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PUMP MOTOR CONNECTOR-2WAYCAV CIRCUIT FUNCTION
1 TN GROUND
2 RD PUMP/MOTOR RELAY OUTPUT
RIGHT FRONT WHEEL SPEED SENSOR - GRAY 2 WAYCAV CIRCUIT FUNCTION
1 B7 18DG/VT RIGHT FRONT WHEEL SPEED SENSOR SIGNAL
2 B6 18DG/WT RIGHT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY
RIGHT FRONT WHEEL SPEED SENSOR CONNECTOR (SENSOR SIDE)-2WAYCAV CIRCUIT FUNCTION
1 WT/DB RIGHT FRONT WHEEL SPEED SENSOR SIGNAL
2 WT RIGHT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY
RIGHT REAR WHEEL SPEED SENSOR - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 B2 18DG/LB RIGHT REAR WHEEL SPEED SENSOR SIGNAL
2 B1 18DG/OR RIGHT REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY
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CONNECTOR PINOUTS
Page 1210 of 4284
RIGHT REAR WHEEL SPEED SENSOR CONNECTOR (SENSOR SIDE)-2WAYCAV CIRCUIT FUNCTION
1 YL/DB RIGHT REAR WHEEL SPEED SENSOR SIGNAL
2 YL RIGHT REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY
TRACTION CONTROL SWITCH - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 B27 20DG/WT TRACTION CONTROL SWITCH SENSE
2 Z427 20BK/WT GROUNDC
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CONNECTOR PINOUTS
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10.0 SCHEMATIC DIAGRAMS
TEVES MARK 20 ANTILOCK BRAKE SYSTEM
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SCHEMATIC DIAGRAMS
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Page 1214 of 4284

TABLE OF CONTENTS
1.0 INTRODUCTION.........................................................1
1.1SYSTEM COVERAGE...............................................1
1.2SIX-STEP TROUBLESHOOTING PROCEDURE..........................1
2.0 IDENTIFICATION OF SYSTEM.............................................1
3.0 SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION......................1
3.1GENERAL DESCRIPTION............................................1
3.2FUNCTIONAL OPERATION...........................................1
3.2.1ECM ON-BOARD DIAGNOSTICS..............................1
3.2.2ECM OPERATING MODES...................................2
3.2.3MONITORED CIRCUITS......................................2
3.2.4SKIS OVERIVEW...........................................2
3.2.5SKIS ON-BOARD DIAGNOSTICS..............................2
3.2.6SKIS OPERATION...........................................2
3.3DIAGNOSTIC TROUBLE CODES......................................3
3.3.1HARD CODE...............................................3
3.3.2INTERMITTENT CODE.......................................3
3.3.3ECM DIAGNOSTIC TROUBLE CODES..........................3
3.3.4SKIM DIAGNOSTIC TROUBLE CODES.........................6
3.3.5HANDLING NO TROUBLE CODE PROBLEMS...................6
3.4USING THE DRBIIIT.................................................6
3.4.1DRBIIITDOES NOT POWER UP...............................6
3.4.2DISPLAY IS NOT VISIBLE....................................6
4.0 DISCLAIMERS, SAFETY, WARNINGS.......................................7
4.1DISCLAIMERS......................................................7
4.2SAFETY...........................................................7
4.2.1TECHNICIAN SAFETY INFORMATION..........................7
4.2.2VEHICLE PREPARATION FOR TESTING........................7
4.2.3SERVICING SUB-ASSEMBLIES...............................7
4.2.4DRBIIITSAFETY INFORMATION...............................7
4.3WARNINGS AND CAUTIONS.........................................8
4.3.1ROAD TEST WARNINGS.....................................8
4.3.2VEHICLE DAMAGE CAUTIONS...............................8
5.0 REQUIRED TOOLS AND EQUIPMENT......................................8
6.0 GLOSSARY OF TERMS...................................................8
7.0 DIAGNOSTIC INFORMATION AND PROCEDURES............................9
COMMUNICATION
*NO RESPONSE FROM ECM (PCI BUS) - DIESEL ONLY......................10
*NO RESPONSE FROM ECM (SCI ONLY) - DIESEL ONLY.....................11
DRIVEABILITY - DIESEL
P0100-MASS AIR FLOW SENSOR PLAUSIBILITY............................13
P0100-MASS AIR FLOW SENSOR PLAUSIBILITY POSITIVE AREA..............13
P0100-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO HIGH...............13
P0100-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO LOW...............13
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TABLE OF CONTENTS - Continued
P0100-MASS AIR FLOW SENSOR SUPPLY VOLTAGE TOO HIGH OR LOW......13
P0105-BAROMETRIC PRESSURE CIRCUIT SIGNAL VOLTAGE TOO HIGH.......20
P0105-BAROMETRIC PRESSURE CIRCUIT SIGNAL VOLTAGE TOO LOW........20
P0606-ECM ERROR GATE ARRAY - COMMUNICATION.......................20
P0606-ECM ERROR GATE ARRAY - COMMUNICATION NOT VERIFIED..........20
P0606-ECM ERROR GATE ARRAY - QUANTITY STOP........................20
P0606-ECM ERROR RECOVERY HAS OCCURRED..........................20
P0606-ECM ERROR REDUNDANT OVERRUN MONITORING..................20
P1206-CALCULATED INJECTOR VOLTAGE TOO HIGH........................20
P1206-CALCULATED INJECTOR VOLTAGE TOO LOW........................20
P1601-CAPACITOR VOLTAGE 1 VOLTAGE TOO HIGH........................20
P1601-CAPACITOR VOLTAGE 1 VOLTAGE TOO LOW.........................20
P1606-AFTER RUN SHUT OFF ERROR-INJECTION POWERSTAGE............20
P1606-AFTER RUN SHUT OFF ERROR-ZERO QUANTITY.....................20
P1610-VOLTAGE REGULATOR SIGNAL VOLTAGE TOO HIGH..................20
P1610-VOLTAGE REGULATOR SIGNAL VOLTAGE TOO LOW..................20
P1680-EEPROM PLAUSIBILITY CHECKSUM ERROR.........................20
P1680-EEPROM PLAUSIBILITY CODE WORD INCORRECT OR MISSING........20
P1680-EEPROM PLAUSIBILITY COMMUNICATION ERROR....................20
P1680-EEPROM PLAUSIBILITY VARIATION NUMBER ERROR.................20
P1680-EEPROM PLAUSIBILITY VIN CHECKSUM ERROR.....................20
P1680-EEPROM PLAUSIBILITY WRITE ERROR..............................20
P1696-EEPROM MEMORY WRITE DENIED.................................20
P0110-INTAKE AIR TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH......24
P0110-INTAKE AIR TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO LOW.......27
P0115-ENGINE COOLANT TEMP SENSOR CIRCUIT SIGNAL
VOLTAGE TOO HIGH....................................................29
P0115-ENGINE COOLANT TEMP SENSOR CIRCUIT SIGNAL
VOLTAGETOO LOW ....................................................32
P0190-FUEL PRESS SENSOR CIRCUIT MALF SIGNAL VOLTAGE TOO HIGH.....34
P0190-FUEL PRESS SENSOR CIRCUIT MALF SIGNAL VOLTAGE TOO LOW.....38
P0190-FUEL PRESS SENSOR CIRCUIT MALF SUPPLY VOLTAGE
TOO HIGH OR LOW.....................................................40
P0195-OIL TEMP SENSOR CIRCUIT MALF SIGNAL VOLTAGE TOO HIGH........41
P0195-OIL TEMP SENSOR CIRCUIT MALF SIGNAL VOLTAGE TOO LOW........44
P0201-CYLINDER 1-INJECTOR CIRCUIT CURRENT DECREASE...............46
P0201-CYLINDER 1-INJECTOR CIRCUIT LOAD DROP........................46
P0201-CYLINDER 1-INJECTOR CIRCUIT OVERCURRENT HIGH SIDE...........46
P0201-CYLINDER 1-INJECTOR CIRCUIT OVERCURRENT LOW SIDE...........46
P0202-CYLINDER 2-INJECTOR CIRCUIT CURRENT DECREASE...............50
P0202-CYLINDER 2-INJECTOR CIRCUIT LOAD DROP........................50
P0202-CYLINDER 2-INJECTOR CIRCUIT OVERCURRENT HIGH SIDE...........50
P0202-CYLINDER 2-INJECTOR CIRCUIT OVERCURRENT LOW SIDE...........50
P0203-CYLINDER 3-INJECTOR CIRCUIT CURRENT DECREASE...............54
P0203-CYLINDER 3-INJECTOR CIRCUIT LOAD DROP........................54
P0203-CYLINDER 3-INJECTOR CIRCUIT OVERCURRENT HIGH SIDE...........54
P0203-CYLINDER 3-INJECTOR CIRCUIT OVERCURRENT LOW SIDE...........54
P0204-CYLINDER 4-INJECTOR CIRCUIT CURRENT DECREASE...............58
P0204-CYLINDER 4-INJECTOR CIRCUIT LOAD DROP........................58
P0204-CYLINDER 4-INJECTOR CIRCUIT OVERCURRENT HIGH SIDE...........58
P0204-CYLINDER 4-INJECTOR CIRCUIT OVERCURRENT LOW SIDE...........58
P0235-BOOST PRESSURE SENSOR PLAUSIBILITY..........................62
P0235-BOOST PRESSURE SENSOR SIGNAL VOLTAGE TOO HIGH.............64
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TABLE OF CONTENTS - Continued
P0235-BOOST PRESSURE SENSOR SIGNAL VOLTAGE TOO LOW.............67
P0235-BOOST PRESSURE SENSOR SUPPLY VOLTAGE TOO HIGH OR LOW....70
P0335-CKP POSITION SENSOR CIRCUIT OVERSPEED RECOGNITION.........73
P0340-CKP POSITION SENSOR CIRCUIT DYNAMIC PLAUSIBILITY.............75
P0340-CMP POSITION SENSOR CIRCUIT CMP/CKP SYNC FAILURE...........77
P0340-CMP POSITION SENSOR CIRCUIT SIGNAL FREQUENCY TOO HIGH.....80
P0340-CMP POSITION SENSOR CIRCUIT STATIC PLAUSIBILITY...............80
P0380-GLOW PLUG CIRCUIT A OPEN CIRCUIT.............................84
P0380-GLOW PLUG CIRCUIT A SHORT CIRCUIT............................84
P0403-EGR SOLENOID CIRCUIT OPEN CIRCUIT............................87
P0403-EGR SOLENOID CIRCUIT SHORT CIRCUIT...........................90
P0480-FAN 1 CONTROL CIRCUIT OPEN CIRCUIT...........................92
P0480-FAN 1 CONTROL CIRCUIT SHORT CIRCUIT..........................94
P0481-FAN 2 CONTROL CIRCUIT OPEN CIRCUIT...........................96
P0481-FAN 2 CONTROL CIRCUIT SHORT CIRCUIT..........................98
P0500-VEHICLE SPEED SENSOR FREQUENCY TOO HIGH..................100
P0500-VEHICLE SPEED SENSOR HIGH LEVEL DURATION...................100
P0500-VEHICLE SPEED SENSOR PLAUSIBILITY...........................100
P0500-VEHICLE SPEED SENSOR SIGNAL VOLTAGE TOO HIGH..............100
P0514-BATTERY TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH.......104
P0520- OIL PRESS SENSOR CIRCUIT MALF PLAUSIBILITY..................107
P0520-OIL PRESS SENSOR CKT MALF SUPPLY VOLTAGE TOO HIGH OR LOW .110
P0530-A/C PRESSURE SENSOR CIRCUIT PLAUSIBILITY....................112
P0530-A/C PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH.......112
P0530-A/C PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO LOW.......112
P0530-A/C PRESSURE SENSOR CIRCUIT SUPPLY VOLTAGE TOO HIGH OR
LOW.................................................................112
P0560-SYSTEM VOLTAGE TOO HIGH.....................................117
P0560-SYSTEM VOLTAGE TOO LOW.....................................120
*CHECKING THE CHARGING SYSTEM OPERATION - DIESEL................120
P0615-STARTER RELAY CIRCUIT SHORT CIRCUIT.........................124
P0620-GENERATOR FIELD CONTROL MALF BATTERY VOLTAGE
DEVIATION TOO HIGH.................................................126
P0620-GENERATOR FIELD CONTROL MALF BATTERY VOLTAGE
DEVIATION TOO LOW..................................................126
P0620-GENERATOR FIELD CONTROL MALF BATTERY VOLTAGE TOO HIGH . . .126
P0620-GENERATOR FIELD CONTROL MALF BATTERY VOLTAGE TOO LOW. . . .126
P0620-GENERATOR FIELD CONTROL MALF CHARGING VOLTS TOO LOW. . . .126
P0620-GENERATOR FIELD CONTROL MALF OPEN CIRCUIT.................126
P0620-GENERATOR FIELD CONTROL MALF SHORT CIRCUIT................126
P0620-GENERATOR FIELD CONTROL MALF UNSTABLE CURRENT...........126
P0627-FUEL LIFT PUMP RELAY CONTROL CIRCUIT OPEN CIRCUIT..........129
P0627-FUEL LIFT PUMP RELAY CONTROL CIRCUIT SHORT CIRCUIT.........131
P0641-SENSOR REFERENCE VOLTAGE A CKT VOLTAGE TOO HIGH..........133
P0651-SENSOR REFERENCE VOLTAGE B CKT VOLTAGE TOO HIGH..........133
P0641-SENSOR REFERENCE VOLTAGE A CKT VOLTAGE TOO LOW..........136
P0651-SENSOR REFERENCE VOLTAGE B CKT VOLTAGE TOO LOW..........136
P0645-A/C CLUTCH RELAY CIRCUIT OPEN CIRCUIT........................139
P0645-A/C CLUTCH RELAY CIRCUIT SHORT CIRCUIT......................142
P0685-ECM/PCM RELAY CONTROL CIRCUIT SHUTS OFF TOO EARLY........145
P0685-ECM/PCM RELAY CONTROL CIRCUIT SHUTS OFF TOO LATE..........147
P0703-BRAKE SWITCH SIGNAL CIRCUITS PLAUSIBILITY WITH
REDUNDANT CONTACT................................................149
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