Doosan D20S-5 Operation & Maintenance Manual page 103

Table 2. MI-07 Diagnostic Fault Codes (Flash Codes) cont'd. Table 2. MI-07 Diagnostic Fault Codes (Flash Codes) cont'd.
DFC DFC
ECTOverTempFault ECTOverTempFault
Engine coolant temperature is Engine coolant temperature is
161 161 high. The sensor has high. The sensor has
(16) (16) measured an excessive measured an excessive
coolant temperature typically coolant temperature typically
due to the engine o due to the engine overhe
ECT_IR_Fault ECT_IR_Fault
171 171 Engine coolant temperature Engine coolant temperature
not changing as expected not changing as expected
FuelSelectConflict FuelSelectConflict
Conflict in fuel select signals, Conflict in fuel select signals,
181 181
normally set if both of the fuel normally set if both of the fuel
select signals are shorted to select signals are shorted to
ground ground
CamEdgesFault CamEdgesFault
No CAM signal when engine is No CAM signal when engine is
191 191 known to be rotating, broken known to be rotating, broken
crankshaft sensor leads or crankshaft sensor leads or
defective CAM sensor defective CAM sensor
CamSyncFault CamSyncFault
Loss of synchronization on the Loss of synchronization on the
CAM sensor, normally due to CAM sensor, normally due to
192 192
noise on the signal or an noise on the signal or an
intermittent connection on the intermittent connection on the
CAM sensor CAM sensor
CrankEdgesFault CrankEdgesFault
No crankshaft signal when No crankshaft signal when
engine is known to be rotating, engine is known to be rotating,
193 193 broken crankshaft sensor broken crankshaft sensor
leads or defective crank leads or defective crank
sensor sensor
CrankSyncFault CrankSyncFault
Loss of synchronization on the Loss of synchronization on the
crankshaft sensor, normally crankshaft sensor, normally
194 194
due to noise on the signal or due to noise on the signal or
an intermittent connection on an intermittent connection on
the crankshaft sensor the crankshaft sensor
(*) Fault actions shown are default values specified by the OEM. (*) Fault actions shown are default values specified by the OEM.
PROBABLE FAULT PROBABLE FAULT
verheating. ating.
-100- -100-
FAULT FAULT ACTION ACTION * *
Check coolant system for radiator Check coolant system for radiator
blockage, proper coolant level and fo blockage, proper coolant level and for r
leaks in the system. leaks in the system.
(1) TurnOnMil (1) TurnOnMil Possible ECT short to GND, check ECT Possible ECT short to GND, check ECT
(2) D (2) DelayedEngi elayedEngine ne signal wiring signal wiring
Shutdown Shutdown SECM (Signal) Pin B15 to ECT Pin 3 SECM (Signal) Pin B15 to ECT Pin 3
SECM (Sensor GND) Pin B1 to ECT Pin 1 SECM (Sensor GND) Pin B1 to ECT Pin 1
SECM (System GND) Pin A16, B17 SECM (System GND) Pin A16, B17
Check regulator for coolant leaks s Check regulator for coolant leak
Check for coolant system problems, e.g. Check for coolant system problems, e.g.
TurnOnMil TurnOnMil
defective or stuck thermostat defective or stuck th
Check fuel select switch connection for a Check fuel select switch connection fo
(1) TurnOnMil (1) TurnOnMil
short to GND short to GND
(2) Delayed (2) Delayed SECM (SIGNAL) Pin A12 SECM (SIGNAL) Pin A12
EngineShutdown EngineShutdown SECM (SIGNAL) Pin A15 SECM (SIGNAL) Pin A15
SECM (Sensor GND) Pin B1 SECM (Sensor GND) Pin B1
Check CAM sensor connections Check CAM sensor connections
SECM (SIGNAL) Pin B10 to CAM sensor SECM (SIGNAL) Pin B10 to CAM sensor
Pin 2 Pin 2
None None SECM (Sensor GND) Pin B1 to CAM SECM (Sensor GND) Pin B1 to CAM
sensor Pin 3 sensor Pin 3
Switched 12V Switched
Check for defective CAM sensor Check for defective CAM
Check CAM sensor connections Check CAM sensor connections
SECM (SIGNAL) Pin B10 to CAM sensor SECM (SIGNAL) Pin B10 to CAM sensor
Pin 2 Pin 2
None None SECM (Sensor GND) Pin B1 to CAM SECM (Sensor GND) Pin B1 to CAM
sensor Pin 3 sensor Pin 3
Switched 12V Switched
Check for defective CAM sensor Check for defective CAM
Check Crankshaft sensor connections Check Crankshaft sensor connections
SECM (SIGNAL) Pin B5 to Cran SECM (SIGNAL) Pin B5 to Crank sensor
Pin 3 Pin 3
None None SECM (Sensor GND) PIN B1 to Crank k SECM (Sensor GND) PIN B1 to Cran
sensor Pin 2 sensor Pin 2
Switched 12V to Crank sensor Pin 1 Switched 12V to Crank sensor Pin 1
Check for defective Crank sensor Check for defective Crank sensor
Check Crankshaft sensor connections Check Crankshaft sensor connections
SECM (SIGNAL) Pin B5 to Cran SECM (SIGNAL) Pin B5 to Crank sensor
Pin 3 Pin 3
None None SECM (Sensor GND) Pin B1 to Crank SECM (Sensor GND) Pin B1 to Crank
sensor Pin 2 sensor Pin 2
Switched 12V to Crank sensor Pin 1 Switched 12V to Crank sensor Pin 1
Check for defective Crank sensor Check for defective Crank sensor
Operation Section Operation Section
CORRECTIVE CORRECT IVE ACTION ACTION FIRST FIRST CHECK
ermostat
12V to to CAM CAM sensor sensor Pin
sensor
12V to to CAM CAM sensor sensor Pin
sensor
CHECK
r a
Pin 1 1
Pin 1 1
k sensor
k sensor