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COM signal - When
controlling the voltage generated, the ECM sends the target
voltage data to the alternator via a PWM signal.(High voltage:
4V or higher, low voltage: 2V or lower)
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FR signal - The
transistor activation signal inside the alternator monitors
the voltage generated by the alternator to control the excitation
current before it sends the FR signal to the ECM. (At certain
RPM/electric loads, the FR duty can remain static. However,
more often, the RPM, electric load, target voltage, etc. are
always changing in the vehicle, so the FR must also change constantly)
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L signal - Turns
on the battery warning lamp on the dashboard when the battery
charging system malfunctions. (Conditions for turning on the
lamp - overcharge, over discharge, a field coil blown inside
the alternator)
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B+ terminal - The
output voltage from the generator travels to the battery via
the B+ terminal.
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1. Overrunning Alternator Decoupler (OAD) pully
2. Front bracket
3. Front bearing
4. Stator
5. Rotor
6. Rear bearing
7. Rear housing
8. Regulator assembly
9. Thr ...
1.
Disconnect the battery negative terminal.
2.
Disconnect the air compressor connector (A) and the alternator
connector (B), and remove th ...
See also:
Blower Resistor (Manual) Inspection
1.
Measure the resistance between the terminals.
2.
The measured resistance is not within specification, the blower
resistor must be replac ...
Closing the fuel filler lid
1. To install the cap, turn it clockwise until it “clicks” once. This indicates
that the cap is securely tightened.
2. Close the fuel filler lid and push it in lightly making sure that it is se ...
Ignition Coil Specification
Item
Specification
Primary Coil Resistance (Ω)
0.79 ± 15％ [20°C (68°F)]
Secondary Coil Resistance (kΩ)
5.9 ± 15％ [20 ...
Kia Soul: Alternator Circuit Diagram
Alternator Components
Alternator Removal