DTC P0340: Inspection

VCC7, CAMINB1, SG7 Circuit Inspection 

NOTICE:  

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

Test Procedure 

• Preparation
  • CMP sensor A (Bank 1) connector (3P): disconnected
  • PCM connector E (114P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) CMP sensor A (Bank 1) connector (3P) 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
	VCC7 open wire inspection	OFF			There is less than 1 Ω
	CAMINB1 open wire inspection	OFF			There is less than 1 Ω
	SG7 open wire inspection	OFF			There is less than 1 Ω
	VCC7, CAMINB1 shorted wire to wire inspection	OFF			There is more than 1 MΩ
	CAMINB1, SG7 shorted wire to wire inspection	OFF			There is more than 1 MΩ
	Refer to the Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances.
	CAMINB1 shorted to power inspection	ON			Not shorted
	CAMINB1 shorted to ground inspection	OFF			There is more than 1 MΩ

Results 

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

CMP Sensor A (Bank 1) Inspection 

NOTE:  Since there is no direct method to test the inspection item, troubleshooting is performed using a known-good component.

Test Procedure 

• Install a known-good CMP sensor A (Bank 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, CMP sensor A (Bank 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.