Honda P2646, P2651, P2647, P2652 and Honda rocker arm oil pressure codes
Honda has issued a service bulletin #13-021 to address any of these rocker arm oil codes P2646, P2651, P2647, P2652 on the vehicles listed below.
The trouble codes may be intermittent and not all codes may be stored in the PCM. You may not be able to clear the codes. Honda has determined that the rocker arm oil pressure switch may fail intermittently.
2003–12 Accord L4 – ALL
2002–05 Civic Si – ALL
2002–09 CR-V – ALL
2011 CR-Z – ALL
2003–11 Element – ALL
2007–11 Fit – ALL
2012–13 Civic – ALL except Si and Hybrid
Honda has issued a revised rocker arm oil pressure switch
Rocker Arm Oil Pressure Switch:
#37250-PNE-G01 (All except 2012–13 Civic)
#37250-R1A-A01 (ONLY for 2012–13 Civic)
O-ring (13 mm X 1.5 mm):
©, 2015 Rick MuscoplatPosted on by Rick Muscoplat