Page 89 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 35

DTC code DTC definition DTC check condition Failed part IN
● Coolant temperature sensor
The coolant temperature data ●Cooling fan
DI
is valid but higher than the Ignition switch at ON and the ● Insufficiency of cooling
2963
normal working range engine is running fluid
(minimum severity) ● Blockage of water tank EG
● Engine ECM

The temperature data of
● Intercooler radiating fin TR
intake manifold 1 is valid but
Ignition switch at ON and the ● Inlet manifold temperature
2964 higher than the
engine is running sensor
normal working range AX
● Engine ECM
(minimum severity)

● Urea pump assembly
Improper internal Ignition switch at ON and the FR
2976 ● Urea pump control line
temperature of urea engine is running
● Engine ECM
The voltage of engine waste ●Engine waste gas ST
gas re-circulation outlet recirculation outlet pressure

pressure sensor circuit is Ignition switch at ON and the sensor
3136 BR
higher than the normal value engine is running ● Circuit of outlet pressure
or short to the high voltage sensor short to power source
power supply ● Engine ECM BW
● Engine waste gas

re-circulation outlet pressure
The voltage of engine waste EL
sensor
gas re-circulation outlet
Ignition switch at ON and the ● Circuit of outlet pressure
3137 pressure sensor is lower than
engine is running sensor short to ground
the normal value or short to
● Poor contact of outlet
the low voltage power supply
pressure sensor connector

● Engine ECM
● Inlet temperature sensor
Inlet temperature sensor short ● Sensor short to the power
3142 Ignition switch at ON
to the power supply or open supply

● Engine ECM
● EGP inlet temperature
EGP inlet temperature sensor sensor
3143 Ignition switch at ON
short to ground ● Sensor short to ground

● Engine ECM

EGP inlet and outlet ● EGP inlet temperature
3144 temperature difference too Ignition switch at ON sensor
much ● Engine ECM
● EGP inlet temperature

EGP outlet temperature sensor

3146 sensor short to the power Ignition switch at ON ● Sensor short to the power
supply or open supply
● Engine ECM

DI-035