How To Set Readiness Codes - Honda Accord 2008 Manual

07/11/02 09:02:32 61TA0000_110_0062
Fuel and Emissions Systems

How to Set Readiness Codes

Malfunction Indicator Lamp (MIL) Indication
(In relation to Readiness Codes)
The vehicle has certain ''readiness codes'' that are part
of the on-board diagnostics for the emissions systems.
If the vehicle's battery has been disconnected or gone
dead, if the DTCs have been cleared, or if the ECM/PCM
has been reset, these readiness codes are reset to
incomplete. In some states, part of the emissions
testing is to make sure these codes are set to complete.
If all of them are not set to complete, the vehicle may
fail the emission test, or the test cannot be finished.
To check if the readiness codes are set to complete,
turn the ignition switch ON (II), but do not start the
engine. The MIL will come on for 15 20 seconds. If it
then goes off, the readiness codes are set to complete.
If it flashes five times, one or more readiness codes are
not set to complete. To set readiness codes from
incomplete to complete, do the procedure for the
appropriate code.
To check the status of a specific DTC system, check the
OBD status in the DTC MENU with the HDS (see page
11-8). This screen displays the code, the current data list
of the enable criteria, and the status of the readiness
testing.
11-62
Catalytic Converter Monitor and Readiness
Code
NOTE:
• Do not turn the ignition switch off during the
procedure.
• All readiness codes are cleared when the battery is
disconnected, if the DTCs have been cleared, or if the
ECM/PCM is reset with the HDS.
• Low ambient temperatures or excessive stop-and-go
traffic may increase the drive time needed to switch
the readiness code from incomplete to complete.
• The readiness code will not switch to complete until
all the enable criteria are met.
• If a fault in the secondary HO2S system caused the
−
MIL to come on, the readiness code cannot be set to
complete until you correct the fault.
Enable Criteria
• ECT SENSOR 1 at 158 °F (70 °C) or more.
• IAT SENSOR at 20 °F ( 7 °C) or more.
• Vehicle speed (VSS) above 25 mph (40 km/h).
Procedure
1. Connect the HDS to the vehicle's data link
connector (DLC), and bring up the READINESS
CODEs screen for Catalyst in the DTCs MENU.
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions
with short periods of steady cruise. After about
5 miles (8 km), the readiness code should switch to
complete.
4. If the readiness code is still not set to complete,
check for a Temporary DTC with the HDS. If there is
no DTC, one or more of the enable criteria were
probably not met; repeat the procedure.
ＴＡ０８ＡＥ４Ａ２０３１６１０００００ＢＢＡＴ００
−