CONDITION DESCRIPTION NO ERRORS DEFECTED – FLAS CODE ONLY ELECTRICAL SYSTEM VOLTAGE B+ OUT OF RANGE HIGH ELECTRICAL SYSTEM VOLTAGE B+ OUT OF RANGE LOW ENGINE COOLAN TEMPERATURE SIGNAL OUT OF RANGE LOW ENGINE COOLAN TEMPERATURE SIGNAL OUT OF RANGE HIGH INTAKE MANIFOLD ABSOLUTE PRESS.SIGNAL OUT OF RANGE HIGH INTAKE MANIFOLD ABS.PRESS SIGNAL OUT OF RANGE LOW INTAKE MANIFOLD ABS.PRESS INRANGE FAUL INJECTION CONTROL PRESS SIGNAL OUT OF RANGE LOW INJECTION CONTROL PRESS SIGNAL OUT OF RANGE HIGH ACCELERATOR POSITION SIGNAL OUT OF RANGE LOW ACCELERATOR POSITION SIGNAL OUT OF RANGE HIGH ACCELERATOR POSITION SIGNAL INRANGE FAUL “M” ACCELERATOR POSITION AND IDLE VALIDATION DISAGREE IDLE VALIDATION SWITCH CIRCUIT FAULT VEHICLE SPEED SIGNAL OUT OF RANGE LOW VEHICLE SPEED SIGNAL OUT OF RANGE HIGH WRONG NUMBER OF CMP SIGNAL TRANSITIONS PER CAM REV CMP SIGNAL NOISE DETECTED CMP SIGNAL INACTIVE WHILE ICP HAS INCREASED BAROMETRIC PRESS. SIGNAL OUT OF RANGE HIGH BAROMETRIC PRESS. SIGNAL OUT OF RANGE LOW INTAKE AIR TEMPERATURE SIGNAL OUT OF RANGE LOW INTAKE AIR TEMPERATURE SIGNAL OUT OF RANGE HIGH ENGINE OIL PRESS SIGNAL OUT OF RANGE LOW ENGINE OIL PRESS SIGNAL OUT OF RANGE HIGH REMOTE THROTTLE SIGNAL OUT OF RANGE LOW REMOTE THROTTLE SIGNAL OUT OF RANGE HIGH VEHICLE SPEED SIGNAL FREQ. OUT OF RANGE HIGH HYDRAULIC PRESSURE SIGNAL OUT OF RANGE LOW CRUISE PTO CONTROL SWITCH CIRCUIT FAULT(OR REMOTE PTO) BRAKE SWITCH CIRCUIT FAULT EOP SENSOR SIGNAL IN RANGE FAULT HYDRAULIC PRESSURE SENSOR SIGNAL OUT OT RANGE HIGH ATA DATA COMMUNICATION LINK ERROR ECL SWITCH CIRCUIT FAULT INJECTION CNTRL. PRESS REGULATOR OCC SELT TEST FAILED ENGINE TO TRANS DATA LINE OCC SELT TEST FAILED ENGINE FAN-OCC SELF TEST FAILED RADIATOR SHUTTER ENABLE OCC SELF TEST FAILET CHANGE OIL LAMP OCC FAULT IOL WATER LAMP OCC FAULT VEHICLE RETARDE RELAY OCC FAULT ENGINE WARCING LAMP OCC FAULT ENGINE ORT TEMP. SIGNAL OUT OF RANGE LOW ENGINE ORT TEMP. SIGNAL OUT OF RANGE HIGH ENGINE OF PRES BELOW WARNING LEVEL ENGINE OF PRES BELOW CRITICAL LEVEL ENGINE SPEED ABOVE WARNING LEVEL ENGINE COOLANT TEMP. UNABLE TO REACH COMMAND SET POINT ENGINE COOLANT TEMP ABOVE WARNING LEVEL ENGINE COOLANT TEMP ABOVE CRITICAL LEVEL ENGINE COOLANT BELOW WARNING CRITICAL LEVEL IDIE SHUTDOWN TIRNER ENABLED ENGINE SHUTDOWN POWER REDUCED, MACHED TO COOLING SYS PERFORMANCE INJECTION CNTRL PRESS ABOVE SYSTEM WORKING RANGE INJECTION CNTRL PRESS ABOVE SPEC WITH ENGINE OFF
COMMENTS NO ERRORS DETECTED BY THE ECM ECM VOLTAGE IS CONTINUOUSLY MORE THAN 18 VOLTS ECM VOLTAGE LESS THAN 6.5 – CAUSE OF NO START/MISFIRE DEFAULT 180°F/82°C.ECT BELOW 0.127V DEFAULT 180°F/82°C. ECT ABOVE 4,6V DEFAULT INTERRED MAP-LOW POWER SLOW ACCELERATION MAP>4.9V DEFAULT INTERRED MAP-LOW POWER SLOW ACCELERATION MAP<.O39V DEFAULT INTERRED MAP-LOW POWER SLOW ACCERERATION DEFAULT OPEN LOOP CONTROL-UNDERRUN AT IDLE-ICP BELOW 0.039V DEFAULT OPEN LOOP CONTROL-UNDERRUN AT IDLE-ICP ABOVE 4.897V SIGNAL VOLTAGE BELOW .152 VOLTS-ENG. IDLE ONLY SIGNAL VOLTAGE ABOVE 4.55 VOLTS-ENG. IDLE ONLY APS/IVS CONFLICT-LIMITED TO 0% APS APS/IVS CONFLICT-LIMITED TO 0% APS APS/IVS CONFLICT-LIMITED TO 50%APS VSS SIG AT 0MPH< .048V-CRUSE/PTO DISENGAGED- ENG SPEED LIMITED VSS SIG TA 0MPH> 4.492V-CRUSE/PTO DIS.-ENG SPEED LIMITED CMP SIGNAL INTERMITENT ECM DETECTS ELECTRICAL NOISE IN CIRCUIT NO CMP SIGNAL WHILE ICP SIGNAL INCREASED BARO SIGNAL VOLTAGE ABOVE 4.9V FOR 1.0 SEC-DEFAULTS TO 14.7 PSI BARO SIGNAL VOLTAGE BELOW 1.0V FOR 1.0 SEC-DEFAULTS TO 14.7 PSI IAT SIGNAL VOLTEGE LOW-DEFAULTS TO 77°C IAT BELOW 0.127V IAT SIGNAL VOLTAGE LOW-DEFAULTS TO 77°C IAT ABOVE 4.6V EOP SIGNAL VOLTAGE LOW BELOW 0.039V EOP SIGNAL VOLTAGE HIGH ABOVE 4.9V RPS SENSOR SIGNAL VOLTAGE BELOW 0.249V RPS SENSOR SIGNAL VOLTAGE ABOVE 4.5V SPEEDO CRUISE PTO DISABLED-ENG SPEED LIMITED SIG FREQ>4375HZ HPS SIGNAL VOLTAGE BELOW .039 SCCS SIGNAL INCORRECT VOLTAGE SIGNAL WRONG FOR SWITCH STATE VOLTAGE AT ECM(BNO1) AND (BNO2) ARE NOT THE SAME EOP SIGNAL ABOVE 40 PSI W/ENGINE OLT KEY ON DISABLES ENGPROTEC HPS SIGNAL ABOVE 4.9 VOLTS ATA LINK OPEN OR SHORTED WTEC CONTROLLER INTERFERENCE ENGINE COOLANT LEVEL SWITCH CIRCUIT FAULT IPR-OUTPUT CIRCUIT CHECK-ENGINE OFF TEST ONLY EDL RELAY-OUTPUT CIRCUIT CHECK-ENGINE OFF TEST ONLY FAN RELAY-OUTPUT CIRCUIT CHECK-ENGINE OFF TEST ONLY SHUTTER RELAY-OUTPUT CIRCUIT CHECK-ENGINE OFF TEST ONLY CHANGE IOL LAMP-OCC CHECK-ENGINE OFF TEST ONLY OIL WATER LAMP-OCC CHECK-ENGINE OFF TEST ONLY VAHICLE RETARDER OCC ONECK – ENGINE OFF TEST ONLY ENGINE WARNING LAMP OCC CHECK – ENGINE OFF TEST ONLY DEFAULT 212° F/100° C. NO FAST IDLE. EOT ABOVE 4.8 V DEFAULT 212° F/100° C. NO FAST IDLE. EOT ABOVE 0.2 V ENGINE MONITOR OF LOW OIL PRESS. OIL LIGHL ON ENGINE MONITOR OF LOW OIL PRESS. SHULDOWN (IL EQUIPPED) ECM RECORDED EXCESSIVE ENGINE SPEED (ABOVE 3000 RPM) ENABLED ONLY WHEN COLD AMBIENT PROTECTION ENABLED COOLANT TEMPERATURE GREATER TDAN 224.6° F (107° C ) COOLANT TEMPERATURE GREATER TDAN 233.6° F (112.5° C) ECM DETECTS LOW COOLANT LEVEL IDIE SHUTDOWN TIMER IS ON AND IDLE TIME EXCEEDEDLIMIT ENGINE POWER REDUCED NORMAL IN CERTAIN CONDITIONS ICP ABOVE 3675 PSI (25 MPA) ICP SIG VOLT HIGHER THAN EXPECTED W/ENG NOT RUNNING
PROBABLE CAUSES CHARGING SISTEM FAULT LOW BATT, LOOSE CONECTTION OF RESISTANCE IN CIRCUIT ECT SIGNAL CIRCUIT OF SENSOR SHORTED TO GROUND ECT CIRTCUIT OR SENSOR OPEN MAP CIRCUIT SHORTED HIGH DEFECTIVE SENSOR MAP CIRCUIT SHORTED LOW OPEN HOSE TO MAP SENSOR PLUGGED CIRCUIT SHORT LOW OPEN DEFECTIVE SENSOR CIRCUIT SHOR HIGH DEFECTIVE SENSOR SHORT TO GRD OR OPEN IN CIRCUIT DEFECTIVE SENSOR SHORT TO VREF OR 12 VOLT. DEFECTIVE SENSOR FAILED APS SIGNAL BOTH APS AND IVS SIGNAL FAITURE FAILED IVS SIGNAL VSS CIRCUIT OPEN OR SHORTED TO GROUND VSS CIRCUIT SHORTED TO VREF OR 12 VOLTS POOR CONNECTION DEFECTIVE SENSOR ELECTRICAL NOISE INJECTOR VOLTEGE SHORT TO GROUND SHORT HIGH LOW OR OPEN DEFECTIVE CMP SENSOR BARO CIRCUIT SHORT HIGH OR OPEN CIRCUIT BARO CIRCUIT LOW IAT SIGNAL CIRCUIT OR SENSOR SHORTED TO GROUND IAT CIRCUIT OR SENSOR OPEN EOP CIRCUIT SHORT LOW EOP CIRCUIT SHOR HIGH OR OPEN OPEN RPS CIRCUIT SHORTED RPS CIRCUIT MISADJUSTED/FAULTY SPEEDSENSOR ELEC NOISE ON CIRC CITCUIT OPEN SHORT TO GROUND DELECTIVE SENSOR SHORT OR RESISTANCE IN SCCS CIRCUIT FAULTY/MISADJUSTED SWITCH WIRE HARNESS/CONNECOTR PROBLEM LAUTY SENSOR CIRCUIT SHORT HIGH DEFECTIVE SENSOR ATA DEVICE GROUNDED OR OVERLOADED OPEN OR SHORT CIRCUITS SHORT HIGH OR LOW OR OPEN OPEN OF SHORT CIRCUIT OPEN OF SHORT CIRCUIT OPEN OF SHORT CIRCUIT OPEN OF SHORT CIRCUITS FAILED BULB OPEN OF SHORT CIRCUITS FAILED BULB OPEN OF SHORT CIRCUITS OPEN OF SHORT CIRCUITS FARLED BULB EOT SIGNAL CIRCUIT OR SENSOR SHORTED TO GROUND EOT CIRCUIT OF SENSOR OPEN NO OF CW OF STICK – RG ON PRESSUR REGULATOR PICKUP TUBE BLOCKED OF CRACKED WORN BEANNGS OF CIL PUMP TRANSMISSION IMPROPERLY DOWNSHIFTED LEAKING TDERMOCTAT. COOLINNG SYSTEM PROBLEMS COOLING SYSTEM PROBLEM COOLING SYSTEM PROBLEM CHECK COOLANT LEVEL FLOW CHECK FOR LEAKS IDLE TIME EXCEDED LIMIT HIGH ALTITUDE OF HOT HAMBRERT TEMPERATURE GROUNDED IPR CIRCUIT, STUCK IPR VALVE CIRCUIT SHORTED TO VOLTAGE. DEFECTIVE SENSOR
INJECTION CONTROL PRESS ABOVE/BELOW DESIRED LEVE ICP UNABLE TO ACHIEVE SETPOINT IN TIME(POOR PERFORMANCE) ICP UNABLE TO BULB PRESSURE DURING CRANKING HYDRAULIC PRESS UNABLE TO ACHIEVE COMMANDED SET POIN HIGH SIDE TO LOW SIDE OPEN(CYL NUMBER INDICATED) HIGH SIDE SHORTED TO LOW SIDE(CYL NUMBER INDICATED) HIGH SIDE SHORT TO GROUND OR V BAT(CYL NUMBER INDICATED) CILINDER CONTRIB TEST FAILED(CYL NUMBER INDICATED) LOW SIDE TO BANK 1 OPEN LOW SIDE TO BANK 2 OPEN BANK 1 LOW SIDE SHORT TO GROUND OR B+ BANK 2 LOW SIDE SHORT TO GROUND OR B+ INJECTOR DRIVER CIRCUIT FAULT INCORRECT ECM INSTALLED FOR CMP TIMING WHEEL EFRC/EECM ING CONFIGURATION MISMATCH ENGINE USING MFG DEFAULT RATING PROGRAM ENGINE ENGINE USING FIELD DEFAULT RATING INVALID ENGINE RATING CODE CHECK ECM PROGRAMMING FIELD DEFAUTS ACTIVE UNEXPECTED RESET FAULT ROM(READ ONLY MEMORY)SELT TEST FAULT RAM MEMORY-CPU SELT TEST FAULT PROGRAMMABLE PARAMETER LIST LEVEL INCOMPATIBLE RAM PROGRAMMABLE PARAMETER LIST CORRUPT CALUBRATION LEVEL INCOMPATIBLE PROGRAMMABLE PARAMETER MEMORY CONTENT
ICP DESIRED DOES NOT=ICP SIGNAL(LONG PERIOD OF TIME) ICP DESIRED DOES NOT=ICP SIGNAL(SHORT PERIOD OF TIME) LESS THAN 725 PSI ICP PRESSURE ALTER 10 SEC.OF CRANKING ECM DETECTED A OPEN CIRCUIT FOR INJECTOR CIRCUIT ECM DETECTED A SHORT CIRCUIT FOR AN INJECTOR ECM DETECTED INJ LOW SIDE SHORTED TO GRD-1BANK RUN ECM FINDS CILINDER CONTRIBUTION INSUFICIENT HIGH VOLTAGE SUPPLY OPEN-CYL #1,#2,#3 HIGH VOLTAGE SUPPLY OPEN-CYL #4,#5,#6 BANK #1 SIDE HIGH VOLTAGE CIRCUIT SHORTED BANK #2 LEFT SIDE HIGH VOLTAGE CIRCUIT SHORTED ECM CAN NOT SUPPLY SUFICIENT VOLTAGE TO INJECTORS MISMATCH BERWEEN ECM AND ENGINE TARGET WHEEL(1-6,V8) PROGRAMMING PROBLEM ENGINE OPERATION AT 25 HP DEFAULT PROGRAMMING PROBLEM ENG LIMITED TO 160 HP OPTIONS NOT AVAIL PROGRAMMING PROBLEM PROGRAMMING PROBLEM/ECM PROBLEM ECM MOMENTARY LOST POWER ECM FAITURE ECMFAITURE PROGRAMMING PROBLEM/ECM MEMORY PROBLEM PROGRAMMING PROBLEM/ECM MEMORY PROBLEM PROGRAMMING PROBLEM ECM FAITURE
AIR IN OIL WRONG CIL SLUCK OF WRORG IPR LEAKING INJ O RINGS. ICP SENSOR HIGH PRESSURE PUMP(SEE MANUAL) AIR IN OIL INJECTION PRESSURE PROBLEM(SEE MANUAL) HYDRAULIC PRESSUE SYSTEM LEAKGE OR PROBLEM INDIVIDUAL INJECTOR HAMESS OPEN INJECTOR OR HAMESS SHORTED LOW SIDE TO HIGH SIDE INJ HARNES SHORTED ON LOW(CONTROL) CIRCUIT TO GRD RETER TO PERFORMANCE DIAGNOSTICS OPEN CIRCUIT BANK #1 OPEN CIRCUIT BANK #2 SHORTED CIRCUIT BANK #1 SHORTED CIRCUIT BANK #2 ENGINE HAMESS INJECTOR HARNESS OR ECM PROBLEM INCORRECT ECM OR STRATEGY FOR ENGINE COMPONENTS CHANGED IN THE FIEL NOT COMPATIBLE ECM NOT PROGRAMMED BUT INSTALLED ON TRUCK ECM NOT PROG PROPERTY INTERNAL ECM PROBLEM ECM NOT PROGRAMMID PROPERTY PROGRAMMINGPROBLE INTERNAL ECM PROBLEM SEE ECM_PWR CIRCUIT DIAGNOSTICS INTERNAL ECM PROBLEM INTERNAL ECM PROBLEM PROGRAMMING PROBLEM PROGRAMMING PROBLEM INTERNAL ECM PROBLEM PROGRAMMING PROBLEM ECM NOT PROGRAMMED INTERNAL ECM PROBLEM
