Doosan D20S-5 Operation & Maintenance Manual page 101

Advanced Diagnostics Advanced Diagnostics
MI-07 systems are equipped with built-in fault MI-07 systems are equipped with built-in fault
diagnostics. diagnostics.
displayed by the Malfunction Indicator Lamp (MIL) displayed by the Malfunction Indicator Lamp (MIL)
as Diagnostic Fault Codes (DFC) or flash codes, as Diagnostic Fault Codes (DFC) or flash codes,
and viewed in detail with the use of the Service Tool and viewed in detail with the use of the Service Tool
software. When the ignition key is turned on, the MIL software. When the ignition key is turned on, the MIL
will illuminate and remain on until the engine is will illuminate and remain on until the engine is
started. Once the engine is started, the MIL lamp will started. Once the engine is started, the MIL lamp will
go out unless one or more fault conditions are go out unless one or more fault conditions are
present. If a detected fault condition exists, the fault present. If a detected fault condition exists, the fault
or faults will be stored in the memory of the small or faults will be stored in the memory of the small
engine control module (SECM). Once an active fault engine control module (SECM). Once an active fault
occurs the MIL will illuminate and remain ON. This occurs the MIL will illuminate and remain ON. This
signals the operator that a fault has been detected signals the operator that a fault has been detected
by the SECM. by the SECM.
Reading Diagnostic Fault Codes Reading Diagnostic Fault Codes
All MI-07 fault codes are three-digit codes. When the All MI-07 fault codes are three-digit codes. When the
fault codes are retrieved (displayed) the MIL will fault codes are retrieved (displayed) the MIL will
flash for each digit with a short pause (0.5 seconds) flash for each digit with a short p
between digits and a long pause (1.2 seconds) between digits and a long pause (1.2 seconds)
between fault codes. A code 12 is displayed at the between fault codes. A code 12 is displayed at the
end of the code list. end of the code list.
EXAMPLE: EXAMPLE: A A code
detected and the engine has shut down and the MIL IL detected and the engine has shut down and the M
has remained ON. When the codes are displayed has remained ON. When the codes are displayed
the MIL will flash four times (4), pause, then flash six x the MIL will flash four times (4), pause, then flash si
times (6), pause, then flash one time (1) This times (6), pause, then flash one time (1) This
identifies a four sixty one (461), which is the identifies a four sixty one (461), which is the
ETCSticking fault. If a ETCSticki ng fault. If any additional faults were
stored, the SECM would again have a long pause, stored, the SECM would again have a long pause,
then display the next fault by flashing each digit. then display the next fault by flashing each digit.
Since no other faults were stored there will be a long Since no other faults were stored there will be a lo
pause then one flash (1), pause, then two fla pause then one flash (1), pause, then two flashes
(2). This identifies a twelve, signifying the end of the (2). This identifies a twelve, signifying the end of the
fault list. This list will then repeat. fault list. This list will then repeat.
(1) Malfunction Indicator Lamp(MIL) for Engine control system. (1) Malfunction Indicator Lamp(MIL)
Detected Detected system system faults faults
ause (0.5 seconds)
code 461 461 (ETCStickin (ETCSticking) h g) has
ny additional faults were
1 1
for Engine control system.
-98- -98-
Displaying Fault Codes (DFC) from Displaying Fault Codes (DFC) from
SECM Memory SECM Memory
can can be be
To enter code display mode you must turn O To enter code display mode you must turn OFF the
ignition key. Now turn ON the key but do not ignition key. Now turn ON the key but do not start
the engine. As soon as you the engine. As soon as you turn the key to the ON
position you must cycle the foot pedal by depressing position you must cycle the foot pedal by depressing
it to the floor and then fully releasing the pedal it to the floor a
(pedal maneuver). You must fully cycle the foot (pedal maneuver). You must fully cycle the foot
pedal three (3) times within five (5) seconds to pedal three (3) times within five (5) seconds to
enable the display codes feature of the SECM. enable the display codes feature of the
Simply turn the key OFF to exit display mode. The Simply turn the key OFF to exi
code list will continue to repeat until the key is is code list will continue to repeat until the key
turned OFF. turned OFF.
as been been
ng
shes
Operation Section Operation Section
turn the key to the ON
nd then fully releasing the pedal
SECM.
t display mode. The
FF the
start