DTC Troubleshooting: P0100(2.0L Engine): Inspection

VCC2, SG2, FGP Circuit Inspection 

NOTICE: 

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

Test Procedure 

• Preparation
• • MAF sensor/IAT sensor 1 4P connector: disconnected
  • PCM connector E (80P): disconnected

• Procedure
• • Perform the inspection according to the following table.

			(Disconnected)MAF sensor/IAT sensor 1 4P connectorfemale terminals	(Disconnected) PCM connector E (80P) - 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
	VCC2 open wire inspection	OFF			There is less than 1 Ohm
	SG2 open wire inspection	OFF			There is less than 1 Ohm
	FGP open wire inspection	OFF			There is less than 1 Ohm
	NOTE: Refer to the Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances.
	VCC2 shorted to ground inspection	OFF			Not shorted
	FGP shorted to ground inspection	OFF			Not shorted
	FGP shorted to power inspection	ON			Not shorted

Results 

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

MAF Sensor Inspection 

Test Procedure 

• Install a known-good MAF sensor/IAT sensor 1 and attempt to reproduce the failure.

Results 

• If the failure is reproduced, there is a problem with other related components.
• If the symptom/DTC goes away, MAF sensor/IAT sensor 1 must be faulty.

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.