Work Flow
OVERALL SEQUENCE
DETAILED FLOW
- To ensure a complete and thorough diagnosis, the battery, starter motor and generator test segments must be done as a set from start to finish.
- If any malfunction is found, immediately disconnect the battery cable from the negative terminal.
- CHECK ENGINE START
- Crank engine and check that engine starts.
Does engine start?
YES>>
GO TO 2.
NO>>
GO TO 3.
- CHECK RETURN OF PINION GEAR
- Check that pinion gear returns to original position after engine starts.
Does pinion gear return?
YES>>
Starter motor is OK. Inspection End.
NO>>
GO TO 9.
- CHECK ENGINE SPEED WITH CRANKING
- Check that engine turns while cranking.
Does engine turn by cranking?
YES>>
GO TO 4.
NO>>
GO TO 5.
- CHECK STARTER MOTOR TURNING WITH CRANKING
- Check that starter motor runs smoothly without abnormal noise at cranking.
Does starter motor turn normally?
YES>>
Check ignition/fuel system.
NO>>
Check engine mechanical and power train system.
- CHECK STARTER MOTOR SPEED WITH CRANKING
- Check that starter motor turns while cranking.
Does starter motor turn at cranking?
YES>>
GO TO 6.
NO>>
GO TO 7.
- CHECK PINION GEAR AND RING GEAR ENGAGEMENT
- Check condition of pinion and ring gear engagement.
Is inspection result normal?
YES>>
Check engine mechanical and power train system.
NO>>
Check pinion protrusion length. Refer to STARTER MOTOR : Inspection (with PR25DD engine) or STARTER MOTOR : Inspection (with KR20DDET engine).
- CHECK POWER SUPPLY CIRCUIT
- Check the following conditions:
- Fuse and fusible link.
- Charge condition, corrosion and connection condition of the battery. Refer to Work Procedure .
Are these inspection results normal?
YES>>
GO TO 8.
NO>>
Repair as needed.
- Check the following conditions:
- CHECK STARTING SYSTEM WIRING
- Check the following:
- "B" terminal circuit. Refer to Diagnosis Procedure (with PR25DD engine) or Diagnosis Procedure (with KR20DDET engine).
- "S" terminal circuit. Refer to "S" terminal circuit. Refer to Diagnosis Procedure .
Are these inspection results normal?
YES>>
GO TO 9.
NO>>
Repair as needed.
- Check the following:
- CHECK MAGNETIC SWITCH OPERATION
- Check magnetic switch operation. Refer to STARTER MOTOR : Inspection (with PR25DD engine) or STARTER MOTOR : Inspection (with KR20DDET engine).
Does magnetic switch operate normal?
YES>>
GO TO 10.
NO>>
Replace magnetic switch or starter motor.
- CHECK PINION TURNING
- Remove starter motor.
- Check that pinion turns smoothly by hand.
Does pinion turn normally?
YES>>
Perform no-load test of starter motor. Refer to STARTER MOTOR : Inspection (with PR25DD engine) or STARTER MOTOR : Inspection (with KR20DDET engine).
NO>>
Check pinion clutch. Refer to STARTER MOTOR : Inspection (with PR25DD engine) or STARTER MOTOR : Inspection (with KR20DDET engine).