Page 77 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 23

DTC code DTC definition DTC check condition Failed part IN
The voltage of remote
● Remote accelerator pedal
accelerator pedal or
or controlling rod position DI
controlling rod position
sensor
133 sensor 1 circuit is higher than Ignition switch at ON
● Sensor 1 circuit and power
the normal value or short to EG
supply short
the high voltage power
● Engine ECM
supply
TR
● Remote accelerator pedal
The voltage of remote or controlling rod position
accelerator pedal or sensor AX
controlling rod position ● Sensor 1 circuit short to
134 Ignition switch at ON
sensor 1 circuit is lower than ground
FR
the normal value or short to ● Sensor connector in poor
the low voltage power supply contact
● Engine ECM ST
The voltage of engine coolant
● Coolant temperature sensor
temperature sensor 1 circuit
● Sensor 1 circuit and power BR
144 is higher than the normal Ignition switch at ON
supply short
value or short to the high
● Engine ECM
voltage power supply BW
● Coolant temperature sensor
The voltage of engine coolant
● Sensor 1 circuit short to
temperature sensor 1 circuit
ground EL
145 is lower than the normal Ignition switch at ON
● Sensor connector in poor
value or short to the low
contact
voltage power supply
● Engine ECM

● Coolant temperature sensor
The coolant temperature data When the ignition switch is
● Poor heat dissipation
146 is valid but higher than the turned to “ON” or the engine
effects of cooling fan
normal working range is running
● Engine ECM

The data of engine cooling

fluid temperature is valid and ● Coolant temperature sensor
151 outside its normal operating Ignition switch at ON ● Cooling fan
range “the highest severity ● Engine ECM
level”

The voltage of temperature ● Intake manifold pressure

sensor 1 circuit of intake sensor
153 manifold 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

The voltage of temperature sensor
sensor 1 circuit of intake ● Sensor connector in poor
154 manifold is lower than the Ignition switch at ON contact
normal value or short to the ● Sensor 1 circuit short to

low voltage power supply ground

● Engine ECM

DI-023