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Sinotruk Howo Fault Codes.


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Sinotruk Howo Fault Codes.



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Indicator Light Fault Code Meaning of Fault Code ECU Reaction Possible Fault Position Engine Performance
23 P0228 PTO pedal signal is too low No indicator light, stop PTO 23AD10 signal line open circuit TPO function failure.
P0227 PTO pedal signal is too high Indicator light on, stop PTO 23AD10 signal line is shorted to 65A-VCC5
 
Indicator Light Fault Code Meaning of Fault Code ECU Reaction Possible Fault Position Engine Performance
37 P0238 The intake air pressure sensor signal is too high Turn on the fault light and stop cruising. 128AD3 signal line is shorted to 57A-VCC4 The output power is insufficient, the engine is boring, especially when truck is fully loaded.
P0237 The intake air pressure sensor signal is too low Turn on the fault light and stop cruising. 128AD3 signal line open circuit
P0236 Invalid intake pressure sensor performance No lights, stop cruising Load a varying 5V internal voltage on the 128AD3 signal line  
 
Indicator Light Fault Code Meaning of Fault Code ECU Reaction Possible Fault Position Engine Performance
67 P0193 Common rail pressure sensor signal is too high Indicator light on, stop cruising, limit fuel 70%, limit rail pressure 80% 121AD4 and 132AD5 signal lines are open at the same time Insufficient output power, deterioration of emission performance (black smoke), and increased engine noise.
P0192 Common rail pressure sensor signal is too low Indicator light on, stop cruising, limit fuel 70%, limit rail pressure 80% The 121AD4 and 132AD5 signal lines are short-circuited to 134A-GND1 at the same time
P0191 Common rail pressure sensor signal maintains mid-range Indicator light on, stop cruising, limit fuel 70%, limit rail pressure 80% The sensor is damaged and the output voltage remains unchanged
 
Indicator Light Fault Code Meaning of Fault Code ECU Reaction Possible Fault Position Engine Performance
26 P0563 Vehicle voltage is too high Light up Internal voltage VBB>4V means system voltage>32V Poor starting performance.
P0562 Vehicle voltage is too low No light up Internal voltage VBB<1.9V means system voltage<15V
 
Indicator Light Fault Code Meaning of Fault Code ECU Reaction Possible Fault Position Engine Performance
11 P0118 Water temperature sensor signal is too high Turn on the light and stop cruising. 155AD7 signal line open circuit Deterioration of noise and white smoke.
P0117 Water temperature sensor signal is too low Light up, stop cruising, 70% fuel limit 155AD7 signal wire signal wire is shorted to 55A-GND5
 
Indicator Light Fault Code Meaning of Fault Code ECU Reaction Possible Fault Position Engine Performance
14 P0183 Oil temperature sensor signal is too high Light up 162AD8 signal line open circuit No obvious performance.
P0182 Oil temperature sensor signal is too low Light up 162AD8 signal wire is shorted to 55A-GND5



More Pages:

How to Drive a Sinotruk Howo Truck --Shift Gears for All Howo Gearboxes

Sinotruk Howo Truck Parts List & Prices.

Howo Truck Bracket & Support List.