Starting System: 1I-1
Starting System
Precautions
Cranking System Note
S5JB0A1900001
NOTE
Starting motor varies depending on specifications, etc.
Therefore, be sure to check model and specification of the vehicle being serviced before replacing
parts.
General Description
Cranking Circuit Introduction
S5JB0A1901001
The cranking circuit consists of the battery, starting motor, ignition switch, and related electrical wiring. These
components are connected electrically.
Starting Motor Circuit Description
S5JB0A1901002
• The magnetic switch coils are magnetized when the ignition switch is closed.
• The resulting plunger and pinion drive lever movement causes the pinion to engage the engine flywheel gear and
the magnetic switch main contacts to close, and cranking takes place.
• When the engine starts, the pinion over-running clutch protects the armature from excessive speed until the switch
is opened, at which time the return spring causes the pinion to disengage.
I5JB0A190004-01
1. Pinion drive lever
6. Magnetic switch contacts
11. Ignition & Starter switch
2. Pinion & Over-running clutch
7. Pull-in coil
12. Battery
3. Magnetic switch
8. Starting motor
13. To ECM
4. Hold-in coil
9. Starting motor control relay
5. Plunger
10. A/T: Transmission range switch (shift lever switch)
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