DTC P2652: Inspection

Rocker Arm Oil Pressure Sensor Inspection 

Test Procedure 

Oil pressure inspection

• Preparation
  • Engine oil: Pour engine oil to the specified level

• Procedure
  • Turn the vehicle to the OFF (LOCK) mode.
  • Disconnect the rocker arm oil pressure sensor connector (3P).
  • Remove the rocker arm oil pressure sensor (A) from the rocker arm oil control valve (B), and attach the oil pressure hose (C), the pressure gauge adapter (D), the A/T pressure adapter (E), the A/T pressure test hose (F), and the A/T low pressure gauge w/panel (G) as shown, then attach the rocker arm oil pressure sensor with specified torque to the oil pressure gauge adapter.
  • Reconnect the rocker arm oil pressure sensor connector (3P).
  • Start the engine.
  • Hold the engine speed at 3,000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
  • Compare the value of HDS [(Rocker Arm) Oil Pressure Sensor (B)] with the measured value.

Courtesy of HONDA, U.S.A., INC.

• Normal Conditions
  • HDS [(Rocker Arm) Oil Pressure Sensor (B)] value and the measured value are about the same.

Results 

• If it is abnormal, there is a problem with the rocker arm oil pressure sensor.

VCM System Oil Passage Inspection 

Test Procedure 

• Procedure
  • Check for debris or clogs in the VCM system oil passage.

• Normal Conditions
  • There is no debris or clogs.

Results 

• If it is abnormal, there is a problem with the VCM system oil passage.

Rocker Arm Oil Control Valve Inspection 

Test Procedure 

• If the other inspection item(s) indicated a normal condition, then it is determined that the remaining rocker arm oil control valve is the cause.

Results 

• There is a problem with the rocker arm oil control valve.