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8.3 Fault diagnosis
Press clock key (more than 2 Sec.), enter into diagnosis mode; press clock key (less than 2 Sec.), exit from
diagnosis mode; use temperature rotary knob in passenger zone, may look up the fault codes in driver zone
and passenger zone.
Fault codes table in driver zone
Code
Description
CTS
Temperature probe in driver zone-short circuit or damaged; interior temperature sensor fault in driver
zone.
CETS
Temperature probe in evaporator pipes in driver zone-short circuit or damaged
COTS
Air outlet temperature probe in driver zone-short circuit or damaged
ETS
Exterior temperature probe-short circuit or damaged
CRS
Radiators in driver zone-short circuit output
FHPS
Water pump, fuel heater-short circuit output
FHS
Fuel heater-short circuit output
FDRS
Step radiator in front passenger door- short circuit output
DEES
Solenoid valve, defrosting water loop in driver zone-short circuit output
CRES
Solenoid valve, radiator water loop in driver zone-short circuit output
CCS
Interior and exterior circulation in driver zone- short circuit output
CEOS
WIND mode in driver zone- short circuit output
CEFS
Evaporator blower in driver zone PWM-short circuit output
CFHF
Fuel heater in driver zone-fault
CUF
Power in driver zone-fault
DEFL
Electrical water valve, defrosting water loop-feedback signal lost
CRFL
Electrical water valve, radiator water loop in driver zone -feedback signal lost
CAFL
WIND mode-feedback signal lost
CANB
CAN communication line-disconnected
CANS
CAN communication line-short circuit
CO3F
Idle boosting-short circuit output
N1
NANFENG fuel heater-ignition failed
N2
NANFENG fuel heater-sensor malfunction
N3
NANFENG fuel heater-overheating fault
BH32
Battery power voltage-more than 32V
FH32
A/C generator voltage-more than 32V
BL22
Battery power voltage-less than 22V
FL22
Generator voltage-less than 22V
ETCL
Engine water temperature-signal lost
F1
SPHEROS fuel heater-ignition failed
F2
SPHEROS fuel heater-flame extinguished
F3
SPHEROS fuel heater-input voltage too high or too low