Daewoo Bus BS Series Owner's Manual page 237

Fault
LAMP
Code
Engine coolant temperature is above engine protection
146 Amber
warning limit
Engine coolant temperature signal indicates engine coolant
151 Red
temperature above engine protection critical limit
High signal voltage detected at intake manifold air
153 Amber
temperature circuit
Low signal voltage detected at intake manifold air
154 Amber
temperature circuit
Intake manifold air temperature signal indicates intake
155 Red
manifold air temperature above engine protection critical limit
187 Amber Low voltage detected at the sensor supply number 2 circuit
195 Amber High signal voltage detected at the engine coolant level circuit
Low signal voltage detected at the engine coolant level circuit
196 Amber
Low engine coolant level detected
197 Amber
High signal voltage or an open circuit detected at the
212 Amber
engine oil temperature circuit
Low signal voltage detected at the engine oil temperature circuit
213 Amber
REASON
7-47
EFFECT
Power derate and possible engine shutdown if
Engine Protection Shutdown feature is enabled.
Progressive power and derate 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.
Possible white smoke.
Fan will stay ON if controlled by ECM.
No engine protection for engine coolant
temperature.
Possible white smoke.
Fan will stay ON if controlled by ECM.
No engine protection for engine coolant
temperature.
Progressive power and derate 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.
Derate in power ouput of the engine
None on performance
None on performance
None on performance
No engine protection for engine oil temperature.
No engine protection for engine oil temperature.
FAULTY DIAGNOSIS