Accord DX Sedan L4-2254cc 2.3L SOHC MFI (2001)
Engine Control Module: Component Tests and General Diagnostics
How to Set Readiness Codes
HOW TO SET READINESS CODES
Air Fuel Ratio (A/F) Sensor Monitor Code
NOTE:
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Do not turn the ignition switch OFF.
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When the battery negative cable is disconnected, all readiness codes are cleared.
Required condition: Ambient temperature between 20° and 95°F (-7° and 35°C).
1. Connect the scan tool to the Data Link Connector (DLC).
2. Start the engine. Hold it at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on.
3. Let the engine idle for 5 seconds.
4. Drive at a steady speed between 50 - 62 mph (80 - 100 km/h) with the transmission in D4 position for about 2 minutes.
5. With the A/T in D4 position or M/T in 5th gear, decelerate from 62 mph (100 km/h) by completely releasing the throttle for at least 5 seconds. If
the engine is stopped during this procedure, repeat steps 4 and 5.
6. Check for the readiness code with the scan tool.
Catalytic Converter Monitor Code
NOTE:
-
Do not turn the ignition switch OFF.
-
When the battery negative cable is disconnected, all readiness codes are cleared.
-
When the ECM/PCM is cleared with the OBD II scan tool or Honda PGM Tester, all readiness codes are cleared.
Required condition: Ambient temperature between 20° and 95°F (-7° and 35°C).
1. Connect the scan tool to the Data Link Connector.
2. Start the engine. Hold it at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on.
3. Drive for about 10 minutes, without stopping, on a highway. Your speed can vary.
4. With the A/T in D4 position or M/T in 5th gear, drive at a steady speed between 50 - 60 mph (80 - 100 km/h) for 30 seconds.
5. Repeat step 4 three times. Between each repetition, close the throttle completely for 1 - 2 seconds. If the engine is stopped during this part of the
procedure, repeat steps 3, 4, and 5.
6. Check for the readiness code with the scan tool.
EGR Monitor Code
NOTE:
-
Do not turn the ignition switch OFF.
-
When the battery negative cable is disconnected, all readiness codes are cleared.
1. Connect the scan tool to the Data Link Connector.
2. Start the engine, and hold it at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on.
3. Drive at a steady speed with the transmission in D4 position between 50 - 62 mph (80 - 100 km/h) for more than 10 seconds.
4. With the A/T in D4 position or M/T in 5th gear, decelerate from 62 mph (100 km/h) by completely releasing the throttle for at least 5 seconds. If
the engine is stopped during this procedure, repeat steps 3 and 4.
5. Check for the readiness code with the scan tool.
EVAP Leak Monitor Code
NOTE:
-
When the battery negative cable is disconnected, all readiness codes are cleared.
-
When the ECM/PCM is cleared with the OBD II scan tool or Honda PGM Tester, all readiness codes are cleared.
-
If the engine is stopped between step 6 and 16, do the entire procedure again.
1. Make sure the gasoline level is 60 - 90 percent of fuel tank capacity (not full).
2. Turn the ignition switch OFF.
3. Let the vehicle sit more than 8 hours.
4. Make sure the outside temperature is between 20 and 95°F (-7 and 35°C).
5. Connect the scan tool to the Data Link Connector.
6. Start the engine, and drive for about 15 minutes.