Page 76 - Foton Workshop Manual - Auman EST-M

DI - 22 Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts

Error code list

Use the list below to help you find the reasons of failures. Check each part according to this order. Replace the
parts if necessary
Caution

When performing DTC check in the inspection mode, if one DTC appears, check the corresponding
circuit system of code listed in the list below
DTC code DTC definition DTC check condition Failed part

111 Engine ECM internal failure Ignition switch at ON Engine ECM
● Engine ECM
● Crankshaft position sensor
● Camshaft position sensor
Signal missing, unstable, ● Crankshaft position sensor
intermittent or incorrect data harness open or short
115 When engine running
of engine electromagnetic ● Harness of camshaft
speed/position position sensor open or short
● Signal wheel failure
● Sensor connector in poor
contact
The voltage of intake ● Intake manifold pressure
manifold pressure sensor 1 sensor
122 circuit is higher than the Ignition switch at ON ● Sensor 1 circuit and power
normal value or short to the supply short
high voltage power supply ● Engine ECM
● Intake manifold pressure
sensor
The voltage of intake
● Sensor connector in poor
manifold pressure sensor 1
contact
123 circuit is lower than the Ignition switch at ON
● Circuit of inlet manifold
normal value or short to the
pressure sensor 1 short to
low voltage power supply
ground
● Engine ECM
The circuit voltage of
● Accelerator pedal or joy
accelerator pedal or joy stick
stick position sensor
position sensor 1 is higher
131 Ignition switch at ON ● Sensor 1 circuit and power
than the normal value or
supply short
short to the high voltage
● Engine ECM
power supply
● Accelerator pedal or joy
The circuit voltage of
stick position sensor
accelerator pedal or joy stick
● Sensor 1 circuit short to
position sensor 1 is lower
132 Ignition switch at ON ground
than the normal value or
● Sensor connector in poor
short to the low voltage
contact
power supply
● Engine ECM

DI-022