JAC HFC4DA1-2C - Page 108

Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
109
S/N DTC Meaning
63 P022A EGR valve circuit is open.
64 P022B EGR valve circuit is short to ground.
65 P022C EGR valve circuit is short to power supply.
66 P022E
The signal level at the output position of EGR cooling bypass valve position sensor
is below the lower limit.
67 P022F
The signal level at the output position of EGR cooling bypass valve position sensor
is above the upper limit.
68 P0234 The actual air intake flow is greater than the target set by system.
69 P0237
The original voltage of intercooler downstream air pressure sensor is below the
lower limit.
70 P0238
The original voltage of intercooler downstream air pressure sensor is above the
upper limit.
71 P023D The long-term jitter of EGR valve exceeds the limit.
72 P023E The short-term jitter of EGR valve exceeds the limit.
73 P024A
An error is reported when the temperature of EGR cooler bypass valve in
electrifying phase is too high.
74 P024E
The signal level measured by EGR cooler bypass valve position sensor is below the
limit.
75 P024F
The signal level measured by EGR cooler bypass valve position sensor is above the
limit.
76 P0251 The fuel metering unit circuit is open.
77 P0252 The temperature of fuel metering unit driver module is too high.
78 P0253 The fuel metering unit circuit is short to ground.
79 P0254 The fuel metering unit circuit is short to power supply.
80 P0255 Poor contact between ECU and fuel metering unit
81 P025C The voltage of fuel metering unit is below the lower limit.
82 P025D The voltage of fuel metering unit is above the upper limit.
83 P0263 An error is reported when the electrifying time reaches to the maximum.
84 P0266 An error is reported when the electrifying time reaches to the maximum.
85 P0269 An error is reported when the electrifying time reaches to the maximum.
86 P0272 An error is reported when the electrifying time reaches to the maximum.
87 P0275 An error is reported when the electrifying time reaches to the maximum.
88 P0278 An error is reported when the electrifying time reaches to the maximum.
89 P0299. The positive deviation of pressure controller is above the upper limit.
90 P0335 No signal from crankshaft
91 P0336 Crankshaft speed signal is irrational.
92 P0339 Camshaft speed signal is irrational.