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DongFeng E70 User Manual

DongFeng E70
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Troubleshooting
4.3-5
DTC of AC (anniversary version)
Use a special scan tool to perform troubleshooting. For details, see the diagnostic introductions given by
the scan tool.
Trouble
code
Hexadecimal
DTC Description
Fault causes
Recommended
countermeasures
B1614
15
Ambient temperature
sensor short to the power
supply or open
1. ECU circuit failed
2. Sensor not connected
3. Low sensor temperature
Inspect the circuit or
replace the sensor.
B1614
11
Ambient temperature
sensor short to ground
ECU circuit failed
Check circuit or replace
sensor
B1604
15
Evaporator temperature
sensor short to the power
supply or open
1. ECU circuit fault
2. Sensor not connected.
3. Low sensor temperature.
Check circuit or replace
sensor
B1605
11
Evaporator temperature
sensor open
ECU circuit fault
Check circuit or replace
sensor
U3003
17
Power voltage above limit
1. Incorrect ECU collection
2. Abnormal battery voltage
Check the circuit or
replace the ECU.
U3003
16
Power voltage below limit
1. Incorrect ECU acquisition.
2. The supply voltage is abnormal.
Check circuit replace
ECU
B1623
23
Recirculation/fresh motor
open
Circuit failed
Inspect the A/C circuit.
B1623
24
Recirculation/fresh motor
short
Line fault
Inspect A/C lines
DTC of telematics unit (TU)
Trouble
code
Hexadecimal
DTC Description
Fault causes
Recommended
countermeasures
B2300
A300
Built-in battery failed
Battery damaged or fall-off
Disassemble the motor
and remove the battery.
B2301
A301
4G network failure to be
enabled
High temperature environment
B2300
A300
High built-in battery
temperature alarm
High temperature environment
B2302
A302
WIFI failure to be
initialized
High temperature environment
B2302
A302
WIFI connection failure
WIFI module damaged
Disassemble the
telematics unit and
replace the WIFI module.
B2303
A303
GPS failure to be
initialized
High temperature environment
B2304
A304
Failure to enter Standby
mode
High temperature environment
B2305
A305
Failure to get GPS data
GPS module failed
Replace the GPS module.
B2306
A306
Failure to read from SPI
flash or write data
Flash chip failed
Replace the flash.
B2307
A307
SPI flash failure to be
initialized
Line fault
Check if the MCU and
FLASH circuits are
normal.
U0073
C073
CAN bus off
Number of sent errors on CAN
control unit is 255 or greater.
Check the wire harness
and connector and other
control units.
B2308
A308
CPU uart communication
Line fault
Check if the MCU and
CPU uart are normally
connected.

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DongFeng E70 Specifications

General IconGeneral
BrandDongFeng
ModelE70
CategoryAutomobile
LanguageEnglish

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