DTC Troubleshooting: P0098(3.0L Engine): Inspection

IAT Sensor 2 Inspection 

Test Procedure 

Unit output voltage inspection

• Preparation
• • IAT sensor 2 2P connector: disconnected

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

	(Disconnected) IAT sensor 2 2P connector female terminals
	Courtesy of HONDA, U.S.A., INC.

• Normal Conditions
• • USA and Canada models: HDS [IAT Sensor (2) Voltage] value is less than 4.93 V  .
  • Mexico models: HDS [IAT Sensor (2) Voltage] value is less than 4.99 V  .

Results 

• If it is normal, there is a problem with IAT sensor 2.
• If it is abnormal, there is a problem with other related components.

IAT12, SG2 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
• • IAT sensor 2 2P connector: disconnected
  • PCM connector E (114P): disconnected
• Procedure
• • Perform the inspection according to the following table.

			(Disconnected)IAT sensor 2 2P connectorfemale 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
	IAT12 open wire inspection	OFF			There is less than 1 Ohm
	SG2 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.