MIL Comes ON With DTC P2646/P2651 Or P2647/P2652

A13-021
September 16, 2015
49031-02409 Version 3

MIL Comes ON with DTC P2646/P2651 or P2647/P2652

(Supersedes 13-021, dated February 28, 2013, to revise the information highlighted in yellow)

AFFECTED VEHICLES

REVISION SUMMARY

Under REPAIR PROCEDURE, illustrations in step 2 specific to 2008–12 Accord PZEV were added along with additional FRT.

SYMPTOM

The MIL comes on with one of these DTCs:

NOTE: The symptom may be intermittent and you may not be able to duplicate it after clearing the DTC.

POSSIBLE CAUSES

The rocker arm oil pressure switch may fail intermittently.

CORRECTIVE ACTION

Replace the rocker arm oil pressure switch.

PARTS INFORMATION

WARRANTY CLAIM INFORMATION

The normal warranty applies.

Model	Operation Number	Description	Flat Rate Time	Failed Part Number
2003–07 Accord L4	110165	Replace the rocker arm oil pressure switch.	0.3 hr	37250-PNE-G01 Honda Genuine (37250-PNE-G01) Switch Assembly Package Dimensions: 12.7 cms (L) x 10.16 cms (W) x 12.7 cms (H) Product Type: Auto Accessory Package Quantity: 1 Country Of Origin: China $76.77 Buy on Amazon Price incl. tax, excl. shipping Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
2008–12 Accord L4 Except PZEV	0.5 hr
2008–12 Accord L4 PZEV only	0.6 hr
2002–05 Civic Si	0.3 hr
2002–09 CR-V
2011 CR-Z
2003–11 Element
2007–11 Fit
2012–13 Civic

Defect Code: 03214
Symptom Code: 03272
Skill Level: Repair Technician

Remove the power steering high pressure hose bracket mounted on the valve cover.

Install the new rocker arm oil pressure switch and the new O-ring. Torque the switch to 22 N•m (16 lbft).
PZEV: Install the brackets and torque the bolts to 12 N.m (8.7 lb-ft), then install the wire harness.
Reinstall the power steering high pressure hose bracket.
Clear the DTC(s) with the HDS.

NOTE: If the DTC returns, refer to the troubleshooting procedure for the DTC that is set.

END

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