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JAC Truck Fault Codes DTC


JAC Truck HFC4DA1-2C Engine Fault Codes DTC

P0030 - The linear oxygen sensor heater circuit is open

P0031 - The linear oxygen sensor heater circuit is short to ground

P0032 - The linear oxygen sensor heater circuit is short to battery

P0045 - EGR valve circuit is open

P0046 - Overtemperature of EGR valve bridge-H chip

P0047 - EGR valve circuit is short to ground

P0048 - EGR valve circuit is short to power supply

P0068 - Short-term drifting error in the process of throttle offset self-adaption

P0069 - The absolute difference between intercooler downstream air pressure and ambientpressure is unreliable

P0070 - Reliability check function for ambient temperature

P0072 - Too low ambient temperature

P0073 - Too high ambient temperature

P0087 - The minimum rail pressure is below the lower limit

P0088 - The maximum rail pressure is above the upper limit

P0097 - The signal level of intercooler downstream temperature is too low

P0098 - The signal level of intercooler downstream temperature is too high

P00BE - The original value of fuel rail pressure is incoherent

P0100 - The supply voltage of air flow sensor exceeds the limit

P0101 - Timeout error of air flow sensor hardware signal

P0102 - The sensitivity deviation of air flow sensor is below the lower limit

P0103 - The sensitivity deviation of air flow sensor is above the upper limit

P010C - The signal level measured by air flow sensor is too low

P010D - The signal level measured by air flow sensor is too high

P0112 - The voltage is below the lower limit of intake air temperature sensor

P0113 - The voltage is above the upper limit of intake air temperature sensor

P0116 - Error reported in dynamic reliability test of coolant temperature sensor

P0117 - Coolant temperature signal level is too low (downstream)

P0118 - Coolant temperature signal level is too high (downstream)

P0119 - Error reported in static reliability test of coolant temperature sensor

P0122 - The signal level of accelerator pedal position sensor 1 is relatively low

P0123 - The signal level of accelerator pedal position sensor 1 is relatively high

P0127 - The signal level of air temperature sensor is relatively high

P0128 - Closed-loop control is actuated due to too low coolant temperature

P0131 - Oxygen sensor IAIPUNVG point is short to ground

P0132 - Oxygen sensor IAIPUNVG point is short to battery

P0168 - The signal level of fuel temperature sensor is relatively high

P0182 - The signal level of fuel temperature sensor is below the lower limit

P0183 - The signal level of fuel temperature sensor is above the upper limit

P0191 - The uncorrected rail pressure value is above the upper limit of drift

P0192 - The voltage of fuel rail pressure sensor is below the lower limit

P0193 - The voltage of fuel rail pressure sensor is above the upper limit

P0194 - The uncorrected rail pressure value is below the lower limit of drift

P0195 - Engine oil temperature signal fault on CAN

P0196 - The oil temperature signal is unreliable

P0197 - The oil temperature signal level is too low

P0198 - The oil temperature signal level is too high

P0201 - The 1 cylinder fuel injector circuit is open

P0202 - The 2 cylinder fuel injector circuit is open

P0203 - The 3 cylinder fuel injector circuit is open

P0204 - The 4 cylinder fuel injector circuit is open

P0205 - The 5 cylinder fuel injector circuit is open

P0206 - The 6 cylinder fuel injector circuit is open

P020A - An error is reported when the time for electrifying the 1 cylinder reaches to the maximum

P020B - An error is reported when the time for electrifying the 2 cylinder reaches to the maximum

P020C - An error is reported when the time for electrifying the 3 cylinder reaches to the maximum

P020D - An error is reported when the time for electrifying the 4 cylinder reaches to the maximum

P020E - An error is reported when the time for electrifying the 5 cylinder reaches to the maximum

P020F - An error is reported when the time for electrifying the 6 cylinder reaches to the maximum


P0215 - Avoid resonance of double mass flywheel when stopping

P0219 - Overspeed protection for engine parts

P0222 - The signal level of accelerator pedal position sensor 2 is relatively low

P0223 - The signal level of accelerator pedal position sensor 2 is relatively high

P022A - EGR valve circuit is open

P022B - EGR valve circuit is short to ground

P022C - EGR valve circuit is short to power supply

P022E - The signal level at the output position of EGR cooling bypass valve position sensoris below the lower limit

P022F - The signal level at the output position of EGR cooling bypass valve position sensoris above the upper limit

P0234 - The actual air intake flow is greater than the target set by system

P0237 - The original voltage of intercooler downstream air pressure sensor is below thelower limit

P0238 - The original voltage of intercooler downstream air pressure sensor is above theupper limit

P023D - The long-term jitter of EGR valve exceeds the limit

P023E - The short-term jitter of EGR valve exceeds the limit

P024A - An error is reported when the temperature of EGR cooler bypass valve inelectrifying phase is too high

P024E - The signal level measured by EGR cooler bypass valve position sensor is below the limit

P024F - The signal level measured by EGR cooler bypass valve position sensor is above the limit

P0251 - The fuel metering unit circuit is open

P0252 - The temperature of fuel metering unit driver module is too high

P0253 - The fuel metering unit circuit is short to ground

P0254 - The fuel metering unit circuit is short to power supply

P0255 - Poor contact between ECU and fuel metering unit

P025C - The voltage of fuel metering unit is below the lower limit

P025D - The voltage of fuel metering unit is above the upper limit

P0263 - An error is reported when the electrifying time reaches to the maximum

P0266 - An error is reported when the electrifying time reaches to the maximum

P0269 - An error is reported when the electrifying time reaches to the maximum

P0272 - An error is reported when the electrifying time reaches to the maximum

P0275 - An error is reported when the electrifying time reaches to the maximum

P0278 - An error is reported when the electrifying time reaches to the maximum

P0299 - The positive deviation of pressure controller is above the upper limit

P0335 - No signal from crankshaft

P0336 - Crankshaft speed signal is irrational

P0339 - Camshaft speed signal is irrational

P0340 - No signal from camshaft

P0341 - The offset angle of camshaft is too large

P0380 - The preheating indicator light output circuit is high

P0382 - The preheating indicator light output circuit is low

P0383 - EGR valve circuit is short to ground

P0384 - EGR valve circuit is short to power supply

P0401 - The actual air intake flow is greater than the target set by system

P0402 - The actual air intake flow is less than the target set by system