Starter System Circuit Troubleshooting: Inspection

Ring Gear Visual Inspection 

Test Procedure 

• Preparation
  • Torque converter cover: removed

• Procedure
  • Check damaged or worn ring gear of 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 or worn drive gear of the starter.

• Normal Conditions
  • Not damaged or worn.

Results 

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

Starter Functional Inspection 

NOTE:  When checking the current draw, you can use the GR8 battery diagnostic station with AST module (12 volt). For setup, customization, and other available features, refer to the GR8 user's manual.

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.

• 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 80 A and 380 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 .
  • 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 chart.

			(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 it is 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, PGND [ST_MG_SW] Circuit Inspection 

Test Procedure 

• Preparation
  • Starter S terminal connector (1P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Starter S terminal connector (1P) female terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions

	PGND [ST_MG_SW] open wire inspection	OFF		There is less than 1 Ohms (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 shorted to ground inspection	OFF		Not shorted (inspection circuit includes a diode)

Results 

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

+B_STOP Circuit Inspection 

Test Procedure 

• Preparation
  • Brake pedal position switch connector (4P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Brake pedal position switch connector (4P) female 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 it is 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 [BRK_DIAG] Circuit Inspection 

Test Procedure 

• Preparation
  • Brake pedal position switch connector (4P): disconnected
  • Body control module connector A (66P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Brake pedal position switch connector (4P) female terminals	(Disconnected) Body control module connector A (66P) female terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	STOP_SW [BRK_DIAG] open wire inspection	OFF			There is less than 1 Ohms

Results 

• If it is 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 C (66P): disconnected
  • PCM connector B (72P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Body control module connector C (66P) female terminals	(Disconnected) PCM connector B (72P) 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 Ohms
	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 it is abnormal, there is a problem in the circuit.

+B_START_CUT_RLY Circuit Inspection 

Test Procedure 

• Preparation
  • Relay circuit board connector A (18P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Relay circuit board connector A (18P) female 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 it is 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_RLY_1_TO_2 Circuit Inspection 

NOTICE:  

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

Test Procedure 

• Preparation
  • Relay circuit board connector B (12P): disconnected
  • PCM connector B (72P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Relay circuit board connector B (12P) female terminals	(Disconnected) PCM connector B (72P) female terminals

		IG Mode	Courtesy of HONDA, U.S.A., INC.	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	ST_RLY_1_TO_2 open wire inspection	OFF			There is less than 1 Ohms
	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_RLY_1_TO_2 shorted to ground inspection	OFF			Not shorted

Results 

• If it is 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
  • Relay circuit board connector B (12P): disconnected
  • PCM connector B (72P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Relay circuit board connector B (12P) female terminals	(Disconnected) PCM connector B (72P) 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 Ohms
	ST_CUT_RLY2_CL- open wire inspection	OFF			There is less than 1 Ohms
	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
	ST_CUT_RLY2_CL- shorted to ground inspection	OFF			Not shorted

Results 

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

IG1_ST_CUT_RLY Circuit Inspection 

Test Procedure 

• Preparation
  • Relay circuit board connector B (12P): disconnected
• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Relay circuit board connector B (12P) female terminals

		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	IG1_ST_CUT_RLY circuit inspection	ON		12 V battery voltage [circuit type 1]

Results 

• If it is 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 

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
  • Body control module connector C (66P): disconnected

• Procedure
  • Perform the inspection according to the following chart.

			(Disconnected) Body control module connector C (66P) female terminals

		IG Mode	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	Unit internal circuit inspection	OFF		900 Ohms - 1 M Ohms

Results 

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

PCM Inspection (Starter Cut Relay Internal Circuit) 

NOTE:  Since there is no direct method to test the component itself, troubleshooting is performed on the related components.

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.

• 12 volt battery is normal.
• Body control module is normal.
• Relay circuit board is normal.
• External circuit is normal.

Test Procedure 

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

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

(Disconnected)Starter S terminal connector (1P)male 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 

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.

• 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).