Starter System Circuit Troubleshooting (3.0L Engine): Inspection

Ring Gear Visual Inspection 

Test Procedure 

• Preparation
• • Torque converter cover: removed

• Procedure
• • Check damaged a worn ring gear on the drive plate.

• Normal Conditions
• • Not damaged or worn.

Results 

• If it is abnormal, there is a problem with the drive plate.

Drive Gear Visual Inspection 

Test Procedure 

• Preparation
• • Starter: removed

• Procedure
• • Check damaged a worn drive gear on the starter.

• Normal Conditions
• • Not damaged or worn.

Results 

• If it is abnormal, there is a problem with the starter.

Starter Functional Inspection 

Preconditions 

• The starter is operated when trying to start the engine.
• Drive gear of the starter is normal.
• Ring gear of the drive plate is normal.
• 12 volt battery is normal

Test Procedure 

• Preparation
• • The HDS [ALL INJECTORS STOP] is selected
  • Shift to P position/mode

• Procedure
• • Connect an ammeter (0 - 400 A) as shown.
  • Press the brake pedal.
  • Turn the vehicle to the START mode, and check the current during cranking.

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

• Normal Conditions
• • The cranking current range is between 110 A and 375 A  .

Results 

• If it is abnormal, there is a problem with the starter.
• NOTE: If the result shows there is a problem with the starter, do the starter performance test - Refer to: Starter Inspection(2.0L Engine)  or Starter Performance Test(2.0L Engine)  or Starter Performance Test(3.0L Engine) .
• • If the current value is too large even though the starter hardly operates, the engine rotational load may be too large (engine seizure, etc.).

+B_BATTERY Circuit Inspection 

Test Procedure 

• Preparation
• • -Starter B terminal: disconnected
• Procedure
• • -Perform the inspection according to the following table.

			(Disconnected)Starter B terminal (A)
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	+B_BATTERY circuit inspection	OFF		12 V battery voltage [circuit type 1]

Results 

• If abnormal, there is a problem in the circuit.

  If the power supply inspection of the above table showed abnormally, do the additional Power Supply Inspection , to locate the failure.

ST_MG_SW_AP5T, GND [ST_MG_SW_AP5T] Circuit Inspection 

Test Procedure 

• Preparation
• • Starter S terminal 1P connector: disconnected
  • Starter cut relay 2: disconnected
• Procedure
• • Perform the inspection according to the following table.

			(Disconnected)Starter S terminal 1P connectorfemale terminals	(Disconnected) Starter cut relay 2 4P socket female terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	ST_MG_SW_AP5T open wire inspection	OFF			There is less than 1 Ohm
	GND [ST_MG_SW_AP5T] open wire inspection	OFF			There is less than 1 Ohm (inspection circuit includes a diode)
	Refer to the Open/Shorted Wire Inspection Description for the method to inspect the shorted circuit below, then start to inspect according to circumstances.
	ST_MG_SW [ST_MG_SW_AP5T] shorted to ground inspection	OFF			Not shorted (inspection circuit includes a diode)

Results 

• If abnormal, there is a problem in the circuit.

+B_STOP Circuit Inspection 

Test Procedure 

• Preparation
• • -

    Brake pedal position switch 4P connector: disconnected

• Procedure
• • -

    Perform the inspection according to the following table.

			(Disconnected)Brake pedal position switch 4P connectorfemale terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	+B_STOP circuit inspection	OFF		12 V battery voltage [circuit type 1]

Results 

• If abnormal, there is a problem in the circuit.

  If the power supply inspection of the above table showed abnormally, do the additional Power Supply Inspection , to locate the failure.

STOP_SW Open Wire Inspection 

Test Procedure 

• Preparation
• • -

    Body control module connector C (28P): disconnected

  • -

    Brake pedal position switch 4P connector: disconnected

• Procedure
• • -

    Perform the inspection according to the following table.

			(Disconnected)Brake pedal position switch 4P connectorfemale terminals	(Disconnected) Body control module connector C (28P) female terminals

		IG Mode	Courtesy of HONDA, U.S.A., INC.	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	STOP_SW open wire inspection	OFF			There is less than 1 Ohm

Results 

• If abnormal, there is a problem in the circuit.

STS Circuit Inspection 

NOTICE: 

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

Test Procedure 

• Preparation
• • Body control module connector F (36P): disconnected
  • PCM connector B (72P): disconnected
• Procedure
• • Perform the inspection according to the following table.

			(Disconnected) Body control module connector F (36P) female 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
	STS 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.
	STS shorted to ground inspection	OFF			Not shorted

Results 

• If abnormal, there is a problem in the circuit.

+B_START_CUT_RLY Inspection 

Test Procedure 

• Preparation
• • Starter cut relay 1: disconnected
• Procedure
• • Perform the inspection according to the following table.

			(Disconnected)Starter cut relay 1 4P socketfemale terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	+B_START_CUT_RLY circuit inspection	OFF		12 V battery voltage [circuit type 1]

Results 

• If abnormal, there is a problem in the circuit.

  If the power supply inspection of the above table showed abnormally, do the additional Power Supply Inspection , to locate the failure.

START_DIAG [ST_CUT_RLY_COM] Circuit Inspection 

NOTICE: 

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

Test Procedure 

• Preparation
• • -Starter cut relay 1: disconnected
  • -Starter cut relay 2: disconnected
  • -PCM connector B (72P): disconnected
• Procedure
• • Perform the inspection according to the following table.

			(Disconnected) Starter cut relay 1 4P socket female 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
	START_DIAG [ST_CUT_RLY_COM] 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.
	START_DIAG [ST_CUT_RLY_COM] shorted to ground inspection	OFF			Not shorted

			(Disconnected) Starter cut relay 2 4P socket female 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
	START_DIAG [ST_CUT_RLY_COM] 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.
	START_DIAG [ST_CUT_RLY_COM] shorted to ground inspection	OFF			Not shorted

Results 

• If abnormal, there is a problem in the circuit.

ST_CUT_RLY1_CL-, ST_CUT_RLY2_CL- Circuit Inspection 

NOTICE: 

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

Test Procedure 

• Preparation
• • Starter cut relay 1: disconnected
  • Starter cut relay 2: disconnected
  • PCM connector B (72P): disconnected
• Procedure
• • Perform the inspection according to the following table.

			(Disconnected) Starter cut relay 1 4P socket female 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
	ST_CUT_RLY1_CL- 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.
	ST_CUT_RLY1_CL- shorted to ground inspection	OFF			Not shorted

			(Disconnected) Starter cut relay 2 4P socket female 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
	ST_CUT_RLY2_CL- 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.
	ST_CUT_RLY2_CL- shorted to ground inspection	OFF			Not shorted

Results 

• If abnormal, there is a problem in the circuit.

IG1_START_CUT Circuit Inspection 

Test Procedure 

• Preparation
• • -

    Starter cut relay 1: disconnected

  • -

    Starter cut relay 2: disconnected

• Procedure
• • -

    Perform the inspection according to the following table.

			(Disconnected)Starter cut relay 1 4P socketfemale terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	IG1_START_CUT circuit inspection	ON		12 V battery voltage [circuit type 1]

			(Disconnected)Starter cut relay 2 4P socketfemale terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	IG1_START_CUT circuit inspection	ON		12 V battery voltage [circuit type 1]

Results 

• If abnormal, there is a problem in the circuit.

  If the power supply inspection of the above table showed abnormally, do the additional Power Supply Inspection , to locate the failure.

PCM Inspection (Starter Switch Internal Circuit) 

Preconditions 

• External circuit is normal.

Test Procedure 

• Preparation
• • -

    Body control module connector F (36P): disconnected

• Procedure
• • -

    Perform the inspection according to the following table.

			(Disconnected) Body control module connector F (36P) female terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	Unit internal circuit inspection	OFF		900 Ohm-1 MOhm

Results 

• If abnormal, there is a problem with the PCM.

PCM Inspection (Starter Cut Relay Internal Circuit) 

Preconditions 

• 12 volt battery is normal.
• Body control module is normal.
• Starter cut relays 1/2 are normal.
• External circuit is normal.

Test Procedure 

• Preparation
• • -Starter S terminal 1P connector: disconnected
  • -The HDS [ALL INJECTORS STOP] is selected

• Procedure
• • -Jump starter S terminal 1P connector terminal No. 1 and the 12 volt battery positive terminal with a jumper wire.

(Disconnected)Starter S terminal 1P connectormale terminals

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

• Normal Conditions
• • The engine cranks.

Results 

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

Body Control Module Inspection 

Preconditions 

• Brake pedal position switch is normal.
• External circuit is normal.
• PCM (starter switch internal circuit) is normal.

Test Procedure 

• Preparation
• • -The HDS [ALL INJECTORS STOP] is selected

• Procedure
• • Press the brake pedal.
  • Turn the vehicle to the START mode, and confirm the HDS [Starter Switch].

• Normal Conditions
• • -The HDS [Starter Switch] changed.

Results 

• If it is abnormal, there is a problem with the body control module.

Engine Assembly Inspection 

Test Procedure 

• If the other inspection item(s) indicated a normal condition, then it is determined that the remaining engine assembly is the cause.

Results 

• There is a problem with the engine assembly.
  NOTE: It is a mechanical problem in the engine (excessive drag).