Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
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Section IV. DTC List
S/N DTC Meaning
1 P0030 The linear oxygen sensor heater circuit is open.
2 P0031 The linear oxygen sensor heater circuit is short to ground.
3 P0032 The linear oxygen sensor heater circuit is short to battery.
4 P0045 EGR valve circuit is open.
5 P0046 Overtemperature of EGR valve bridge-H chip
6 P0047 EGR valve circuit is short to ground.
7 P0048 EGR valve circuit is short to power supply.
8 P0068 Short-term drifting error in the process of throttle offset self-adaption
9 P0069
The absolute difference between intercooler downstream air pressure and ambient
pressure is unreliable.
10 P0070 Reliability check function for ambient temperature
11 P0072 Too low ambient temperature
12 P0073 Too high ambient temperature
13 P0087 The minimum rail pressure is below the lower limit.
14 P0088 The maximum rail pressure is above the upper limit.
15 P0097 The signal level of intercooler downstream temperature is too low.
16 P0098 The signal level of intercooler downstream temperature is too high.
17 P00BE The original value of fuel rail pressure is incoherent.
18 P0100 The supply voltage of air flow sensor exceeds the limit.
19 P0101 Timeout error of air flow sensor hardware signal
20 P0102 The sensitivity deviation of air flow sensor is below the lower limit.
21 P0103 The sensitivity deviation of air flow sensor is above the upper limit.
22 P010C The signal level measured by air flow sensor is too low.
23 P010D The signal level measured by air flow sensor is too high.
24 P0112 The voltage is below the lower limit of intake air temperature sensor.
25 P0113 The voltage is above the upper limit of intake air temperature sensor.
26 P0116 Error reported in dynamic reliability test of coolant temperature sensor
27 P0117 Coolant temperature signal level is too low (downstream).
28 P0118 Coolant temperature signal level is too high (downstream).
29 P0119 Error reported in static reliability test of coolant temperature sensor
30 P0122 The signal level of accelerator pedal position sensor 1 is relatively low.
31 P0123 The signal level of accelerator pedal position sensor 1 is relatively high.
32 P0127 The signal level of air temperature sensor is relatively high.
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