List of fault codes for the Howo fuel system

Diagnostic Flashing CodeFault Code Description Actions of Block (Ecu) Fault Manifestation of Malfunction:
1 P1683 Short Circuit Short On Mass Additional Motor brake Output Alarm Off The “mass” of the output OUT6 37 The motor brake function is not working well.
1 P1684 SC on battery Complementary Motor Brake Output Alarm Burns KZ +In the exit OUT6 37 The motor brake function is not working well.
2 P1602 Code data Qr Have not been entered Alarm Burns Code data Qr Have not been entered (all equal zero) Lower output power and Increase of toxic emissions, increase of engine noise and emissions of white Smoke
2 P0602 Data Code Qr Wrong Alarm Burns Code size Qr Incorrect Eeprom) KqrswShows 0, 1, 2 Lower output power and Increase of toxic emissions, increase of engine noise and emissions of white Smoke
2 P1601 Defining data for code Qr Incorrect (change definition Code Qr Wrong Alarm not lit, the system does not work Defining data For Code Qr Incorrect (for example, wrong order 40.80, 120,140). This will not happen in mass production. Lower output power and Increase of toxic emissions, increase of engine noise and emissions of white Smoke
3 P0607 Fault Cpu. Monitor the malfunction of the integrated circuit. The alarm is lit, the cruiseControl does not work, RTO stopped, fuel supply limit 70%. Malfunction of the additional Cpu (Monitoring the computer of the main Ecu) Lower output power and Increased toxic emissions, increased engine noise and engine stalls
3 P0606 Fault Cpu, malfunction of the main Cpu Alarm Burns Cruise control is not It’s working Rto MtplNovilos, fuel supply limit 70%. Malfunction of the main Cpu (Getting Signal Additional faults Ecu) Reduced output power and increased toxic emissions, increased engine noise and engine stalls
3 P0601 Check the area specified by the flashing code and errors Alarm Burns Cruise control is not It’s working Rto MtplNovilos, fuel supply limit 70%. Ecu Constantly spends Circular Check the area specified by the flashing code Reduced output power and increased toxic emissions, increased engine noise, and engine stalls
5 P0686 Malfunction of the main relay Relay Zaliplo in Closed Able Alarm Burns When the relay does not work, the voltage is above 16 v. When the ignition is switched off, the fault alarm continues to burn
6 P0217 Coolant temperature exceeds upper limitAlarm not lit, cruise control is not Works, LimitedFuel supply 70%. The coolant temperature exceeds the upper limit of 107 C. Overheating
7 P0219 Engine Exceeds Limit Momentum Alarm Malfunction Not lit And cruise control is disabledWarning When Speed exceeds 3000; When FrequencyRotation Below 2800, Warning DisappearsThere are no obvious malfunctions (when the engine speed is Above 2900 rpm)
8 U0073 Error ECU CAN1 Alarm Off “Mass” of wires 157 CAN1Hand 158 CAN1L
9 U1001 Error ECU CAN2 Alarm Burns“Mass” of wires 95 CAN2H And 96 CAN2L
9 U0121 Abs Disconnected from the bus CANThe fault alarm is lit and the cruise control is disconnected Abs Disconnected from the bus CAN
9 U0155 Device CAN Disconnected From Tires CANThe fault alarm is lit and the cruise control is disconnected Device CAN Disconnected from the bus CAN
11 P0118 High coolant temperature sensor signal The fault alarm is lit and the cruise control is disconnected Break Signal wire Circuit 155Ad7 Noise and white smoke emissions increase
11 P0117 Low temperature sensor signal Cooling LiquidAlarm Burns Cruise control is not Works, LimitedFuel supply of 70%. EMCO on 55A-GND5Signal Wires 155Ad7 Noise and white smoke emissions increase
12 P0342 Sensor G does not yield ripples The fault alarm is lit and Kruizkontrol Disables Gap Chain 120g Unstable idling speed and poor start-up (possibly with black smoke ejection)
13 P0337 Sensor Ne does not yield ripples Fault alarm lights, cruise control Disables And FCCB Disables Gap Chain 40ne + Unstable idle, poor engine start (possibly with black smoke) and engine Stalls.
13 P0385 No sensor pulses Ne And GThe fault alarm is lit, the cruise control is switched off, FCCB Disables Pto Switched off and the motor brake is switched off Simultaneous chain break 40Ne+ and 120G Unstable idle, poor engine start (possibly with black smoke) and engine Stalls.
14 P0183 High oil temperature sensor signal Alarm Burns Break Signal wire Circuit 162Ad8 No visible signs of malfunction
14 P0182 Low oil temperature sensor signal Alarm Burns EMCO on 55A-GND5Signal Wires 162Ad8 No visible signs of malfunction
15 P2229 High atmospheric pressure sensor signal Alarm Burns SC on 5v internal wire signal EcuIncrease of white smoke emission, decrease of power, increase of emission toxicity, low engine power on horizontal road
15 P2228 Low atmospheric pressure sensor signal Alarm Burns “Mass” of the internal signal wire Ecu Increase of white smoke emission, decrease of power, increase of emission toxicity, low engine power on horizontal road
16 P0113 High ambient air temperature sensor signal Alarm Burns Break Signal wire Circuit 32Ad16 Increase Toxic Emissions
16 P0112 Low ambient temperature sensor signal Alarm Burns EMCO on 55A-GND5Signal Wires 32Ad16 Increase Toxic Emissions
17 P0523 High signal electronic pressure sensor of motor oilAlarm Burns Cruise control is not Works, LimitedFuel supply of 70%. Emco Of 57 A-VCC4 24 ad12 Reduced engine power and increased fuel consumption
17 P0522 Low signal of motor oil pressure electronic sensorAlarm Burns Cruise control is not Works, LimitedFuel supply of 70%. Short Circuit 24 ad12 Reduced engine power and increased fuel consumption
17 P0524 Low Pressure Motor Oil The alarm is lit, the cruise control does not work, the RTO does not work, Limited tion 70% fuel supply. Low motor oil pressure (defined Mpoilthl_D) Reduced engine power and increased fuel consumption
21 P0503 High frequency car speed signal The alarm is lit and Cruise control The switch off Input Signal 27Vs1 above normal sensor frequency Vs The cruise control function can not be used on the car.The speed shown by the speedometer is different from the actual rate.
21 P0502 Or circuit break at the sensor inlet Speed Car The alarm lights up and the cruise-Control off Chain Break 27Vs1 and Kz On Mass Or+B It does not matter if this Code Flashing is served on the stand with running drums (stand is not connected to the sensor)
21 P0501 Wrong car speed sensor signal The alarm lights up and the cruise control is switched off Constant on/off state Entrance 27Vs1 It does not matter if this Code Flashing is served on the stand with running drums (stand is not connected to the sensor)
22 P0122 Low sensor signal Provisions Accelerator pedal 1 The alarm light is on and the cruise control is switched off Signal Wire chain Break 21Ad1 Poor quality mounts, low engine power, low engine speed, no function work Motor Brake
22 P0123 High sensor signal Provisions Accelerator pedal 1 The alarm light is on and the cruise control is switched off EMCO on 125A-Vcc2Signal Wires 21Ad1 Poor quality mounts, low engine power, low engine speed, no function work Motor Brake
22 P0222 Low sensor signal Provisions Accelerator pedal 2 The alarm light is on and the cruise control is switched off Signal wire chain Break 22Ad2 Poor quality mounts, low engine power, low engine speed, no function work Motor Brake
22 P0223 High sensor signal Provisions Accelerator pedal 2 The alarm is lit andCruise control Disables EMCO on 123A-Vcc3Signal Wires 22Ad2 Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes
22 P0121 Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes
22 P0221 Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes
22 P0120 Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes
22 P0220 Poor quality mounts, low power Engine, Low speed Engine does not work Motor function Brakes
22 P2120 Inefficient dual sensor position of the accelerator pedal The alarm is lit andCruise control Disables Simultaneous circuit break 21Ad1 and 22Ad2 Signal WiresPoor quality mounts, low power Engine, engine speed, does not work motor function Brakes
23 P0228 Low Signal From RtoAlarm Troubleshooting Minute Not lit and RTO not working Signal Wire Chain Break 23Ad10 Not It’s working Function Rto
23 P0227 High Signal From RtoAlarm The malfunction is lit and Rto Whats EMCO on 65A-Vcc5Signal Wires 23Ad10 Not It’s working Function Rto
25 P0541“Mass” of the output wire of the pre-heating relay Alarm BurnsKZ on Mass Exit 70 OUT19 And 71 OUT20 (WhenWork Glow Heating) Cold engine runs poorly
25 P0542Rupture of the output circuit of the pre-heating/short-circuit relay on the battery Alarm Burns Exit circuit Break 70 OUT19 and 71 OUT20 or KZ on +B Cold engine runs poorly
26 P0563High voltage in the electric network of the car Alarm BurnsInternallyE Voltage VBB > 4 In the i.eНAprjazhenie Systemss > 32 in Engine BadAbout Starts
26 P0562Low voltage in the electric network of the car Alarm OffInternal tension VBB < 1, 9 In the i.eVoltage в System < 15 B Engine Not good Starts
28 P1681 Breaking the chain of motor brake or short circuit to “mass” Alarm Burns Gap Chain 36OUT5 и KzOn Mass The motor brake function cannot be used normally.
28 P1682Circuit on the battery of the motor brake control chain Alarm Burns KZ +In the exit 36OUT5The motor brake function cannot be used normally.
37 P0238 High inlet air pressure sensor signal Alarm Lit, and cruise controlDisables EMCO on 57A-Vcc4Signal Wires 128Ad3Low engine power, poor traction characteristics of the engine, especially at full load of the car.
37 P0237 Low ambient temperature sensor signal Alarm Lit, and cruise controlDisables Break Signal wire Circuit 128Ad3Low engine power, poor traction characteristics of the engine, especially at full load of the car.
37 P0236 Works poorly Inlet pressure sensor Air Fault alarm is not lit And Cruise control Disables 128 Signal WireAd3 is loaded with alternating internal voltage of 5 V.Low engine power, poor traction characteristics of the engine, especially at full load of the car.
39 P0234 Pressure sensor signal Inlet Air exceeds the upper limitThe alarm is not lit, Cruise control Does not work, the fuel supply limit is 70%. PIM>TBOPH (MAP)exceeds the upper limit
39 P0299 Pressure sensor signal Inlet Air below the lower limitAlarm not lit, Cruise control Does not work, the fuel supply limit is 70%. PIM<TBOPL (MAP)Above the upper limit
41 P0704 Fault in the chain of the limit switch of the clutch The alarm is lit andCruise control Disables Chain Break 77 Sw27 (Car speed> 80 km/h)Poor quality mounts (cruise control and motor brake not working, etc.)
43 P1565 Malfunction in Circuit Breaker Cruise control The fault alarm is lit andCruise control DisablesKz On +B Wire 79 switch Cruise Control 2Sw and 92 switch Cruise control 1Sw, Or you want to press During the Long time Abnormal Work Cruise- Control
44 P1143 High sensor signal Potentiometer Idle Alarm Off EMCO on 65A-Vcc5Signal Wires 30Ad14
44 P1142 Low sensor signal Potentiometer Idle Alarm Off Signal Wire Circuit Break 30Ad14
45 P0617 Emco Of AkbSwitch Ignition Alarm Burns Chain Break 48Sw2 and KZ on the supply voltage on the wire 48
46 P1530 Jamming switch Engine Stuck or Closed Alarm Burns 50SW4 ON Abnormal flame ejection from the engine
47 P0850 Circuit malfunction Switch neutral Transfer The alarm light is on and the cruise control is switched off Chain Break 66 Sw9 (speed Car > 80 km/h) Bad work functions RTO, cruise control, etc.
51 P0201 Rupture of the nozzle outlet circuit TWV1 and Detaching Electromagnetic Winding NozzlesAlarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%. Gap Chain 103 TWV1 Reduced output power and increased toxic emissions, increased engine noise
52 P0202 Rupture of the nozzle outlet circuit TWV5 and disconnection of the electromagnetic winding nozzleAlarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%. Gap Chain 105 twv5 Reduced output power and increased toxic emissions, increased engine noise
53 P0203 Rupture of the nozzle outlet circuit TWV3 and disconnection of the electromagnetic winding nozzleAlarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%. Gap Chain 104 Twv3 Reduced output power and increased toxic emissions, increased engine noise
54 P0204 Rupture of the nozzle outlet circuit TWV6 and disconnection of the electromagnetic winding nozzle Alarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%. Gap Chain 139 Twv6 Reduced output power and increased toxic emissions, increased engine noise
55 P0205 Rupture of the nozzle outlet circuit TWV3 and disconnection of the electromagnetic winding nozzle Alarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70%. Gap Chain 137 Twv2 Reduced output power and increased toxic emissions, increased engine noise
56 P0206 Rupture of the nozzle outlet circuit TWV4 and disconnection of the electromagnetic winding nozzleAlarm Burns Cruise control is not It’s working FCCB Not It’s working Feed limit Fuel 70 Gap Chain 138 TWV4 Lower output power and Increased toxic Emissions and increased engine noise
57 P2148 Circuit on the battery of the nozzle chain Com1/KZ on battery Outputs TWV1 3 и 5 Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%. Kz On +B Wires 106, 107 nozzles Com1 / Kz On +B On Wires 103, 104 and 105 Reduced output power and increased toxic emissions, increased engine noise
57 P2147 “Mass” of the nozzle chain Com1/KZ on the output battery TWV1, 3 and 5 Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%. “Mass” in points 106, 107 nozzles Com1 / Kz On +B в Points 103, 104 и 105 Reduced output power and increased toxic emissions, increased engine noise
57 P2146 Break the output circuit under the nozzle load Com1/Break the output circuit under load TWV1, 3, 5 Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%. Chain Break 106, 107 Nozzles Com1/Chain break 103, 104 и 105 Reduced output power and increased toxic emissions, increased engine noise
58 P2151 Circuit on the battery of the nozzle chain Com2/KZ on battery Outputs TWV2 4 и 6 Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%. Kz On +B Wires 142, 143 Nozzles Com2 / Kz On +B Wires 137, 138and 139 Reduced output power and increased toxic emissions, increased engine noise
58 P2150 “Mass” of the nozzle chain Com2/KZ on the output battery TWV2, 4 and 6 Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 50%. “Mass” of wires 142, 143 Nozzles Com2/short-circuit on the “mass” of wires 137, 138 and 105 Reduced output power and increased toxic emissions, increased engine noise
58 P2149 Break output circuit Under Load Com2/Load Break circuit TWV2, 4, and 6Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply Limit 50% Chain Break 142, 143 Nozzles Com2/Chain Break 137, 138 и 139Reduced output power and increased toxic emissions increase engine noise
59 P0611 Fault Chain Charge Condenser Alarm Burns Cruise control is not It’s working FCCB Not It’s working 50% fuel supply limit and low pressure limit Internal Fault Ecu Reduced output power and increased toxic emissions, increased engine noise
59 P0200 Fault Chain Charge Condenser Alarm Burns Cruise control is not It’s working FCCB Not It’s working Fuel supply limit 51% and low Limitations- tion Pressure Internal Fault Ecu Reduced output power and increased toxic emissions, increased engine noise
61 P0301 Circuit malfunction ToplivopoCylinder 1 Alarm Not lit, And the system does not work The nozzle is damaged, Injection No fuel (definitionBut FCCB) Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions
61 P0263 It’s working Damper Flow№1 Alarm not litAnd the system does not workThe damper starts to act and the nozzle stops injectioning the fuel
62 P0305 Circuit malfunction Toplivopo Cylinder Giving 5 Alarm not lit And the system does not work Nozzle damaged, no fuel injection (DetermineLeno FCCB) Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions
62 P0266 It’s working Damper Flow№5 Alarm not lit And the system does not workThe damper starts to act and the nozzle stops injectioning the fuel
63 P0303 Circuit malfunction Fuel Cylinder 3 Alarm not litAnd the system does not work Nozzle damaged, no fuel injection (DetermineLeno FCCB) Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions
63 P0269 It’s working Damper Flow № 3 Alarm not litAnd the system does not workThe damper starts to act and the nozzle stops injectioning the fuel
64 P0306 Circuit malfunction Fuel Cylinder 6 Alarm not litAnd the system does not work Nozzle damaged, no fuel injection (DetermineLeno FCCB) Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions
64 P0272 It’s working Damper Flow № 6 Alarm not litAnd the system does not workThe damper starts to act and the nozzle stops injectioning the fuel
65 P0302 Circuit malfunction Fuel Cylinder 2 Alarm not litAnd the system does not work Nozzle damaged, no fuel injection (DetermineLeno FCCB) Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions
65 P0275 It’s working Damper Flow № 2 Alarm not litAnd the system does not workThe damper starts to act and the nozzle stops injectioning the fuel
66 P0304 Fuel circuit malfunction Cylinder 4 Alarm not litAnd the system does not work Nozzle damaged, no fuel injection (DetermineLeno FCCB) Engine shaking at idle, low engine power at full load, increased fuel consumption compared to normal conditions
66 P0278 It’s working Damper Flow№4 Alarm not litAnd the system does not workThe damper starts to act and the nozzle stops injectioning the fuel
67 P0193 High pressure sensor signal in the fuel cellThe alarm is lit, the cruise control does not work, the fuel supply limit is 70%, the pressure limit in the fuel accumulator is up to 80 MPa Simultaneous break of signal wires circuit 21Ad1 and 132Ad5 Reduced output power and increased toxic emissions (with white smoke emissions), increased engine noise
67 P0192 Low pressure sensor signal in the fuel cellThe alarm is lit, the cruise control does not work, the fuel supply limit is 70%, the pressure limit in the fuel accumulator is up to 80 MPa Simultaneous short-circuit on 134A-Gnd1121 Signal WiresAd4 and 132Ad5 Reduced output power and increased toxic emissions (with white smoke emissions), increased engine noise
67 P0191 The pressure sensor signal in the fuel accumulator in the Intermediate RangeThe alarm is lit, the cruise control does not work, the fuel supply limit is 70%, the pressure limit in the fuel accumulator is up to 80 MPa The sensor is defective and the output Voltageremains unchanged Reduced output power and increased toxic emissions (with white smoke emissions), increased engine noise
68 P0088 The pressure in the fuel accumulator exceeds the upper limitThe alarm is lit, the cruise control does not work, the fuel supply limit is 70%, the pressure limit in the fuel accumulator is up to 80 MPa The pressure in the fuel accumulator exceeds 191 Mpa Reduced power output, increased toxic emissions and white smoke emissions
69 P1089 The pressure in the fuel accumulator exceeds the upper limit Alarm Burns Cruise control is not It’s working 70% fuel supply limit, fuel cell pressure limit To 80 Mpa Pressure in FuelsBattery exceeds 180 MPa Reduced power output, increased toxic emissions and white smoke emissions
71 P0629 Output circuit Pcv1 and SC on battery The alarm is lit, the cruise control does not work, the fuel supply limit is 70%. Kz On +В Contacts 152, 153 Pcv1 Reduced output capacity and increased toxic emissions, increased fuel consumption
71 P0628 Chain break Pcv1 and KZ on Mass The alarm is lit, the cruise control does not work, the fuel supply limit is 70%. Chain Break 152, 153 Pcv1 or KZ On Mass Reduced output capacity and increased toxic emissions, increased fuel consumption
72 P2634 Output circuit Pcv2 and KZ on battery The alarm is lit, the cruise control does not work, the fuel supply limit is 70%. Kz On +В Contacts 150, 151 Pcv2 Reduced output capacity and increased toxic emissions, increased fuel consumption
72 P2633 Output circuit Pcv2 and KZ to “mass” The alarm is lit, the cruise control does not work, the fuel supply limit is 70%. Chain Break 150, 151 Pcv2 or short-circuit on MassReduced output capacity and increased toxic emissions, increased fuel consumption
73 P0629 EMCO of ACBPower Pcv1 and Pcv2 The alarm is lit, the cruise control does not work, the RTO does not work, the fuel supply limit is 50% and the engine is immediately stalls. Simultaneous short-circuit on + in wires 152, 153, 150, 151, Pcv1 and Pcv2 Reduced power output, start-up difficulty Engine, increase of flow rate Fuel toxic emissions
73 P0628 Break out Circuit Pcv1 and Pcv2 and KZ on Mass Alarm Burns Cruise control is not It’s working RTO not Works, Limited50% fuel supply and the engine is immediately Stalls. Simultaneous break of the circuit 152, 153, 150, 151, Pcv1 andPcv2 or short-circuit on Mass Reduced output power, difficulty starting the engine, increased fuel consumption And Increased toxic emissions
76 P2635 The fuel pump load control circuit is overloaded Alarm Burns Cruise control is not It’s working Fuel supply limit 70%, OgreLimiting pressure in the fuel cellTo 80 Mpa Mechanical malfunction of fuel pump in overload conditions Reduced output power and increased toxic emissions, increased engine noise, engine stalls
76 P1088 The fuel pump control system exceeds the permissible pressure Alarm Burns Cruise control is not It’s working Fuel supply limit 70%, OgreLimiting pressure in the fuel cellTo 80 Mpa Excess pressure in Fuel Battery Npc> Pfin+ 15 MPa Reduced output power and increased toxic emissions, increased engine noise, engine stalls
77 P1266 Fuel pump control without loadAlarm Burns Cruise control is not It’s working Fuel supply limit 70%, OgreLimiting pressure in the fuel cellTo 80 Mpa Fuel pump control system can not increase the angle of injection Reduced power output, increased toxic emissions and white smoke emissions
78 P0093 Fuel pump control without load, Including Leaks FuelAlarm Burns Cruise control is not It’s working Fuel supply limit 70%, OgreLimiting pressure in the fuel cellTo 80 Mpa Fuel pump without load, including fuel leakage Reduced power output, increased toxic emissions and white smoke emissions