab Wiring Schematic 6S/6MPackard Pin B Pin C Pin a Troubleshooting Premium Cab Wiring Schematic 6S/5MSteer Axle Drive Axle Troubleshooting Standard Frame Wiring Schematic 4S/4MPremium Frame Wiring Schematic 6S/6M Troubleshooting Premium Frame Wiring Schematic 6S/6MPremium Frame Wiring Schematic 6S/5M Troubleshooting Premium Frame Wiring Schematic 6S/5MGlossary SID FMI J1587 J1587 Equivalents General