Daewoo Bus BS Series Owner's Manual page 239

Fault
LAMP
Code
Open circuit or short to voltage source detected at fuel
235 Amber
shutoff valve circuit
256 Amber Low voltage detected at ambient air temperature circuit
The ECM expected information from a multiplexed device
285 Amber
but did not receive it soon enough or did not receive it at all
The ECM expected information from a multiplexed device
286 Amber
but only receive a portion of the necessary information
The OEM vehicle electronic control unit(VECU) detected a
287 Red
fault with its accelerator pedal
The OEM vehicle electronic control unit(VECU) detected a
288 Red
fault with the remote accelerator
The ambient air pressure sensor is reading an erratic value
295 Amber
at initial key-on
Current detected at injector number 1 when voltage is
311 Amber
turned off
Current detected at injector number 5 when the voltage is
312 Amber
turned off
Current detected at injector number 3 when voltage is
313 Amber
turned off
Current detected at injector number 6 when voltage is
314 Amber
turned off
Current detected at injector number 2 when voltage is
315 Amber
turned off
REASON
7-49
EFFECT
Fuel shutoff valve may not open when starting
key is in ON position, or may not close when
starting key is in OFF position.
None on performance
One or more multiplexed devices will not
operate properly.
One or more symptoms will occur.
At least one multiplexed device will not operate
properly.
Engine may only idle or engine will not
accelerate to full speed.
The engine will not respond to the remote
throttle.
Engine may only idle.
The primary or cab accelerator may be able to be used.
Engine power derate.
Current to injector is shut off.
Engine can possibly misfire or run rough.
Current to injector is shut off.
Engine can possibly misfire or run rough.
Current to injector is shut off.
Engine can possibly misfire or run rough.
Current to injector is shut off.
Engine can possibly misfire or run rough.
Current to injector is shut off.
Engine can possibly misfire or run rough.
FAULTY DIAGNOSIS