Civic HX Coupe L4-1668cc 1.7L SOHC (VTEC-E) MFI (2001)
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Oxygen Sensor: Testing and Inspection
How to Set Readiness Codes
HO2S Monitor Code (D17A1, D17A2 engines)
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 - 95 °F (-7 - 35 °C).
1. Connect the scan tool to the Data Link Connector (DLC).
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. Let the engine idle for 5 seconds.
4. Drive at a steady speed between 50 - 62 mph (80 - 100 km/h) for about 2 minutes.
5. With the A/T in D position, M/T in 4th 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.
HO2S and A/F Sensor Heater Monitor Code
NOTE: When the battery negative cable is disconnected, all readiness codes are cleared.
1. Connect the scan tool to the Data Link Connector (DLC).
2. Start the engine, and let it idle for 10 minutes.
3. Check for the readiness code with the scan tool.
Air Fuel Ratio (A/F) Sensor Monitor (D17A6 engine)
NOTE:
-
Do not turn the ignition switch OFF.
-
When the battery negative cable is disconnected, all readiness codes are cleared.
Required condition:
Ambient temperature between 20 - 95 °F (-7 - 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 between 50 - 62 mph (80 - 100 km/h) with the CVT in D position, M/T in 5th gear for about 2 minutes.
5. With the CVT in D position, 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, go to step 4 and do the procedure again.
6. Check for the readiness code with the scan tool.
