TABLE OF CONTENTS FOR SECTION ‘F’
SECTION TITLE
PAGE NO.
Page F-i
Repair and Service Manual
ELECTRONIC SPEED CONTROL
PERFORMANCE ...................................................................................................... F - 1
Speed Control .................................................................................................. F - 1
Pedal-Up Features ........................................................................................... F - 1
Walk Away Feature .......................................................................................... F - 1
Anti Roll Back Feature ..................................................................................... F - 1
Anti Stall Feature ............................................................................................. F - 1
High Pedal Disable Feature ............................................................................. F - 2
Diagnostic Mode Feature ................................................................................. F - 2
OPERATION ............................................................................................................. F - 2
Pedal Box......................................................................................................... F - 3
Speed Sensor .................................................................................................. F - 3
Controller ......................................................................................................... F - 3
GENERAL TROUBLESHOOTING ............................................................................ F - 4
Symptoms ........................................................................................................ F - 4
Testing ............................................................................................................. F - 4
Testing Battery Voltage .................................................................................... F - 4
Continuity Check .............................................................................................. F - 5
Testing a Switch for Continuity ......................................................................... F - 5
Testing a Solenoid for Continuity ..................................................................... F - 5
TROUBLESHOOTING DIAGRAMS .......................................................................... F - 6
INDUCTIVE THROTTLE SENSOR (ITS) TESTING AND REPLACEMENT............ F - 14
CONTROLLER REPLACEMENT ............................................................................ F - 17
SOLENOID REPLACEMENT .................................................................................. F - 17
LIST OF ILLUSTRATIONS
Fig. 1 Performance Characteristics ....................................................................... F - 1
Fig. 2 Run-Tow/Maintenance Switch ..................................................................... F - 2
Fig. 3 Access to Pedal Box ................................................................................... F - 3
Fig. 4 Controller and Solenoid .............................................................................. F - 3
Fig. 5 Battery Reference Voltage .......................................................................... F - 5
Fig. 6 Continuity Check of Switch ......................................................................... F - 5
Fig. 7 Continuity Check of Solenoid ...................................................................... F - 6
Fig. 8 48 volt Fault Codes ..................................................................................... F - 7
Fig. 9 Controller Connectors and Connections ...................................................... F - 8
Fig. 10 48 Volt Wiring Diagram ............................................................................ F - 9
Fig. 11 J-1 Pin Connector Diagnostics ................................................................ F - 10
Fig. 12 J-1 Pin Connector Diagnostics (Continued) ............................................. F - 11
Fig. 13 J-2 Pin Connector Diagnostics ................................................................ F - 12
Fig. 14 Secondary Wiring Diagnostics ................................................................ F - 13
Fig. 15 ITS and Plunger ...................................................................................... F - 14
Fig. 16 ITS Adjustment (Sheet 1 of 2) ................................................................. F - 15
Fig. 17 ITS Adjustment (Sheet 2 of 2) ................................................................. F - 16
Fig. 18 Controller Wiring ..................................................................................... F - 18
Summary of Contents for EXPRESS L6 2012
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