DTC Troubleshooting: P0523(3.0L Engine): Inspection

Engine Oil Pressure Sensor Inspection 

Test Procedure 

Unit output voltage inspection

• Preparation
• • Engine oil pressure sensor 3P connector: disconnected

• Procedure
• • Jump the engine oil pressure sensor 3P connector terminals No. 1 and No. 2 with a jumper wire.
  • Turn the vehicle to the ON mode.
  • Confirm the HDS [Rocker Arm Oil Pressure (EOP) Sensor Voltage].

	(Disconnected)Engine oil pressure sensor 3P connectorfemale terminals
	Courtesy of HONDA, U.S.A., INC.

• Normal Conditions
• • USA and Canada models: HDS [Rocker Arm Oil Pressure (EOP) Sensor Voltage] value is less than 4.81 V  .
  • Mexico models: HDS [Rocker Arm Oil Pressure (EOP) Sensor Voltage] value is less than 4.87 V  .

Results 

• If it is normal, there is a problem with the engine oil pressure sensor.
• If it is abnormal, there is a problem with other related components.

OPSEN, SG2 Open Wire Inspection 

NOTICE: 

Before disconnecting the PCM connector, jump the SCS line with the HDS, and wait more than 1 minute.

Test Procedure 

• Preparation
• • Engine oil pressure sensor 3P connector: disconnected
  • PCM connector E (114P): disconnected
• Procedure
• • Perform the inspection according to the following table.

			(Disconnected)Engine oil pressure sensor 3P connectorfemale terminals	(Disconnected) PCM connector E (114P) - Refer to: PCM Connector for Inputs and Outputs(3.0L Engine) or PCM Connector for Inputs and Outputs(2.0L Engine) female terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	SG2 open wire inspection	OFF			There is less than 1 Ohm
	OPSEN open wire inspection	OFF			There is less than 1 Ohm

Results 

• If it is abnormal, there is a problem in the circuit.

PCM Inspection 

Test Procedure 

• If the other inspection item(s) indicated a normal condition, then it is determined that the remaining PCM is the cause.

Results 

• There is a problem with the PCM.