TABLE OF CONTENTS
1.0 INTRODUCTION .........................................................1
1.1 SYSTEM COVERAGE ...............................................1
1.2 SIX-STEP TROUBLESHOOTING PROCEDURE ..........................1
2.0 IDENTIFICATION OF SYSTEM .............................................1
3.0 SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION ......................1
3.1 TEVES MARK 20e SYSTEM DESCRIPTION .............................1
3.1.1 PEDAL FEEL/VEHICLES CHARACTERISTICS ...................2
3.1.2 SYSTEM COMPONENTS.....................................2
3.1.3 ABS AND RED BRAKE WARNING INDICATOR...................2
3.1.4 CONTROLLER ANTILOCK BRAKE (CAB) .......................3
3.1.5 HYDRAULIC CONTROL UNIT .................................3
3.1.6 SENSORS .................................................3
3.2 ABS DIAGNOSTIC TROUBLE CODES..................................4
3.2.1 SYSTEM INITIALIZATION ....................................4
3.2.2 DIAGNOSTIC MODE ........................................4
3.2.3 INTERMITTENT DIAGNOSTIC TROUBLE CODES ................4
3.3 FREEZE FRAME....................................................4
3.4 USING THE DRBIIIT .................................................4
3.5 DRBIIIT ERROR MESSAGES .........................................4
3.5.1 DRBIIIT DOES NOT POWER UP (BLANK SCREEN)...............5
3.5.2 DISPLAY IS NOT VISIBLE ....................................5
4.0 DISCLAIMERS, SAFETY, WARNINGS .......................................5
4.1 DISCLAIMERS......................................................5
4.2 SAFETY ...........................................................5
4.2.1 TECHNICIAN SAFETY INFORMATION ..........................5
4.2.2 VEHICLE PREPARATION FOR TESTING........................5
4.2.3 SERVICING SUB—ASSEMBLIES ..............................5
4.2.4 DRBIIIT SAFETY INFORMATION ..............................6
4.3 WARNING .........................................................6
4.3.1 VEHICLE DAMAGE WARNINGS ...............................6
4.3.2 ROAD TESTING A COMPLAINT VEHICLE .......................6
4.4 DIAGNOSIS........................................................6
5.0 REQUIRED TOOLS AND EQUIPMENT ......................................7
6.0 GLOSSARY OF TERMS...................................................7
7.0 DIAGNOSTIC INFORMATION AND PROCEDURES ............................9
BRAKES (CAB)
BUS SYSTEM COMMUNICATION FAILURE .................................10
CAB INTERNAL FAILURE ................................................12
CLUSTER LAMP FAILURE................................................14
LEFT FRONT SENSOR CIRCUIT FAILURE ..................................16
LEFT REAR SENSOR CIRCUIT FAILURE ...................................16
RIGHT FRONT SENSOR CIRCUIT FAILURE.................................16
RIGHT REAR SENSOR CIRCUIT FAILURE ..................................16
LEFT FRONT WHEEL SPEED SIGNAL FAILURE .............................21
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