Doosan D20S-5 Operation & Maintenance Manual page 102

Operation Section Operation Section
Table 2. MI-07 Diagnostic Fault Codes (Flash Codes) Table 2. MI-07 Diagnostic Fault Codes (Flash Codes)
DFC DFC
NONE NONE
12 12 Signifies the end of one pass Signifies the end of one pass
through the fault list through the fault list
Inj1Open Inj1Open
Gasoline Injector 1 open Gasoline Injector 1 open
131 131
circuit, broken injector 1 wire circuit, broken injector 1 wire
or defective injector or defective injector
Inj2Open Inj2Open
Gasoline Injector 2 open Gasoline Injector 2 open
132 132
circuit, broken injector 2 wire circuit, broken injector 2 wire
or defective injector or defective injector
Inj3Open Inj3Open
Gasoline Injector 3 open Gasoline Injector 3 open
133 133
circuit, broken injector 3 wire circuit, broken injector 3 wire
or defective injector or defective injector
Inj4Open Inj4Open
Gasoline Injector 4 open Gasoline Injector 4 open
134 134
circuit, broken injector 4 wire circuit, broken injector 4 wire
or defective injector or defective injector
ECTRangeLow ECTRangeLow
141 141
Coolant Sensor failure or Coolant Sensor failure or
(14) (14)
shorted to GND shorted to GND
ECTRangeHigh ECTRangeHigh
151 151
Coolant sensor disconnected Coolant sensor disconnected
(15) (15)
or open circuit or open circuit
(*) Fault actions shown are default values specified by the OEM. (*) Fault actions shown are default values specified by the OEM.
PROBABLE FAULT PROBABLE FAULT
-99- -99-
FAULT ACTION FAULT ACTION * *
None, used as end of the fault l None, used as end of the fault list ist
NONE NONE
identification identification
(1) TurnOnMil (1) TurnOnMil Check INJ1 wiring for an open circuit Check INJ1 wiring for an open circuit
(2) Disable (2) Disable SECM (Signal) A5 to Injector 1 Pin A SECM (Signal) A5 to Injector 1 Pin A
LiquidO2Ctrl LiquidO2Ctrl Switched 12V to Injector 1 Pin B Switched 12V to Injector 1 Pin B
(3) Delayed (3) Delayed Check Injector 1 Resistance, 12 to14 Check Injector 1 Resistance, 12 to14
EngineShutdown EngineShutdown ohms (cold) ohms (cold)
(1) TurnOnMil (1) TurnOnMil Check INJ2 wiring for an open circuit Check INJ2 wiring for an open circuit
(2) Disable (2) Disable SECM (Signal) A8 to Injector 2 Pin A SECM (Signal) A8 to Injector 2 Pin A
LiquidO2Ctrl LiquidO2Ctrl Switched 12V to Injector 2 Pin B Switched 12V to Injector 2 Pin B
(3) Delayed (3) Delayed Check Injector 2 Resistance, 12 to14 Check Injector 2 Resistance, 12 to14
EngineShutdown EngineShutdown ohms (cold) ohms (cold)
(1) TurnOnMil (1) TurnOnMil Check INJ3 wiring for an open circuit Check INJ3 wiring for an open circuit
(2) Disable (2) Disable SECM (Signal) A4 to Injector 3 Pin A SECM (Signal) A4 to Injector 3 Pin A
LiquidO2Ctrl LiquidO2Ctrl Switched 12V to Injector 3 Pin B Switched 12V to Injector 3 Pin B
(3) Delayed (3) Delayed Check Injector 3 Resistance, 12 to14 Check Injector 3 Resistance, 12 to14
EngineShutdown EngineShutdown ohms (cold) ohms (cold)
(1) TurnOnMil (1) TurnOnMil Check INJ4 wiring for an open circuit Check INJ4 wiring for an open circuit
(2) Disable (2) Disable SECM (Signal) A7 to Injector 4 Pin A SECM (Signal) A7 to Injector 4 Pin A
LiquidO2Ctrl LiquidO2Ctrl Switched 12V to Injector 4 Pin B Switched 12V to Injector 4 Pin B
(3) Delayed (3) Delayed Check Injector 4 Resistance, 12 to 14 Check Injector 4 Resistance, 12 to 14
EngineShutdown EngineShutdown ohms (cold) ohms (cold)
Check ECT sensor connector and wiring Check ECT sensor connector and
(1) TurnOnMil (1) TurnOnMil for a short to G for a short to GND
(2) D (2) DelayedEngi elayedEngine ne SECM (Signal) Pin B15 To ECT Pin 3 SECM (Signal) Pin B15 To ECT Pin 3
Shutdown Shutdown 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 if ECT sensor connector is Check if ECT sensor connector is
(1) TurnOnMil (1) TurnOnMil
disconnected or for an open ECT circuit disconnected or for an open ECT circuit
(2) DelayedEngi (2) D elayedEngine ne
SECM (Signal) Pin B15 to ECT Pin 3 SECM (Signal) Pin B15 to ECT Pin 3
Shutdown Shutdown
SECM (Sensor GND) Pin B1 to ECT Pin 1 SECM (Sensor GND) Pin B1 to ECT Pin 1
CORRECTIVE CORRECT IVE ACTION ACTION FIRST FIRST CHECK
ND
CHECK
wiring