Howo Error Codes List. DTC
Sinotruk HOWO Engine Diagnostic Trouble Codes
* SAE - Output when using STT (DST-PC)
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Codes, |
Decoding the code. Fault description |
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P0122 |
Weak signal of the accelerator position sensor No. 1 |
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P0123 |
Strong signal of the accelerator position sensor No. 1 |
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P0222 |
Weak signal of the accelerator position sensor No. 2 |
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P0223 |
Strong signal of the accelerator position sensor No. 2 |
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P0121 |
The accelerator position sensor No. 1 is not turned off |
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P0120 |
The accelerator position sensor No. 1 is not included |
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P2120 |
The signal of both accelerator position sensors is painless |
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P0238 |
Strong pressure sensor signal |
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P0237 |
Pressure sensor signal too weak |
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P0227 |
PTO accelerator position sensor signal too weak |
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P0228 |
The signal of the PTO accelerator position sensor is too weak |
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P0193 |
Fuel rail pressure sensor signal too strong |
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P0192 |
Fuel rail pressure sensor signal too weak |
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P0191 |
Fuel rail pressure sensor signals abnormal |
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P0563 |
Battery voltage too high |
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P0118 |
Too strong coolant temperature sensor signal |
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P0117 |
The signal of the coolant temperature sensor is too weak |
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P0183 |
Fuel temperature sensor signal too strong |
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P0182 |
Fuel temperature sensor signal too weak |
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P0113 |
Temperature sensor signal too strong (exhaust air or air A / F) |
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P0112 |
Temperature sensor signal too weak (exhaust air or air A / F) |
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P2229 |
Too strong atmospheric pressure sensor signal |
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P0228 |
Signal of the atmospheric pressure sensor is too weak |
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P0617 |
Short circuit of the starter power circuit |
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P0337 |
Lack of impulses from the crankshaft position sensor |
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P0342 |
Lack of impulses from the cylinder recognition sensor |
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P0385 |
Lack of impulses from the crankshaft position sensor and cylinder recognition sensor |
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P0503 |
Too high frequency of the vehicle speed sensor |
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P0502 |
Open or short circuit of the input circuit of the vehicle speed sensor |
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P0501 |
Painless vehicle speed sensor signal |
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P1681 |
Open air intake brake MV1 load circuit or output short to ground |
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P1682 |
Short circuit of the supply circuit of the brake MV1 for air intake |
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P2148 |
Short circuit of the output power supply circuit COM1; |
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P2147 |
Short circuit of the ground circuit of the COM1 output; |
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P2146 |
The load of the COM1 output is open; Short circuit of loads TWV1, TWV3 and TWV5 |
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P2151 |
Short circuit of the power supply circuit of the COM1 output; Short circuit of the power supply circuit of the output TWV2, 4 and 6 |
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P2150 |
Short circuit of the ground circuit of the COM2 output; |
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P2149 |
The load of the COM2 output is open; Short circuit of loads TWV2, TWV4 and TWV6 |
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P0201 |
Open load of output TWV1, Open circuit injector |
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P0205 |
Open load of output TWV2, Open circuit injector |
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P0203 |
Open load of output TWV3, Open circuit injector |
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P0206 |
Open load of output TWV4, Open circuit injector |
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P0202 |
Open load of output TWV5, Open circuit injector |
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P0204 |
Open load of output TWV6, Open circuit injector |
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P0611 |
Defective capacitor charging circuit (undercharging) |
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P0200 |
Capacitor charging circuit defective (overcharge) |
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P0629 |
Short circuit of the power supply circuit of the PCV1 output |
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P2634 |
Short circuit of the power supply circuit of the PCV2 output |
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P0629 |
Short circuit of the power supply circuit of the PCV1 and PCV2 output |
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P0628 |
Open load and short-circuited ground of the PCV1 output |
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P2633 |
Open load and short-circuited ground of the PCV2 output |
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P0628 |
Open load and short-circuited ground of the output of PCV1 and PCV2 |
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P2635 |
Overload of the feed pump control |
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P1088 |
Overvoltage control of the feed pump |
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P1266 |
Unloaded feed pump control |
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P0093 |
Unloaded feed pump control (including fuel leakage) |
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P1089 |
Pressure exceeds the upper limit |
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P0088 |
Fuel rail pressure exceeds upper limit |
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P0301 |
The fuel system of the cylinder No. 1 is faulty |
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P0302 |
The fuel system of the cylinder No. 2 is faulty |
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P0303 |
The fuel system of the cylinder No. 3 is faulty |
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P0304 |
The fuel system of the cylinder No. 4 is faulty |
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P0305 |
The fuel system of the cylinder No. 5 is faulty |
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P0306 |
The fuel system of the cylinder No. 6 is faulty |
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P0219 |
The engine exceeds the speed limit |
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P0541 |
Short-circuited grounding of the output of the heating relay |
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P0542 |
Open load of the heating relay output |
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P1530 |
The engine switch is locked closed |
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P0217 |
Temperature exceeds the upper limit |
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U1001 |
The CAN2 junction point is not working (depending on the car models; sometimes this code is missing) |
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P0704 |
Faulty clutch switch circuit (Only for speed variator) |
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P0850 |
Defective neutral switch (Only for speed variator) |
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U0121 |
Common CAN line - line open with ABS (Only for speed variator) |
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U0155 |
Common CAN line - line opens with METER (Only for speed variator) |
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P0686 |
Diagnostics of the main relay; Main is fixed in closed state |
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P1565 |
Faulty cruise switch circuit |
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P1602 |
QR data not entered |
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P1601 |
Faulty QR detection (Faulty QR correction detection) |
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P0607 |
Defective CPU - defective protection IC |
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P0606 |
Defective CPU - Defective main CPU |
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P060 |
Check and Error - Flashing Sector |
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P0523 |
Engine oil pressure sensor is too high |
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P0522 |
Engine oil pressure sensor is too low |
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P0524 |
Mismatch of engine oil pressure in the internal memory of the ECU engine |
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P1683 |
Open load and Short circuit ground of engine brake relay output |
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P1684 |
Short-circuit ground of the battery of the engine brake relay output |
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Appendix II: Table of Diagnostic Flashing Codes for Fuel Fault
diesel common rail pump
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Diagnostic code flashing |
Code Malfunc tions |
Code meaning |
Actions ECU unit |
Malfunction |
Manifestation malfunctions |
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1 |
P1683 |
Short circuit Nation (short circuit) on "weight"
additional output motor brakes |
Signaling device switched off |
Short circuit to ground OUT6 output 37 |
Motor function the brakes are working poorly. |
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1 |
P1684 |
Short circuit on the battery addi- solid exit
engine brake |
Signaling device is burning |
Short circuit on + V output OUT6 37 |
Motor function the brakes are working poorly.
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2 |
P1602 |
QR code data is not were introduced |
Signaling device is burning |
QR code data is not were introduced (all equal to zero) |
Reduced output power and increase toxic emissions, increase in noise engine and emissions white smoke |
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2 |
P0602 |
QR code data wrong |
Signaling device is burning |
QR code value wrong (EEPROM) KQRSW shows 0,1,2 |
Reduced output power and increase toxic emissions, increase in noise engine and emissions white smoke |
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2 |
P1601 |
Definition data for code QR is wrong (the change code definitions QR is wrong) |
Signaling the torus is off,
the system is not works |
Definition data for QR code wrong (for example, wrong order 40,80,120, 140). This is not will happen when
mass production leadership. |
Reduced output power and increase toxic emissions, increase in noise engine and emissions white smoke |
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3 |
P0607 |
Malfunction CPU. Follow malfunction integral schemes. |
Signaling device burns,
cruise- control is not
works, RTO stopped, limitation filing fuel 70%. |
Malfunction additional CPU (tracking computer main ECU) |
Reduced output power and increase toxic emissions, increase in noise engine and engine stalls |
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3 |
P0606 |
Malfunction CPU, faulty the main CPU |
Signaling device lit, cruise- control is not running, PTO stopped, flow restriction fuel 70%. |
Malfunction main CPU (receiving signal malfunctions additional ECU) |
Decrease day off power and the rise toxic emissions, increase in noise engine and engine stalls |
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3 |
P0601 |
Examination area, indicated by the code flashing, and mistakes |
Signaling device lit, cruise- control is not running, PTO stopped, flow restriction fuel 70%. |
ECU constantly conducts a circular area check, indicated by the code flashing
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Decrease day off power and the rise toxic emissions, increase in noise engine and engine stalls |
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5 |
P0686 |
Malfunction main relay Relay stuck in a closed condition |
Signaling device is burning |
When the relay is not works, voltage above 16 V. |
After turning off ignition signaling device malfunctions continues burn |
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6 |
P0217 |
Temperature cooling liquids exceeds upper limit |
Signaling device off, cruise control is not works, limitation of fuel supply 70%. |
Temperature cooling fluid exceeds the upper limit is 107C. |
Overheat |
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7 |
P0219 |
Engine exceeds limit turnovers |
Signaling device malfunctions does not burn and Cruise control disconnects
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A warning, when the frequency rotation exceeds 3000; when the frequency rotation below 2800, a warning disappears |
Obvious manifestations malfunctions absent (when the frequency rotation engine above 2900 rpm) |
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8 |
U0073 |
ECU error CAN1 |
Signaling device switched off |
Short circuit to ground wires 157 CAN1H and 158 CAN1L |
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9 |
U1001 |
ECU error CAN2 |
Signaling device is burning |
Short circuit to ground wires 95 CAN2H and 96 CAN2L |
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9 |
U0121 |
ABS disconnect on from CAN bus |
Signaling device malfunctions lit and cruise control is disabled |
ABS disconnected from CAN bus |
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9 |
U0155 |
CAN device disconnected from CAN bus |
Signaling device malfunctions lit and cruise control is disabled |
CAN device disconnected not from CAN bus |
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eleven |
P0118 |
High signal sensor temperature cooling liquids |
Signaling device malfunctions lit and cruise control is disabled |
Breaking the chain signal wires 155AD7 |
Noise and emissions white smoke increase |
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eleven |
P0117 |
Low signal sensor temperature cooling liquids |
Signaling device lit, cruise- control is not works, feed restriction fuel 70%. |
Short circuit at 55A-GND5 signal wires 155AD7 |
Noise and emissions white smoke increase |
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12 |
P0342 |
G sensor does not issue ripples |
Signaling device malfunctions lit and cruise control is disabled |
Open circuit 120G |
Unstable idle speed stroke and poor start-up (possibly with black smoke) |
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13 |
P0337 |
NE sensor does not issue ripples |
Signaling device malfunctions lit, cruise- control is disabled and FCCB disconnects |
Breaking the chain 40NE + |
Instability idle move, bad start engine (possibly with black smoke) and the engine stalls. |
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13 |
P0385 |
Absence impulses sensors NE and G |
Signaling device malfunctions
lit, cruise- shutdown control so the FCCB
disconnected, PTO turns off and engine brake disconnects |
Simultaneous chain break 40NE + and 120G |
Instability idle move, bad start engine (possibly with black smoke) and the engine stalls. |
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fourteen |
P0183 |
High signal sensor temperature oils |
Signaling device is burning |
Breaking the chain signal wires 162AD8 |
No visible signs of malfunction |
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fourteen |
P0182 |
Low signal sensor temperature oils |
Signaling device is burning |
Short circuit at 55A-GND5 signal wires 162AD8 |
No visible signs of malfunction |
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15 |
P2229 |
High signal sensor atmospheric pressure |
Signaling device is burning |
Short circuit for 5V internal wire ECU signal |
Increased emission white smoke power reduction, increased toxicity of emissions, low horizontal engine power road |