DTC Troubleshooting: P0653(3.0L Engine): 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 6P connector: disconnected
- MAF sensor/IAT sensor 1 4P connector: disconnected
- Turbocharger boost sensor 3P connector: disconnected
- A/C pressure sensor 3P connector: disconnected
- EVAP leak check module 8P connector (USA and Canada models): disconnected
- CMP sensor A (Bank 1) 3P connector: disconnected
- CMP sensor B (Bank 1) 3P connector: disconnected
- CMP sensor A (Bank 2) 3P connector: disconnected
- CMP sensor B (Bank 2) 3P connector: disconnected
- Rocker arm oil pressure sensor 3P connector: disconnected
Procedure
- Perform the inspection according to the following table.
  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) - Refer to: PCM Connector for Inputs and Outputs(3.0L Engine) or PCM Connector for Inputs and Outputs(2.0L Engine) female 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
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 6P connector: disconnected
- MAF sensor/IAT sensor 1 4P connector: disconnected
- Turbocharger boost sensor 3P connector: disconnected
- A/C pressure sensor 3P connector: disconnected
- EVAP leak check module 8P connector (USA and Canada models): disconnected
- CMP sensor A (Bank 1) 3P connector: disconnected
- CMP sensor B (Bank 1) 3P connector: disconnected
- CMP sensor A (Bank 2) 3P connector: disconnected
- CMP sensor B (Bank 2) 3P connector: disconnected
- Rocker arm oil pressure sensor 3P connector: 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 VCC5, VCC6, VCC7, VCC8, VCC9, VCC10, VCC11 Circuit Inspection

Preconditions

External circuit is normal
PCM is normal

Test Procedure

Preparation
- APP sensor 6P connector: disconnected
- MAF sensor/IAT sensor 1 4P connector: disconnected
- Turbocharger boost sensor 3P connector: disconnected
- A/C pressure sensor 3P connector: disconnected
- EVAP leak check module 8P connector (USA and Canada models): disconnected
- CMP sensor A (Bank 1) 3P connector: disconnected
- CMP sensor B (Bank 1) 3P connector: disconnected
- CMP sensor A (Bank 2) 3P connector: disconnected
- CMP sensor B (Bank 2) 3P connector: disconnected
- Rocker arm oil pressure sensor 3P connector: 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 1
  
  Turbocharger boost sensor
  
  A/C pressure sensor
  
  EVAP leak check module (USA and Canada models)
  
  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.