DTC Troubleshooting: P16E2 (3.0L Engine): Inspection

Alternator Inspection

NOTICE:

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

Preconditions

NOTE: This procedure can be done before any other inspections are completed because this test procedure includes all of the following inspection items. However, if this test fails, it will be necessary to continue with each inspection item individually to determine which item failed.

External circuit is normal

Test Procedure

Preparation
- PCM connector B (72P): disconnected
- DC-DC converter connector A (3P): disconnected
- Left active exhaust valve actuator 3P connector
- Right active exhaust valve actuator 3P connector

Procedure
- Perform the inspection according to the following table.


		(Disconnected)DC-DC converter connector A (3P)female terminals
	IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
Alternator internal circuit inspection	OFF		Not shorted

Results

If it is abnormal, there is a problem with the alternator.

Components Connected to LIN Circuit Inspection

NOTICE:

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

Preconditions

External circuit is normal

Test Procedure

Preparation
- Alternator 1P connector: disconnected
- PCM connector B (72P): disconnected
- DC-DC converter connector A (3P): disconnected
- Left active exhaust valve actuator 3P connector: disconnected
- Right active exhaust valve actuator 3P connector: disconnected

Procedure
Perform the inspection according to the following table and while reconnecting these connectors, one at a time:
- PCM connector B (72P)
- DC-DC converter connector A (3P)
- Left active exhaust valve actuator 3P connector
- Right active exhaust valve actuator 3P connector


		(Disconnected)Alternator 1P connectorfemale terminals
	IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
Part connected to LIN circuit internal circuit inspection	OFF		Not shorted

Results

If it is abnormal, there is a problem with the part that has shorted when it was reconnected.

LIN (FI-ECU) [LIN] Circuit Inspection

NOTICE:

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

Test Procedure

Preparation
- PCM connector B (72P): disconnected
- Alternator 1P connector: disconnected
- DC-DC converter connector A (3P): disconnected
- Left active exhaust valve actuator 3P connector: disconnected
- Right active exhaust valve actuator 3P connector: disconnected
Procedure
- Perform the inspection according to the following table.


		(Disconnected)Alternator 1P connectorfemale terminals	(Disconnected) PCM connector B (72P) - 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
LIN (FI-ECU) [LIN] open wire inspection	OFF			There is less than 1 Ohm
Refer to the Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances.
LIN (FI-ECU) [LIN] shorted to ground inspection	OFF			Not shorted

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.