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 25 SYSTEM DESCRIPTION ..............................1
3.2 TRACTION CONTROL SYSTEM (TCS) DESCRIPTION (IF EQUIPPED).......1
3.3 SYSTEM COMPONENTS.............................................1
3.3.1 ABS AND BRAKE WARNING INDICATORS ......................2
3.3.2 CONTROLLER ANTILOCK BRAKE (CAB) .......................2
3.3.3 HYDRAULIC CONTROL UNIT .................................2
3.3.4 ABS SWITCHES/SENSORS...................................3
3.3.5 ABS INITIALIZATION ........................................3
3.3.6 ABS DIAGNOSTIC MODE ....................................3
3.3.7 TRACTION CONTROL OPERATION (IF EQUIPPED) ..............4
3.5 DIAGNOSTIC TROUBLE CODES ......................................4
3.6 FREEZE FRAME....................................................4
3.7 DRBIIIT ERROR MESSAGES AND BLANK SCREEN ......................4
3.7.1 DRBIIIT DOES NOT POWER UP...............................4
3.7.2 DISPLAY IS NOT VISIBLE ....................................4
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...............................5
4.3 WARNINGS ........................................................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 ......................................6
6.0 GLOSSARY OF TERMS...................................................6
7.0 DIAGNOSTIC INFORMATION AND PROCEDURES ............................9
BRAKES (CAB)
BATTERY VOLTAGE OUT OF RANGE ......................................10
BCM MESSAGES NOT RECEIVED.........................................12
CAB INTERNAL FAILURE ................................................13
INSTRUMENT CLUSTER BULB FAILURE ...................................15
LEFT FRONT SENSOR CIRCUIT FAILURE ..................................17
LEFT REAR SENSOR CIRCUIT FAILURE ...................................17
RIGHT FRONT SENSOR CIRCUIT FAILURE.................................17
RIGHT REAR SENSOR CIRCUIT FAILURE ..................................17
LEFT FRONT WHEEL SPEED SIGNAL FAILURE .............................22
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