honda Workshop Repair Guides

Honda Workshop Service and Repair Manuals

Engine Controls - DTC P2646, P2647|Page 2685 > < Engine Controls - DTC P2646, P2647
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Oil Pressure Sensor: Testing and Inspection

Oil Pressure Switch Test 

1. Remove the YEL/RED wire (A) from the engine oil pressure switch (B).
2. Check for continuity between the positive terminal (c) and the engine (ground). There should be continuity with the engine stopped. There should

be no continuity with the engine running.

3. If the switch fails to operate, check the engine oil level. If the engine oil level is OK, check the engine oil pressure. If the oil pressure is OK,

replace the oil pressure switch.

Engine Controls - DTC P2646, P2647|Page 2685 > < Engine Controls - DTC P2646, P2647