Mil Blink Pattern; Current Dtc/Freeze Dtc; Hds Pocket Testing Information; Dtc Readout - Honda 2010 CRF250R Service Manual

Mil Blink Pattern
If the HDS pocket tester is not available. DIG can be read from the ECM
memory by the Mil blink pattern.
The number of Mil blinkS is the equivalent to the main code of the DIG
(the sub code cannot be displayed by the MIL),
The MIL will blink the current DTG, in case the ECM detects the problem
at present, when running the engine or connecting the
12 V battery to the
fuel pump sub harness rECM" selector switch is O N)
(page 5-12). The MIL will slay ON when the engine speed is over 4,000
(After '10: 5,500) rpm.
The Mil has two types of blinks, a long blink and short blink. The long
blinking lasts for 1.2 seconds, the short blinking lasts for
0.4 seconds. One long blink is the equivalent of len short blinks For
example, when two long blinks are followed by five short blinks, the MIL
is 25 (two long blinks
=
20 blinks, plus five short blinks).
When the ECM slores more than one OTC. the MIL will indicate them by
blinking in the order from the lowest number to highest number.
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MIL Check
FUEL SYSTEM (PGM-FI)
MIL
When starting the engine. the MIL will stay on for 2 seconds. then go off. If the MIL does not come on. inspect the MIL circuit (page
5-29).
CURRENT OTC /FREEZE OTC
The oTC is indicated in two ways according to the failure status.
In the case that the ECM detects a problem at present. the MIL will come on and Will start blinking the oTC when running the
engine
Of
connecting the 12 V battery to the fuel pump sub harness ("ECM" selector switch is ON) (page 5-12).
In the case that the ECM does not detect any problem at present but has a problem stored in its memory. the MIL will not light
and blink. To retrieve the past problem code, readout the freeze oTC by following the OTC readout procedure.
HDS POCKET TESTER INFORMATION
• The HOS can readout the DTC. freeze data. curren t data and other ECM condition.
How to connect the HOS Pocket Tester
Stop the engine.
Connect the 12V battery ("ECM" selector switch is ON) (page 5·12).
Connect the HOS pocket tester to the OLC labeled connector of the battery
harness adaptor.
Start the engine, check the oTC and freeze data.
NOTE :
Freeze data indicates the engine conditions when the fi rst malfunction was
detected.
ECM reset
The HOS can reset the ECM data including the OTC . freeze data and some
learning memory.
/
4P(REO)CONNECTOR
L -_ _ _ _ _ _ _ __ _ _ _ _ _
DTC READOUT
Start Ihe engine and check the MIL.
NOTE ;
When starting the engine. the MIL will stay on for 2 seconds. then go off.
o
If the engine can not be started. connect the 12 V battery to the fuel
pump sub harness ("ECM" selector switch is ON) (page 5-12).
If the MIL stays on or blinks. connect the HoS Pocket Tester to the oLC.
read the OTC. freeze data and follow the troubleshooting index (page 5-15).
To re ad the oTC with the MIL blinking. refer to "Reading OTC with the MIL"
(page 5-14).
MIL
L
5-13