Daewoo Bus BS Series Owner's Manual page 238

FAULTY DIAGNOSIS
Fault
LAMP
Code
Engine oil temperature signal indicates engine oil
214 Red
temperature above engine protection critical limit
221 Amber High signal voltage detected at barometric pressure circuit
Low signal voltage detected at barometric pressure circuit
222 Amber
227 Amber
High voltage detected at sensor supply number 2 circuit
Engine speed signal indicates engine speed above engine
234 Red
protection limit
Low voltage detected on the +5 volt sensor supply circuit to
238 Amber
the engine speed sensor
241 Amber
The ECM lost the vehicle speed signal
Signal indicates an intermittent connection or VSS
242 Amber
tampering
Low signal voltage detected at the fan control circuit when
245 Amber
commanded ON
249 Amber High signal voltage detected at ambient air temperature circuit
Low voltage detected at fuel shutoff valve circuit
254 Red
REASON
7-48
EFFECT
Progressive speed deratre increasing in
severity from time of alert.
If the Engine Protection Shutdown feature is
enabled, engine will shut down 30 seconds after
the red lamp starts flashing.
Engine power derate.
Engine power derate.
Engine will run derated.
No engine protection for intake manifold air
temperature.
Fuel injection disabled until engine speed falls
below the overspeed limit.
Possible hard starting and rough running.
Engine speed limited to Maximum Engine
Speed without VSS parameter value.
Cruise control, Gear-Down Protection, and
Road speed Governor will not work.
Engine speed limited to Maximum Engine
Speed without VSS parameter value.
Cruise control, Gear-Down Protection, and
Road speed Governor will not work.
The fan can possibly stay on continuously or
not run at all.
None on performance.
Fuel shutoff valve will close.
Engine will shutdown.