DTC Troubleshooting: P0450(2.0L Engine): Inspection

FTP Sensor Inspection 

Test Procedure 

Unit output voltage inspection

• Preparation
• • -

    Canister maintenance lid (with AWD): removed

  • -

    FTP sensor 3P connector: disconnected

• Procedure
• • Jump FTP sensor 3P connector terminals No. 1 and No. 2 with a jumper wire.
  • Turn the vehicle to the ON mode.
  • Confirm the HDS [FTP Sensor].

(Disconnected)FTP sensor 3P connectorfemale terminals

Courtesy of HONDA, U.S.A., INC.

• Normal Conditions
• • -

    HDS [FTP Sensor Voltage] value is less than 3.62 V  .

Results 

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

PTANK, SG6 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
• • -

    Canister maintenance lid (with AWD): removed

  • -

    FTP sensor 3P connector: disconnected

  • -

    PCM connector A (50P): disconnected

  • -

    PCM connector E (80P): disconnected

• Procedure
• • -

    Perform the inspection according to the following table.

			(Disconnected)FTP sensor 3P connectorfemale terminals	(Disconnected) PCM connector A (50P) - 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
	PTANK open wire inspection	OFF			There is less than 1 Ohm

			(Disconnected)FTP sensor 3P 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
	SG6 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.