Doosan G20P-5, Руководство по обслуживанию

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G424F(FE) Service Manual Chapter 9. Advanced Diagnostics 254
Table 1. Fault List Definitions (cont’d.)
FAULT DESCRIPTION
CODE
(MI04 CODE)
ETCSpringTest
Electronic Throttle Control Spring Return Test has Failed. The
SECM will perform a safety test of the throttle return spring
following engine shutdown. If this spring has become weak the
throttle will fail the test and set the fault.
NOTE:
Throttle assembly is not a serviceable item and can only
be repaired by replacing the DV-EV throttle assembly.
481
(28)
ETC_Open_Fault
Electronic Throttle Control Driver has failed. Normally set if either
of the ETC driver signals have opened or become disconnected,
electronic throttle or SECM is defective.
471
ETC_Sticking
Electronic Throttle Control is Sticking. This can occur if the
throttle plate (butterfly valve) inside the throttle bore is sticking.
The plate sticking can be due to some type of obstruction; a
loose throttle plate or worn components shaft bearings.
NOTE:
Throttle assembly is not a serviceable item and can only
be repaired by replacing the DV-EV throttle assembly.
461
(26)
FuelSelectConflict
Conflict in fuel select signals, normally set if one or both of the
fuel select signals are shorted to ground
181
FuelTempRangeHigh
Fuel Temperature Sensor Input is High. Normally set if the fuel
temperature sensor wire has been disconnected or the circuit
has opened to the SECM.
932
FuelTempRangeLow
Fuel Temperature Sensor Input is Low. Normally set if the fuel
temperature sensor wire has shorted to chassis ground or the
sensor has failed.
931