DTC Troubleshooting: P0657(2.0L Engine): Inspection

+B_IGP Circuit Inspection

Test Procedure


		(Disconnected)PGM-FI main relay 1 4P socketfemale terminals
	IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
+B_IGP circuit inspection 1	OFF		12 V battery voltage [circuit type 1]
+B_IGP circuit inspection 2	OFF		12 V battery voltage[circuit type 1]

Results

If abnormal, there is a problem in the circuit.
NOTE: If the power supply inspection of the above table showed abnormally, do the additional Power Supply Inspection , to locate the failure.

FI_MAIN_RLY_OUT, FI_MAIN_RLY_CL- Circuit Inspection

NOTICE:

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

Test Procedure


		(Disconnected)PGM-FI main relay 1 4P socketfemale 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
FI_MAIN_RLY_OUT open wire inspection	OFF			There is less than 1 Ohm
FI_MAIN_RLY_CL- 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.
FI_MAIN_RLY_OUT shorted to ground inspection	OFF			Not shorted

Results

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