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1. Check the engine oil level. Is the level OK? YES- Go to step 2 . NO- Adjust the engine oil to the proper level, then go to step 14 . 2. Turn the ignition switch ON (II). 3. Clear the DTC with the HDS. 4. Do the VTEC TEST in the INSPECTION MENU with the HDS. Is the result OK? YES- Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the rocker arm oil pressure switch (VTEC oil pressure switch) and the ECM/PCM. NO- Go to step 5 . 5. Check the result of step 4 . * Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Failure * Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) Open * Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) SIG Line Open * Rocker Arm Oil Pressure Switch (VTEC Oil Pressure Switch) GND Line Open Is the test result any of the above? YES- Go to step 6 . NO- Check for poor connections or loose terminals at the rocker arm oil pressure switch (VTEC oil pressure switch). If it is OK, replace the rocker arm oil control solenoid (VTEC solenoid valve) (see step CMP SENSOR A REPLACEMENT ), then go to 14 . 6. Turn the ignition switch OFF. 7. Disconnect the rocker arm oil pressure switch (VTEC oil pressure switch) 2P connector. 8. Check for continuity between rocker arm oil pressure switch (VTEC oil pressure switch) 2P connector terminals No. 1 and No. 2 Fig. 16: Checking Continuity Between Rocker Arm Oil Pressure Switch 2P Connector Terminals Courtesy of AMERICAN HONDA MOTOR CO., INC. Is there continuity? YES- Go to step 9 . NO- Replace the rocker arm oil pressure switch (VTEC oil pressure switch) (see ROCKER ARM OIL PRESSURE SWITCH (VTEC OIL PRESSURE SWITCH) REMOVAL/INSTALLATION ), then go to step 13 . 9. Turn the ignition switch ON (II). 10. Measure voltage between rocker arm oil pressure switch (VTEC oil pressure switch) 2P connector terminal No. 1 and body ground
