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【Maintenance instructions】Hovor Dieiesel: the most complete diesel EFI high pressure common rail system dedicated fault codes collection of essential

Mar. 21, 2023

Hovor Dieiesel's partners, last week we shared with you the special fault codes for diesel EFI high pressure common rail system, I don't know if you have collected reproduced, today I continue to share with you!



P0335 no crankshaft sensor signal


P0336 wrong crankshaft sensor signal


P0340 no phase sensor signal


P0341 wrong phase sensor signal


P0380ECU does not request preheat plug to work, but the preheat plug actually works


P0382ECU requests preheat plug to work, but preheat plug does not actually work


P0383ECU control wire to preheat plug shorted to ground


P0384ECU control wire to preheat plug shorted to high


P0401 Actual fresh air intake is greater than the target intake set by the EGR system


P0402 Actual fresh air intake is less than the target intake set by the EGR system


P0403 ECU internal drive module for EGR valve actuator control line overheated


P0404EGR valve actuator control line open circuit


P0405EGR valve position sensor voltage exceeds lower limit (short circuit to ground in connecting wire)


P0406EGR valve position sensor voltage exceeds upper limit (open connection or short to high level)


P0475 Exhaust brake valve control wire open


P0476 ECU internal drive module for exhaust brake valve control line


P0477 Exhaust brake valve control wire shorted to ground


P0478 Exhaust brake valve control wire short to high


P0480 ECU control wire to fan one open


P0481ECU control line to fan two open


P0483ECU control line to fan one internal drive module overheated


P0484 ECU to Fan II control line internal drive module overheated


P0487 Open circuit in throttle actuator control line


P0488 ECU internal drive module for throttle valve actuator overheated


P0489EGR valve actuator control wire short to ground


P0490EGR valve actuator control wire short to high


P0500 Speed sensor acquisition hardware error


P0501 Speed sensor signal not credible


P0503 Speed sensor exceeds maximum value


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