Doosan D50S-5 Operation & Maintenance Manual page 95

through the fault list through the fault list
14 14 ECTSensorInputLow ECTSensorInputLow
Coolant sensor failure or shorted Coolant sensor failure or shorted
to GND to GND
15 15 ECTSensorInputHigh ECTSensorInputHigh
Coolant sensor disconnected or Coolant sensor disconnected or
open circuit open circuit
16 16 ECTRangeHigh ECTRangeHigh
Engine Overheating Engine Overheating
22 22 ThrottleSensorInputLo ThrottleSensorInputLo
TPS1 TPS1
open circuit open circuit
(Expected (Expected
connector is unplugged connector is unplugged
CODES: 22 & 24) CODES: 22 & 24)
23 23 ThrottleSensorInputHi ThrottleSensorInputHi
TPS1 sensor failure or shorted TPS1 sensor failure or shorted
circuit circuit
24 24 ThrottleSensorRangeLo ThrottleSensorRangeLo
TPS1 potentiometer malfunction. TPS1 potentiometer malfunction.
Improper TPS reading may be Improper TPS reading may be
due to dirt or oxidation on the due to dirt or oxidation on the
sensor traces. sensor traces.
25 25 ThrottleSensorRangeHi ThrottleSensorRangeHi
TPS1 potentiometer malfunction. TPS1 potentiometer malfunction.
Improper TPS reading may be Improper TPS reading may be
due to dirt or oxidation on the due to dirt or oxidation on the
sensor traces. sensor traces.
Table a. MI-04 Diagnostic Fault Codes (Flash Codes) Table a. MI-04 Diagnostic Fault Codes (Flash Codes)
DFC DFC
26 26 ETCSticking ETCSticking
Throttle plate sticking inside the Throttle plate sticking inside the
throttle body or the ETC driver throttle body or the ETC driver
signal signal disconnected disconnected or or
faults faults when when ETC ETC
Probable Fault Probable Fault
Stored Fault Code Stored Fault Code
(MIL Only) (MIL Only)
Stored Fault Code Stored Fault Code
(MIL Only) (MIL Only)
Delayed Engine Delayed Engine
Shutdown Shutdown
Disable Throttle Disable Throttle
Disable Throttle Disable Throttle
Stored Fault Code Stored Fault Code
(MIL Only) (MIL Only)
Stored Fault Code Stored Fault Code
(MIL Only) (MIL Only)
94 94
Action Action
Engine Shutdown Engine Shutdown
Check ECT sensor connector and Check ECT sensor connector and
wiring for a short to GND wiring for a short to GND
Check if ECT sensor connector is Check if ECT sensor connector is
disconnected or for an open ECT disconnected or for an open ECT
circuit circuit
Check coolant system for radiator Check coolant system for radiator
blockage, proper coolant level and blockage, proper coolant level and
for leaks in the system. Possible for leaks in the system. Possible
ECT short to GND, check ECT ECT short to GND, check ECT
signal wiring signal wiring
Check regulator for coolant leaks Check regulator for coolant leaks
Check throttle Check throttle connector connector connection connection
and TPS1 sensor for an open circuit and TPS1 sensor for an open circuit
Check throttle Check throttle connector connector and
sensor wiring for a shorted circuit sensor wiring for a shorted circuit
Check the throttle connector and Check the throttle connector and
pins for corrosion. pins for corrosion.
Check the throttle connector and Check the throttle connector and
pins for corrosion. pins for corrosion.
Operation Section Operation Section
Corrective Action, Corrective Action, First First Check
Check Check for for debris debris or or obstructions obstructions
inside the throttle body inside the throttle body
Check Check throttle-plate throttle-plate shaft shaft
and TPS1 TPS1
Check
for for