the trouble light will flash in corresponding fault code. Then check the fault code list for the
breakdown in correspondence.
In case of reading faults with the trouble light, the rules of flash codes are illustrated as below.
Take the open circuit of intake pressure sensor or short circuit of signal end pin to the negative
electrode of the battery as an example, after the key has been switched for three times, the trouble
light will flash 10 times standing for 0, flash once after 1.2 seconds standing for 1, flash 10 times
after another 1.2 seconds standing for 0 and flash 7 times after another 1.2 seconds standing
for 7, that is P0107. It shows that, except the number 0 is represented by flashing for 10
times, other numbers from 1 to 9 will flash as the number itself shows. If there are other fault
codes, such as fault P0201, a fault in the fuel injector of front cylinder, the light of fault code
P0201 will flash in 3.2 seconds after the flashing of P0107. The trouble lights of P0107 and P0201
will flash circularly in case of no other fault. Then faults can be checked according to the fault code
list.
Decimal number will be adopted to show the fault code in PCHUD software. The decimal
number in the fault code list is corresponded to the previous hexadecimal, thus faults can be found
out in correspondence. If MULFCURR (current fault) =263, the corresponding fault code in the
fault code list is P0107, i.e., a fault of intake pressure sensor.
MT05 Fault Code List
Corresponding
decimal number
open circuit of intake pressure sensor or short circuit of
signal end pin to the negative electrode of the battery
short circuit of signal end pin of the intake pressure sensor
to the positive electrode of the battery
short circuit of signal end pin of the intake temperature
sensor to the negative electrode of the battery
open circuit of intake temperature sensor or short circuit of
signal end pin to the positive electrode of the battery
short circuit of signal end pin of the cylinder end
temperature sensor to the negative electrode of the battery
open circuit of cylinder end temperature sensor or short
circuit of signal end pin to the positive electrode of the
battery
open circuit of throttle position sensor or short circuit of
signal end pin to the negative electrode of the battery
short circuit of signal end pin of the throttle position sensor to
the positive electrode of the battery
short circuit of signal end pin of the front cylinder oxygen
sensor to the negative electrode of the battery
short circuit of signal end pin of the front cylinder oxygen
sensor to the positive electrode of the battery
short circuit of heating end pin of the front cylinder oxygen
sensor to the negative electrode of the battery
short circuit of heating end pin of the front cylinder oxygen
sensor to the positive electrode of the battery
fault of for fuel injector front cylinder
fault of for fuel injector rear cylinder (plug-in device of the
fuel injector is not plugged)
open circuit of oil pump or short circuit to the negative
electrode of the battery
short circuit of oil pump to the positive electrode of the battery
signal interference of crank shaft position sensor
no signal of crank shaft position sensor
fault of ignition coil for front cylinder
fault of ignition coil for rear cylinder
voltage below level of electronic control injection system