DTC Troubleshooting: P0123 (2.0L Engine): Inspection

TP Sensor Inspection 

Test Procedure 

• Preparation
• • -

    Throttle body 6P connector: disconnected

• Procedure
• • -

    Perform the inspection according to the following table.

			(Disconnected)Throttle body 6P connectorfemale terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	Unit output voltage inspection	ON		About 5.0 V

Results 

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

THL1, SG3 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
• • -

    Throttle body 6P connector: disconnected

  • -

    PCM connector E (80P): disconnected

• Procedure
• • -

    Perform the inspection according to the following table.

			(Disconnected)Throttle body 6P 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
	SG3 open wire inspection	OFF			There is less than 1 Ohm
	THL1 open wire inspection	OFF			There is less than 1 Ohm

Results 

• If 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.