p2647
Moderate
Acura · SUVs
Rocker Arm Oil Pressure Switch Open
Quick Answer
Error code P2647 on your Acura SUVs means: Rocker Arm Oil Pressure Switch Open. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check oil level and top up if needed
2
Perform oil pressure test with gauge
3
Replace oil with correct viscosity grade
4
Inspect rocker arm pressure switch operation
5
Replace oil pump if pressure low
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Engine oil (correct grade)
Oil filter
Oil pump
Rocker arm pressure switch
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