FAULT CODE INFORMATION for ENGINES Flash Code/ Lamp REASON EFFECT (Only when fault code is active) APPLICATION 111* ECM internal hardware error. Possible no effect or engine may run rough or not start. 115* 121* 122 123 131 132 135 141 143 144 145 146 151 No engine speed or position signal detected at pin No. 17 of the engine harness. Engine power derates. Possible white smoke. No engine speed or position signal detected at pin No. 9 of the engine harness. No engine speed and position backup for main speed/position sensor. ISC, ISL High voltage detected at the boost pressure sensor signal pin No. 45 of the engine harness. Engine will derate to no-boost fueling. Low voltage detected at boost pressure sensor signal pin No. 45 of the engine harness. Engine will derate to no-boost fueling. High voltage detected at throttle position signal pin No. 30 of the OEM harness. Low voltage detected at throttle position signal pin No. 30 of the OEM harness. High voltage detected at oil pressure signal pin No. 33 of the engine harness. Low voltage detected at oil pressure signal pin No. 33 of the engine harness Oil pressure signal indicates oil pressure below the low engine protection limit. High voltage detected at coolant temperature signal pin No. 23 of the engine harness. Low voltage detected at coolant temperature signal pin No. 23 of the engine harness. Coolant temperature signal indicates coolant temperature has exceeded the minimum engine protection limit. Coolant temperature signal indicates coolant temperature has exceeded the engine protection limit. Engine idles when idle validation switch indicates idle and ramps up to a default set speed when the idle validation switch indicates off idle. Engine idles when idle validation switch indicates idle and ramps up to a default set speed when idle validation switch indicates off-idle. Default value used for oil pressure. No engine protection for oil pressure. Default value used for oil pressure. No engine protection for oil pressure. Default value used for coolant temperature. No engine protection for coolant temperature. Default value used for coolant temperature. No engine protection for coolant temperature. Power derate and possible engine shutdown if engine protection shutdown feature is enabled. Page 1 of 8
FAULT CODE INFORMATION for ENGINES 153 High voltage detected at intake manifold temperature signal pin No. 34 of the engine harness. Default value used for intake manifold temperature. No engine protection for intake manifold temperature. Flash Code/ Lamp REASON EFFECT (Only when fault code is active) APPLICATION 154 155 191 221 222 234 235 Service Engine 241 242 243 245 261* 263 Low voltage detected at intake manifold temperature signal pin No. 34 of the engine harness. Intake manifold air temperature signal indicates intake manifold air temperature is above the engine protection limit. Default value used for intake manifold temperature. No engine protection for intake manifold temperature. A/C Clutch driver signal indicates a short to ground when commanded on. Can not turn on A/C High voltage detected at ambient air pressure signal pin No. 32 of the engine harness. Engine power derate. ISC, ISL Low voltage detected at ambient air pressure signal pin No. 32 of the engine harness. Engine power derate. ISC, ISL Engine speed signal indicates engine speed has exceeded the overspeed limit. Fuel to injectors disabled until engine speed falls below the overspeed limit. Coolant level signal at pin No. 37 of the engine harness indicates coolant level is low. Vehicle speed signal on pin Nos. 8 and 18 of the OEM harness has been lost. Invalid or inappropriate vehicle speed signal indicated on pin Nos. 8 and 18 of the OEM harness indicating on intermittent connection or possible tampering. Engine speed limited to Max. Engine Speed without VSS. Cruise control, gear-down protection and the read speed governor will not work. Trip information data that is based on mileage will be incorrect. Engine speed limited to Max. Engine Speed without VSS. Cruise control, gear-down protection and road speed governor will not work. Trip information data that is based on mileage will be incorrect. Error detected in exhaust brake relay enable circuit at pin No. 42 of the engine harness. Exhaust brake will not work. Error detected in fan clutch relay enable circuit at pin No. 31 (ISB) and pin No. 41 (ISC) of the engine harness. Electronic control module (ECM) cannot control the engine cooling fan. Fan will remain on or off. VP44 Fuel Pump Control Module indicates the fuel temperature has exceeded the engine protection limit. Power derate. ISB High voltage detected at fuel temperature signal pin No. 35 of the engine harness. Default value used for fuel temperature. Possible low power. ISC, ISL Page 2 of 8
FAULT CODE INFORMATION for ENGINES 264 265 268* High or low voltage detected at the fuel temperature sensor signal circuit inside the VP44 pump controller. Default value used for fuel temperature. Possible low power and no engine protection for fuel temperature. Low voltage detected at fuel temperature signal pin No. 35 of the engine harness. Default value used for fuel temperature. Possible low power. ISC, ISL Fuel pressure in the accumulator is not changing with engine operating conditions. Power derate. Engine may run rough. ISC, ISL ISB Flash Code/ Lamp REASON EFFECT (Only when fault code is active) APPLICATION 271 Yellow 272 273 274 275 276 277* 278* 279 281 282 283 Low or no current detected on front pumping control valve return pin No.21. (Set only during control valve click test) Low power. Poor Performance ISC, ISL High current detected on front pumping control valve return pin No. 21. Low power. Poor performance. Possible damage to the ECM. ISC, ISL Low or no current detected on rear pumping control valve return pin No. 15. (Set only during control valve click test) Low power. Poor performance. ISC, ISL High Current detected on rear pumping control valve return pin No. 15. Low power. Poor performance. Possible damage to the ECM. ISC, ISL Engine ECM has detected a failure in the front pumping element. Low power. Poor performance. ISC, ISL High current detected on injection control valve return pin No. 7. Injection Control Valve is shut down and engine will not run. Possible ECM damage. ISC, ISL Engine ECM has detected a failure in the injection control valve. Low power. Engine may not run. ISC, ISL Error detected in lift pump circuit at pin 11 of the engine harness. Possible low power. Engine may die, run rough or be difficult to start. Low or no current detected on injection control valve return pin No. 7. (Set only during control valve click test) Low power. Engine may not run. ISC, ISL Engine ECM has detected a failure in the front pumping element. Possible no effect or engine power derate. ISC, ISL Engine ECM has detected a failure in the rear pumping element. Possible no effect or engine power derate. ISC, ISL High voltage detected at main engine speed/position sensor voltage supply pin 8 of the engine harness. ECM will use the VP44 pump speed (ISB) or the engine position signal (ISC,ISL) as a backup. Possible white smoke and power loss. Page 3 of 8
FAULT CODE INFORMATION for ENGINES 284 285 286 287 288 319 Service Engine 328 329* 352 Low voltage detected at main engine speed/position sensor voltage supply pin 8 of the engine harness. ECM will use the VP44 pump speed (ISB) or the engine position signal (ISC,ISL) as a backup. Possible white smoke and power loss. The software has detected an error due to a parameter timeout on the multiplexed data bus. At least one mux device will not work properly. Engine may idle only. The software indicates that the multiplexed data bus is not erroneous but is invalid. Engine will idle only. The software indicates that the multiplexed data is not valid and erroneous for the accelerator pedal sensor. Engine will idle only. The software indicates that the multiplexed data is not valid and erroneous for the remote throttle. Engine will not respond to remote throttle. Power to the real time clock has been interrupted and its setting is no longer valid. Time stamp in ECM power down data will be incorrect. Engine ECM has detected a failure in the rear pumping element. Low power. Engine may not run. Engine ECM has detected an over pumping failure in the CAPS pump. Low voltage detected at engine position sensor +5 volt supply, pin No. 10 of the engine harness. Instability at idle accompanied by low power or extremely poor performance and severe black smoke. Engine may shutdown. ISC, ISL Default value used for sensors connected to this +5 volt supply. Engine will derate to no-boost fueling and loss of engine protection for oil pressure. Intake manifold pressure and coolant temperature. 361 Continuous power detected at VP44 fuel control valve. Fueling to injectors disabled. Engine dies. ISB 362 363 364* 365 366 Low voltage or no voltage detected at the VP44 fuel control valve. Engine will lose power and may shut down. ISB No fuel control valve movement detected by the VP44 pump controller. Engine power loss. ISB No communications or invalid data transfer rate detected on date link between ECM and VP44 pump controller at pins 4 and 13 of the engine harness. Engine will run at a backup mode set speed when throttle is off idle. ISB Low voltage detected at VP44 pump controller supply voltage circuit. Engine may lose power and may shut down. ISB VP44 pump controller battery voltage measurement is outside the range between 6 and 24 volts. Engine will lose power and may shut down. ISB Page 4 of 8
FAULT CODE INFORMATION for ENGINES 367 368 369 372* 373 VP44 pump speed/position sensor signal lost. Fueling to injectors is disabled and engine will shutdown. ISB The VP44 pump can not achieve the timing value being commanded by the ECM. Significant engine power loss. ISB VP44 pump controller does not detect engine position pulse at pin No. 7 of the engine harness. Significant engine power loss. Possible white smoke. ISB VP44 pump controller detects continuous voltage at idle select pin No. 16 of the engine harness...or...pump controller detects an open circuit or short circuit to ground at idle select pin 16 of the engine harness. If communication is lost between the ECM and VP44 pump controller, engine will either only idle or will be stuck at a slightly higher set speed, regardless of throttle position. High voltage detected at VP44 fuel shut off signal pin No. 6 of the engine harness. Fueling to injectors disabled. Engine will shut down. ISB 374* VP44 pump controller has detected an internal error. Engine power derate or engine may die. ISB 376* No calibration in the VP44 pump controller. Fueling to injectors disabled. Engine will shut down. ISB 377 381* 382* 385 386 387 391 415 VP44 pump controller is not powering down when key switch power is removed from the engine control module. Equipment batteries may be drained low during long shutdown periods. ISB Error detected in cold start aid relay 1 enable circuit at pin No. 41 of the OEM harness. Error detected in cold start aid relay 2 enable circuit at pin No. 31 of the OEM harness. Intake air heater can not be fully energized by the ECM. Possible white smoke and/or hard starting. Intake air heater can not be fully energized by the ECM. Possible white smoke and/or hard starting. ISB High voltage detected at OEM harness sensor supply pin No. 10 of the OEM harness. Sensors connected to this +5 volts supply will not function. High voltage detected at the engine harness sensor +5 VDC supply pin No. 10 of the engine harness. High voltage detected at the throttle position sensor +5 VDC supply pin No. 29 of the OEM harness. Default value used for sensors connected to this +5 volts supply. Engine will derate to no-boost fueling and loss of engine protection for oil pressure, intake manifold temperature, and coolant temperature. Engine idles when idle validation switch indicates idle and ramps up to a default set speed when idle validation switch indicates off-idle. Error detected in VP44 power supply relay enable circuit at pin No. 43 of the engine harness. Possible no effect on performance or engine may die. ISB Oil pressure signal indicates oil pressure below the very low engine protection limit. Page 5 of 8
FAULT CODE INFORMATION for ENGINES 418 WIF 422 429 431 432 433 Yellow 434* 441 442 443 444 449 Water-in-fuel signal indicates the water in the fuel filter needs to be drained. Excessive water in the fuel can lead to severe fuel system damage. Voltage detected simultaneously on both the coolant level high and low signal pins No. 27 and 37 of the engine harness...or... no voltage detected on either pin. (Fault is active for Switch type coolant level sensors only) No engine protection for coolant level. Low voltage detected at water-in-fuel signal pin 40 of the OEM harness. No water-in-fuel protection. Idle validation signals on pins No. 25 and 26 of the OEM harness indicate no voltage detected simultaneously. No effect on performance, but loss of idle validation. Idle validation signal at pin No. 26 of the OEM harness indicates the throttle is at the idle position when the throttle position signal at pin No. 30 of the OEM harness indicates the throttle is not at the idle position...or...idle validation signal at pin No. 26 of the OEM harness indicates the throttle is not at the idle position when the throttle position signal at pin No. 30 of the OEM harness indicates the throttle is at the idle position. Engine will only idle. Boost pressure signal indicates boost pressure is high when other engine parameters (i.e. speed and load) indicate boost pressure should be low. Possible over fueling during acceleration. Increase in black smoke. Supply voltage to the ECM fell below 6.0 volts for a fraction or a second...or... the ECM was not allowed to power down correctly (retain battery voltage for 30 seconds after key start) Possible no noticeable performance effects...or... engine dying or hard starting. Fault information, trip information, maintenance monitor data, trending data, and user activated data logger data may bee inaccurate. Voltage detected at ECM power supply pins No. 38, 39, and 40 of the engine harness indicates the ECM supply voltage fell below 6 volts. Engine will die or run rough. Voltage detected at ECM power supply pins 38, 39, and 40 (and pin No. 50 for ISC, ISL) of the engine harness indicates the ECM supply voltage is above the maximum system voltage level. None on performance. Low voltage detected at throttle position sensor +5 volts supply pin No. 29 of the OEM harness. Low voltage detected at OEM harness sensor +5 volts supply pin No. 10 of the OEM harness. Fuel pressure signal indicates that fuel pressure has exceeded the maximum limit for the given engine rating. Engine idles when idle validation switch indicates idle and ramps up to a default set speed when idle validation switch indicates off-idle Sensors connected to this +5 volts supply (i.e. remote throttle position sensor) will not function. Fuel pumping is stopped until pressure returns to normal. Possible fuel pump damage may result. ISC, ISL Page 6 of 8
FAULT CODE INFORMATION for ENGINES 451 452 488 493 515 516 517 529* 539 551 591 592 593 594 599 High voltage detected at fuel pressure sensor signal pin No. 46 of the engine harness. Low power, reduced performance. ISC, ISL Low voltage detected at fuel pressure sensor signal pin No. 46 of the engine harness. Low power, reduced performance. ISC, ISL Intake manifold temperature signal indicates intake manifold temperature is above the minimum engine protection threshold. Power derate and possible engine shutdown if engine protection shutdown feature is enabled. ECM has detected a circuit failure on the Injection Control Valve Identifier circuit. Small power loss. ISC, ISL High voltage detected at the auxiliary +5 sensor supply voltage pin No. 49 of the engine harness. No engine protection for coolant level. Low voltage detected at the auxiliary +5 volts sensor supply voltage pin 49 of the engine harness. No engine protection for coolant level. A mechanically stuck fuel control valve has been detected by the VP44 fuel pump controller. Engine may shutdown. ISB Error detected in the Dual Output B circuit pin No. 1 of the engine harness (ISC) or pin No. 21 of the engine harness (ISB). The device being controlled by the Dual Output Driver B signal will not function properly. Open circuit failure of the Injection Control Valve transorb pin No. 6 of the engine harness. Low power, possible ECM damage. ISC, ISL Idle validation signals on pins No. 25 and 26 of the OEM harness indicate voltage detected simultaneously on both pins. Engine will only idle. High voltage detected at the exhaust pressure sensor signal pin No. 43 of the engine harness. Low voltage detected at the exhaust pressure sensor signal pin No. 43 of the engine harness. Default value used for exhaust pressure. Engine will be limited to no-boost fueling. Default value used for exhaust pressure. Engine will be limited to no-boost fueling. VGT speed signal on pin No. 4 of the engine harness indicates the VGT has exceeded the maximum limit. Reduce turbo charger speed. No fueling derate. ISL VGT speed signal on pin No. 4 of the engine harness indicates the VGT speed is below the minimum limit. No effect. ISL The duel output feature is a customer specialized calibration and it has initiated an engine shutdown based on the customer s specified operating conditions, engine sensor Engine will shutdown ISL ISL Page 7 of 8
FAULT CODE INFORMATION for ENGINES 768 value, and/or OEM inputs to the ECM Error detected in the Output Device Driver (VGT or Transmission Shift Modulation Signal) signal pin No. 21 on the OEM harness. Cannot control the VGT or Transmission, depending on application. 779 Low or no voltage detected at the OEM switch. Engine will lose power and may shut down. Page 8 of 8