Honda ACCORD HYBRID 2005 Service Manual page 303

H o w t o S e t R e a d i n e s s C o d e s
Malfunction Indicator Lamp (MIL) Indication
(In Relation to Readiness Codes)
The vehicle has certain "readiness c o d e s " 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 PCM has
been reset, these readiness codes are reset. In some
states, part of the emissions testing is to make sure
these codes are set to complete. If all of t h e m 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,
t u r n the ignition switch ON (II), but do not start the
engine. The MIL w i l l come on for 15—20 seconds. If it
then goes off, the readiness codes are complete. If it
flashes five t i m e s , one or more readiness codes are not
set to complete. To set readiness codes f r o m
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 w i t h 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.
Catalytic Converter Monitor and Readiness
Code
NOTE:
• Do not turn the ignition switch off during the
procedure.
• All readiness codes are cleared w h e n the battery is
disconnected, DTCs are cleared, or w h e n the PCM is
reset w i t h the HDS.
• Low ambient temperatures or excessive stop-and-go
traffic may increase the drive t i m e needed to switch
the readiness code f r o m incomplete to c o m p l e t e .
• The readiness code w i l l not switch to complete until
all the enable criteria are met.
• If a fault in the secondary H 0 2 S system caused the
MIL to c o m e o n , the readiness code cannot be set to
complete until you correct the fault.
Enable Criteria
• ECT at 158 °F (70 °C) or higher.
• Intake air temperature (IAT) at 14.7 °F (—9.6 °C) or
higher.
• Vehicle speed sensor (VSS) reads more than 3 m p h
(5 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 M E N U .
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions
w i t h short periods of steady cruise. After about
5 miles (8 km), the readiness code should switch to
c o m p l e t e d .
4. If the readiness code is still not set to complete,
check for a T e m p o r a r y DTC w i t h the HDS. If there is
no DTC, one or more of the enable criteria were
probably not met; repeat the procedure.
(cont'd)
11-63