Honda 2004 Odyssey Service Manual page 399

Fuel and Emissions Systems
How to Set Readiness Codes (cont'd)
Evaporative Emission (EVAP) Control
System Monitor and Readiness Codes
NOTE:
• All readiness codes are cleared when the battery is
disconnected or when the PCM is cleared with the
OBD II scan tool or the HDS.
Enable Criteria
• At engine start up, the ECT and IAT are higher than
7°F (20°C), but lower than 95°F (35°C).
• At engine start up, the ECT and IAT are within 18°F
(10°C) of each other.
• At engine startup, the IAT does not drop more
than 9°F (5°C) from the IAT.
Procedure
1. Connect the scan tool to the vehicle's data link
connector (DLC), and bring up the tool's generic
OBD II mode.
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions
with short periods of steady cruise. After about 2.5
miles (1.6 km), the readiness code should switch
from incomplete to complete.
4. If the readiness code is still set to incomplete, check
for a temporary DTC. If there is no DTC, one or
more of the enable criteria were probably not met;
repeat the procedure.
11-90
HO2S 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 or when the PCM is cleared with the
OBD II scan tool or the HDS.
Enable Criteria
ECT at 140°F (60°C) or higher.
Procedure
1. Connect the scan tool to the vehicle's data link
connector (DLC), and bring up the tool's generic
OBD II mode.
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions
with short periods of steady cruise. During the
drive, decelerate (with the throttle fully closed) for
5 seconds. After about 3.5 miles (2.2 km), the
readiness code should switch from incomplete to
complete.
4. If the readiness code is still set to incomplete, check
for a temporary DTC. If there is no DTC, the enable
criteria was probably not met; repeat the procedure.
HO2S Heater Monitor Readiness Code
NOTE: All readiness codes are cleared when the battery
is disconnected or when the PCM is cleared with the
OBD II scan tool or the HDS.
Procedure
1. Connect the scan tool to the vehicle's data link
connector (DLC), and bring up the tool's generic
OBD II mode.
2. Start the engine, and let it idle for 1 minute. The
readiness code should switch from incomplete to
complete.
3. If the readiness code is still set to incomplete, check
for a temporary DTC. If there is no DTC, repeat the
procedure.