Cummins QSB6.7 Engine Service and Technical Manual PDF (EN)

DATA Specifications NOTE: INPUT SIGNAL ROUNDS, SHIELDS‘AND RETURNS OUTPUT SIGNAI General LINKS REPRESENTS FEMALE OEM PINS REPRESENTS MAI REPRESENTS TWISTED PAIR instructions in the Service Manual. REPRESENTS SHIELD ENGINE CONTROL MODULE OEM CONNECTOR TACHOMETER Ps — ANALOG ACCELERATOR [ee ee ee a eee ee POSITION 1 POSITION || a aoe ea ae ae ne ee OSITION 2 eee eee eee ee Sensor Supply Voltage - @ ECM - 4.75 to 5.25 VDC @ -4. : Solenoids * Fuel Pump Actuatog . SENSOR 6 . 4. ohm .0 to 4.5 ® Inject ors - Less than 2 ohms ae All Continuity Chec no open eta (| > 1 >}9 Sot THROTTLE .g: .

H i * Termination Hoeefenes 0 to 130 ohms | | SENSOR5 ccs Electrical Specifications SAE J1939 Bac fee Resistance + Positive wire to tere 0 to 70 ohm i 1 mae UL eee FREQUENCY Information AWARNIN cA ined, experienced technicians only. Improper This diagram is providedied as a diagnostic tool for tra See important troubleshooting or repair can result in severe personal injury or death or property damage. RESPONSIBILITY All Shorts To nD if 100k ohms * OK (no short aro RETURN Engine ENGINE: CONNECTOR OEM ENGINE HARNESS 1 CONNECTOR SENSOR LOCKOUT AIR HEATER RELAY ENGINE | RETURN CONTROL MODULE ENGINE CONNECTOR2 HARNESS:

7 RETURN i EE ry RETURN DUAL OUTPUT B = SIGNAL elie SE - FUSE TI ay SIGNAL AIR SHUTOFF VALVE POSITION SWITCH al CRUISE CONTROLIPTO RESUMEISET SWITCH — SIGNAL SIGNAL CRUISE CONTROL/PTO ON/OFF SWITCH al > ‘SIGNAL ALTERNATE LOW IDLE SWITCH = = ENGINE PROTECTION OVERRIDE SWITCH SCR OPERATOR INDUCEMENT OVERRIDE SWITCH ce ATTA one RECIRCULATION TEMPERATURE SENSOR SIGNAL TEMPERATURUPRESSURE SENSOR FUEL'RAIL PRESSURE SENSOR AFTERTREATMENT DIESEL EXHAUST FLUID DOSING et VALVE CONNECTOR MATING TATE Cee ¥ SIGNAL 2 > TEST LEAD pe 935:

SIGNAL INTERMEDIATE SPEED CONTROL 2 SWITCH C__ 2 FACE 2 1 SARTRE TEST LEAD TEST LEAD 3164596 3164596 > SIGNAL INTERMEDIATE SPEED CONTROL 1 SWITCH ENABLE SWITCH Cc 7 SIGNAL REMOTE ACCELERATOR = r EXHAUST FUEL sional OEM SWITCH oO ACCELERATOR PEDAL OR LEVER IDLE VALIDATION SWITCH PUMP ACTUATOR FUEL LIFT PUMP GAS EXHAUST CRANKCASE BREATHER HEATER » RECIRCULATION GAS VALVE RECIRCULATION POSITION VALVE CONNECTOR VIATING RACE SENSOR MOTOR TURBOCHARGER SPEED SENSOR eeTMeNT INTAKE AFTERTREATMENT CONNECTOR WATER IN FUEL SENSOR SIGNAL oO 2 3 SIGNAL OEM SWITCH ~ BRAKE PEDAL POSITION SWITCH 2/ REAR AXLE SCR SYSTEM RATIO TEST LEAD 3823993, sou SWITCH TEST LEAD 4919351 TEST LEAD 4919351 TEST LEAD 3164596 > SIGNAL CLEANING PERMIT/INHIBIT SWITCH :

SIGNAL CL ENGINE BRAKE SELECTOR SWITCH 1 CRANKCASE | 6 PEDAL OR LEVER RESISTOR AFTERTREATMENT DIESEL EXHAUST FLUID DOSING UNIT CONNECTOR MATING FACE B A SIGNAL “ FAN CONTROL SWITCH ACCELERATOR TERMINATION AND DIAGNOSTIC CONNECTOR CONNECTOR pam: SWITCH REVERSIBLE FAN PURGE/INHIBIT SWITCH AIR SHUTOFF VALVE TEST SWITCH VALIDATION SWITCH 1 120 OHM ENGINE EXHAUST ie TREC OUEATION DIFFERENTIAL PRESSURE EXHAUST GAS PRESSURE SENSOR COOLANT TEMPERATURE SENSOR INTERMEDIATE SPEED CONTROL 3 PRESSURE CRANE POSITION ~ANKSHAFT POSITION SIGNAL ENGINE BRAKE SELECTOR SWITCH 2 VALIDATION OIL PRESSURE CONNECTOR > IDLE SIGNAL !

Cc TEST s1eig08LEAD TEST gessaeLEAD TEST wie LEAD SIGNAL oO ce TEST LEAD 4919351 SIGNAL CLUTCH PEDAL POSITION SWITCH 7 [ >1> AFTERTREATMENT DIESEL EXHAUST FLUID TANK TEMPERATURE SENSOR SIGNAL RETURN > 2 >| INJECTOR PASS THROUGH CONNECTOR VABIABLE GEOMETRY TURBOCHARGER'ACTUATOR 2 WIRE SENSOR 4 AFTERTREATMENT DIESEL EXHAUST LEVEL SENSOR | FLUID TANK GI 1 >|>| > 2 ENGINE BRAKE CONNECTOR 4 vieaee RETURN A.

B l 3 WIRE SENSOR t | |_ 2 3 AFTERTREATMENT DIESEL EXHAUST FLUID TANK LEVEL SENSOR Ll OEM TEMPERATURE SENSOR WATER IN FUEL SENSOR ba @ SERVICE POSITIVE Bate NEGATE I d | TEMPERATURE >01 41 >| -AETERTREATMENT DIESEL EXHAUST FLUID RETURN VALVE | AFTERTREATMENT | DIESEL EXHAUST FLUID DOSING UNIT | SUPPLY an | >42 AFTERTREATMENT DIESEL EXHAUST FLUID RETURN SUPPLY I 03 SIGNAL EXHAUST > 05 PRESSURE GAS RECIRCULATION DIFFERENTIAL SENSOR AFTERTREATMENT DIESEL EXHAUST | FLUID DOSING UNIT HEATER EXHAUST GAS PRESSURE SENSOR’ 45ANP SENSOR FUSE f\ 15 AMP FUSE t\ ~~ AFTERTREATMENT DIESEL EXHAUST FLUID TANK HEATER CONTROL VALVE EXHAUST FLUID LINE HEATER 1 DIESEL EXHAUST FLUID LINE HEATER 2 AFTERTREATMENT DIESEL EXHAUST FLUID LINE HEATER 3 CUMMINS RESPONSIBILITY AFTERTREATMENT EXHAUST FLUID |_| SWITCH TURBOCHARGER 1 p> RETURN Bi> SIGNAL >2> RETURN > 1 | | OIL PRESSURE Se ; DIESEL AFTERTREATMENT VALVE RETURN ae beep AFTERTREATMENT EXHAUST GAS:

RECIRCULATION RETURN tT ~ . L SPEED SENSOR FUEL PRESSURE RELIEF VALVE DIESEL DOSING VALVE 24 PIN CROSSOVER CONNECTOR —r— FT TAn SIGNAL | [ RETURN OEM TEMPERATURE SENSOR 2 eV SPARE TEMPERATURE SENSOR TSIM SIGNAL | [ RETURN SPARE TEMPERATURE SENSOR Roan sicnat | [} RETURN SIGNAL ev SIGNAL VU SIGNAL SPARE TEMPERATURE SENSOR DROOP SELECT SWITCH Ran sicnat | LK RETURN [OTT A SIGNAL OEM I x RETURN SIGNAL DROOP SELECT SWITCH Vv LAMP SIGNAL OEM SIGNAL TACHOGRAPH LAMP eV oan sienat | [}{ RETURN TACHOGRAPH cv FOTIA siGna DEDICATED PULSE WIDTH MODULATION | K SIGNAL RETURN eV SPARE TEMPERATURE SENSOR: Ta nsienan | x SIGNAL RETURN r-aV SIGNAL SIGNAL POSITIVE } NEGATIVE v SIGNAL QSB6.7 W Cummins Inc.

® iring so. CM2350 D B1 05 Diagram OEM PRESSURE FAN SPEED OEM DEVICE CUMMINS RESPONSIBILITY SENSOR SENSOR OEM SWITCH SIGNAL > 05 >f>05 > RETURN TURN SIGNAL 02 abo 02 >| RETURN L ot spot >|_-SUPPLY OFM RFSPONSIBII ITY PRESSURE SPEED SAE J1939 DATA LINK SAE J1939 DATA LINK SIGNAL SIGNAL 5 Bulletin 4332776 Printed in U.S.A. 02-DECEMBER-2014 _ SPARE FAN SIGNAL on . <82 <2 VALVE |. 6 PRESSURE4 SENSOR SIGNAL SIGNAL SENSOR ao DUAL OUTPUT B 402 SPARE PRESSURE SENSOR SENSOR SUPPLY 7 SENSOR SUPPLY 7 : SUPPLY2 1

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