DTC P0653: Inspection

VCC5, VCC6, VCC7, VCC8, VCC9, VCC10, VCC11 Shorted Wire Inspection 

NOTICE:  

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

Test Procedure 

• Preparation
  • PCM connector B (72P): disconnected
  • PCM connector E (114P): disconnected
  • APP sensor connector (6P): disconnected
  • MAF sensor/IAT sensor connector (4P): disconnected
  • A/C pressure sensor connector (3P): disconnected
  • FTP sensor connector (3P): disconnected
  • CMP sensor A (Bank 1) connector (3P): disconnected
  • CMP sensor B (Bank 1) connector (3P): disconnected
  • CMP sensor A (Bank 2) connector (3P): disconnected
  • CMP sensor B (Bank 2) connector (3P): disconnected
  • Rocker arm oil pressure sensor connector (3P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

    Refer to the Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances.

			(Disconnected) PCM connector B (72P) female terminals	(Disconnected) PCM connector E (114P) female terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	VCC5 shorted to power inspection	ON			Not shorted
	VCC6 shorted to power inspection	ON			Not shorted
	VCC7 shorted to power inspection	ON			Not shorted
	VCC8 shorted to power inspection	ON			Not shorted
	VCC9 shorted to power inspection	ON			Not shorted
	VCC10 shorted to power inspection	ON			Not shorted
	VCC11 shorted to power inspection	ON			Not shorted

Results 

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

PCM Inspection 

Preconditions 

NOTE:  This procedure can be done before any other inspections are completed because this test procedure includes all of the following inspection items. However, if this test fails, it will be necessary to continue with each inspection item individually to determine which item failed.

• External circuit is normal

Test Procedure 

• Preparation
  • APP sensor connector (6P): disconnected
  • MAF sensor/IAT sensor connector (4P): disconnected
  • A/C pressure sensor connector (3P): disconnected
  • FTP sensor connector (3P): disconnected
  • CMP sensor A (Bank 1) connector (3P): disconnected
  • CMP sensor B (Bank 1) connector (3P): disconnected
  • CMP sensor A (Bank 2) connector (3P): disconnected
  • CMP sensor B (Bank 2) connector (3P): disconnected
  • Rocker arm oil pressure sensor connector (3P): disconnected

• Procedure
  • Perform the confirmation procedure.

• Normal Conditions
  • DTC P0653 is not indicated.

Results 

• If it is abnormal, there is a problem with the PCM.

Components Connected to VCC2, VCC6, VCC7, VCC8, VCC9, VCC10, VCC11 Circuit Inspection 

Preconditions 

NOTE:  This procedure can be done before any other inspections are completed because this test procedure includes all of the following inspection items. However, if this test fails, it will be necessary to continue with each inspection item individually to determine which item failed.

• External circuit is normal
• PCM is normal

Test Procedure 

• Preparation
  • APP sensor connector (6P): disconnected
  • MAF sensor/IAT sensor connector (4P): disconnected
  • A/C pressure sensor connector (3P): disconnected
  • FTP sensor connector (3P): disconnected
  • CMP sensor A (Bank 1) connector (3P): disconnected
  • CMP sensor B (Bank 1) connector (3P): disconnected
  • CMP sensor A (Bank 2) connector (3P): disconnected
  • CMP sensor B (Bank 2) connector (3P): disconnected
  • Rocker arm oil pressure sensor connector (3P): disconnected

• Procedure
  • Check for Pending or Confirmed DTCs with the HDS while reconnecting these parts, one at a time:

    * APP sensor

    * MAF sensor/IAT sensor

    * A/C pressure sensor

    * FTP sensor

    * CMP sensor A (Bank 1)

    * CMP sensor B (Bank 1)

    * CMP sensor A (Bank 2)

    * CMP sensor B (Bank 2)

    * Rocker arm oil pressure sensor

• Normal Conditions
  • DTC P0653 is not indicated.

Results 

• If it is abnormal, there is a problem with the component that caused the DTC when it was reconnected.