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QSB5.9-44 CM550 |
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Fault Code |
Description |
|
111 |
ECM internal hardware error. |
|
115 |
No engine speed signal detected at pin 17 of the engine harness. |
|
122 |
High voltage detected at the boost pressure sensor signal pin-45 of the engine harness. |
|
123 |
Low voltage detected at the boost pressure sensor signal pin 45 of the engine harness. |
|
131 |
High voltage detected at accelerator position signal pin 30 of the OEM harness. |
|
132 |
Low voltage detected at accelerator position SIGNAL pin 30 of the OEM harness. |
|
133 |
High voltage detected at the remote throttle position signal circuit. |
|
134 |
Low voltage detected at the remote throttle position signal circuit. |
|
135 |
High voltage detected at oil pressure sensor signal pin 33 of the engine harness. |
|
141sn |
Low voltage detected at oil pressure sensor signal pin 33 of the engine harness. |
|
141sw |
Low voltage detected on pin 47 of the engine harness. |
|
143sn |
Oil pressure signal indicates oil pressure below the low engine protection limit. |
|
143sw |
Oil pressure signal indicates oil pressure below the low engine protection limit. |
|
144 |
High voltage detected at the coolant temperature signal pin 23 of the engine harness. |
|
145 |
Engine Coolant Temperature 1 Sensor Circuit - Voltage Below Normal or Shorted to Low Source - Low voltage detected at the coolant temperature signal pin 23 of the engine harness. |
|
146 |
Coolant temperature signal indicates coolant temperature has exceeded the minimum engine protection limit. |
|
151 |
Coolant engine temperature signal indicates coolant temperature has exceeded the engine protection limit. |
|
153 |
High voltage detected at intake manifold temperature signal pin 34 of the engine harness. |
|
153 |
Low voltage detected at intake manifold temperature signal pin 34 of the engine harness. |
|
155 |
Intake manifold air temperature signal indicates the intake manifold air temperature is above the engine protection limit. |
|
191 |
Air conditioner clutch signal indicates a short to ground when commanded on. |
|
221 |
High voltage detected at the ambient air pressure sensor signal pin 32 of the engine harness. |
|
222 |
Low voltage detected at the ambient air pressure sensor signal pin 32 of the engine harness. |
|
234 |
Engine speed signal indicates engine speed has exceeded the overspeed limit. |
|
235 |
Coolant level signal at pin 37 of the engine harness indicates coolant level is low. |
|
241 |
Vehicle speed signal on pins 8 and 18 of the original equipment manufacturer's (OEM) harness has been lost. |
|
242 |
Invalid or inappropriate vehicle speed signal detected on pins 8 and 18 of the original equipment manufacturer's (OEM) harness indicating an intermittent connection or possible tampering. |
|
243 |
Error detected in exhaust brake relay enable circuit at pin 42 of the engine harness. |
|
245 |
Error detected in fan clutch relay enable circuit at pin 31 of the engine harness. |
|
261 |
Fuel temperature signal indicates fuel temperature has exceeded the engine protection limit and/or pump protection limit. |
|
264 |
High or low voltage detected at the fuel temperature sensing circuit inside the VP44 fuel pump controller for 2 seconds. |
|
278ford |
Error detected in lift pump circuit at pin 11 of the engine harness. |
|
278other |
Error detected in lift pump circuit at pin 11 of the engine harness. |
|
283 |
High voltage detected at main engine speed sensor voltage supply pin 8 of the engine harness. |
|
284 |
Low voltage detected at main engine speed sensor voltage supply pin 8 of the engine harness. |
|
285 |
The ECM expected information from a multiplexed device but did not receive it soon enough, or did not receive it at all. |
|
286 |
The ECM expected information from a multiplexed device but only received a portion of the necessary information. |
|
297 |
High voltage detected at the original equipment manufacturer's (OEM) pressure sensor signal. |
|
298 |
Low voltage detected at the original equipment manufacturer's (OEM) pressure sensor signal. |
|
349 |
The auxiliary speed or auxiliary pressure indicates the frequency is above a calibrated threshold value. |
|
352 |
Low voltage detected at +5-VDC supply, pin 10 of the engine harness. |
|
361 |
Incorrect current detected at the VP44 fuel pump control valve, which indicates that it can be continuously energized. |
|
362 |
Low voltage or no voltage detected at the VP44 fuel pump control valve, which indicates that the valve will not close for a shorter duration. |
|
363 |
Slow or no fuel control valve movement detected by the VP44 fuel pump as determined by the valve driver circuit inductive kickback pulse. |
|
364 |
No communications or invalid data transfer rate detected on datalink between the ECM and VP44 fuel pump control module at pins 4 and 13 of the engine harness. |
|
365 |
Low voltage detected at VP44 pump controller supply voltage circuit. |
|
366 |
VP44 fuel pump controller battery voltage measurement is outside the pump signal range check limits. |
|
367 |
VP44 fuel pump speed/position signal is lost. |
|
368 |
The VP44 fuel pump can not achieve the timing value being commanded by the engine electronic control module (ECM) due to an internal pump problem. |
|
369 |
VP44 pump controller does not detect engine position pulse at pin 7 of the engine harness ECM connector. |
|
372 |
The VP44 pump controller detects continuous voltage at idle select pin 16 of the engine harness, or the pump controller detects an open circuit or short circuit to ground at idle select pin 16 of the engine harness. |
|
373 |
High voltage detected at the VP44 fuel shutoff signal pin 5 of the engine harness, pump connector end. |
|
374 |
VP44 fuel pump controller has detected a calibration error, electrically erasable programmable read-only memory error, random-access memory problem, or an electrical or hardware problem in the fueling solenoid circuit. |
|
375 |
The engine ECM is commanding a fueling or timing value that the VP44 fuel pump can not achieve. |
|
376 |
The speed measured by the VP44 pump controller is different from the speed measured by the engine controller by more than a calibratable amount. The VP44 pump controller is commanding fuel while the engine controller is requesting no fuel delivery. |
|
377 |
VP44 pump controller is not powering down when keyswitch power is removed from the electronic control module (ECM). |
|
381 |
Error detected in the cold start air relay 1 enable circuit at pin 41 of the original equipment OEM harness. |
|
382 |
Error detected in the cold start air relay 2 enable circuit at pin 31 of the OEM harness. |
|
385 |
High voltage detected at remote accelerator position sensor supply pin 10 of the original equipment manufacturer (OEM) harness. |
|
386 |
High voltage detected at +5-VDC supply, pin 10 of the engine harness. |
|
387 |
High voltage detected at accelerator position sensor supply pin 29 of the original equipment manufacturer's (OEM) harness. |
|
391 |
Short to ground detected in VP44 power supply relay enable circuit at pin 43 of the engine harness. |
|
415sn |
Oil pressure signal indicates oil pressure below the very low engine protection limit. |
|
415sw |
Oil pressure signal indicates oil pressure below the very low engine protection limit. |
|
418 |
Water-in-fuel (WIF) signal indicates water in the fuel filter needs to be drained. |
|
422 |
Voltage detected simultaneously on both the coolant level high and low signal pins 27 and 37 of the engine harness, or no voltage detected on either pin. |
|
429 |
Low voltage detected at WIF signal pin 40 of the original equipment manufacturer (OEM) harness. |
|
431 |
Idle validation signals on pins 25 and 26 of the original equipment manufacturer's (OEM) harness indicate +5 VDC present at both pins 25 and 26. |
|
432 |
No voltage detected at pin 26 of the original equipment manufacturer's (OEM) harness indicates the accelerator is at the idle position when the accelerator position signal at pin 30 of the OEM harness indicates the accelerator is not at the idle position, or idle validation signal at pin 26 of the OEM harness indicates the accelerator is not at the idle position when the accelerator position signal pin 30 of the OEM harness indicates the accelerator is at the idle position. |
|
433 |
Boost pressure signal indicates boost pressure is high when other engine parameters (i.e., speed and load) indicate boost pressure should be low. |
|
434 |
Supply voltage fell below (+) 6.2 VDC for a fraction of a second, or the electronic control module (ECM) was not allowed to power down correctly (retain battery voltage for 30 seconds after key-off). |
|
441 |
Voltage detected at electronic control module (ECM) power supply pins 38, 39, and 40 of the engine harness indicates ECM supply voltage fell below (+) 6 VDC. |
|
442 |
Voltage detected at electronic control module (ECM) power supply pins 38, 39, and 40 of the engine harness indicates ECM supply voltage is above the maximum system voltage level. |
|
443 |
Low voltage detected at accelerator position sensor supply pin 29 of the OEM harness. |
|
444 |
Low voltage detected at remote accelerator position sensor supply pin 10 of the OEM harness. |
|
488 |
Intake manifold air temperature signal indicates the intake manifold air temperature is approaching the engine protection limit. |
|
489 |
The auxiliary speed or auxiliary pressure indicates the frequency is below a calibrated threshold value. |
|
515 or 516 |
FC 515: High voltage detected at the coolant level +5-VDC sensor supply voltage pin 49 of the engine harness. OR FC 516: Low voltage detected at the coolant level +5-VDC sensor supply voltage pin 49 of the engine harness. |
|
517 |
A mechanically stuck VP44 fuel control valve has been detected by the VP44 fuel pump controller. |
|
524 |
Error detected on the high-speed governor droop selection switch. |
|
527 |
A problem was detected with the dual-output driver A circuit. |
|
528 |
Error detected on the torque curve selection switch. |
|
529 |
Error detected in the dual-ouput driver B circuit. |
|
768 |
Error detected in the output device driver (transmission shift modulation signal) signal pin 21 on the original equipment manufacturer's (OEM) harness. |
|
779 |
OEM input signal indicates OEM value has exceeded the engine protection limit or Fuel Pressure Switch indicates a loss of positive pressure at the fuel filter outlet. |