B13-009
February 28, 2013
Applies To:
2007–12 RDX – ALL
2002–06 RSX – ALL
MIL Comes On With DTC P2646 or P2647
SYMPTOM
The MIL comes on with one of these DTCs:
- P2646 (Rocker arm oil pressure switch circuit low voltage)
- P2647 (Rocker arm oil pressure switch circuit high voltage)
NOTE: The symptom may be intermittent, and you may not be able to duplicate it after cleaning the DTC.
POSSIBLE CAUSE
The rocker arm oil pressure switch may fail intermittently.
CORRECTIVE ACTION
Replace the rocker arm oil pressure switch.
PARTS INFORMATION
NOTE: To help clarify where new parts are used in the REPAIR PROCEDURE, the new part is listed in the applicable step with a “>” symbol.
| Rocker Arm Oil Pressure Switch: P/N | 37250-PNE-G01
Honda Genuine (37250-PNE-G01) Switch Assembly
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API |
| O-ring (13 mm X 1.5 mm): P/N | 91319-PAA-A01
Honda Genuine O-Ring (13X1-5)
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API |
WARRANTY CLAIM INFORMATION
The normal warranty applies.
| Operation Number: | 110165 |
| Flat Rate Time: | 0.3 hour |
| Failed Part: | P/N 37250-PNE-G01 |
| Defect Code: | 03214 |
| Symptom Code: | 03272 |
| Skill Level: | Repair Technician |
REPAIR PROCEDURE
- Remove the power steering high pressure hose bracket mounted on the valve cover.
- Remove the rocker arm oil pressure switch and the O-ring.
- Install the new rocker arm oil pressure switch and the new O-ring. Torque the oil pressure switch to 22 N•m (16 lb-ft).
- > Rocker arm oil pressure switch
- > O-ring
- Reinstall the power steering high pressure hose bracket.
- Clear the code(s) with the HDS.
NOTE: If the DTC returns, refer to the troubleshooting procedure for the DTC that is set.
- QUALITY ASSURED
- Reduces: rough idle, engine surge, hesitation, and spark plus fouling
- 20 oz. bottle.
- Improves: cold start performance, and fuel stability for up to one year
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- DEEP FUEL SYSTEM CLEANING Helps restore lost power, smooth out rough idle, recover lost MPG, and overcome other common engine problems by cleaning the entire fuel system. Cleans fuel injectors, carburetor restrictions, and chamber areas. Add Sea Foam to your fuel tank every 3,000 miles.
- FUEL ADDITIVE FOR GAS & DIESEL: Cleans fuel residue and varnish for smoother idling and cleaner combustion in gasoline and diesel engines. Use with diesel, diesel blends, gasoline, gas-ethanol blends, and conventional in & synthetic oil.
- OIL TREATMENT FOR ENGINE CLEANING: Cleans sludge and deposits in motor oil crankcases to support lubrication and longer engine life. Helps reduce engine wear, cleans away oil restrictions, clean critical engine areas, and clean oil buildup.
- FUEL STABILIZER: It helps fuel resist evaporation, preserves ignition vapors, adds protective lubricity, and prevents the formation of gum and varnish in fuel systems. Keeps gas or diesel fresh for up to 2 years. Works great as a fuel stabilizer and gas stabilizer for stored cars, motorcycles, and generators.
- FOR ALL ENGINES & FUELS: Compatible with all gasoline and diesel fuels and blends, including E10 and E85. Add to fuel and oil in in cars, trucks, RVs, lawnmowers, snowblowers, ATVs, motorcycles, boats, and jet skis.
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- The world’s #1 fuel additive for both gasoline and diesel engines
- A great tune-up in a bottle – treats gasoline, diesel fuel and increases MPG
- Cleans and lubricates the fuel system, including fuel injectors, carburetor and combustion chamber
- Improves fuel economy by burning excess exhaust emissions
- Increases power and acceleration by improving fuel flow and reducing deposit buildup
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.