Kia Picanto: Ignition System / Ignition Coil

Kia Picanto JA 2017-2024 Service & Repair Manual / Engine Electrical System / Ignition System / Ignition Coil

Description and operation
Description
An ignition coil is an induction coil in an engine's ignition system which transforms the battery's low voltage to the high voltage needed to create an electric spark in the spark plugs to ignite the fuel. Coils have an internal resistor while others rely on a resistor wire or an external resistor to limit the current flowing into the coil from the battery 12 V supply.
Schematic diagrams
Circuit Diagram
[A/T]

[M/T]

Connector View

Ignition Coil Terminal Function
[A/T]
Ignition Coil (Cylinder #1)
Pin No.
Description
Connected to
1
Ground
Chassis
2
ignition Coil #1 Control output
ECM K(57)
3
-
 
4
Battery power (B+)
Main Relay

Ignition Coil (Cylinder #2)
Pin No.
Description
Connected to
1
Ground
Chassis
2
ignition Coil #2 Control output
ECM K(91)
3
-
 
4
Battery power (B+)
Main Relay

Ignition Coil (Cylinder #3)
Pin No.
Description
Connected to
1
Ground
Chassis
2
ignition Coil #3 Control output
ECM K(74)
3
-
 
4
Battery power (B+)
Main Relay

[M/T]
Ignition Coil (Cylinder #1)
Pin No.
Description
Connected to
1
Ground
Chassis
2
ignition Coil #1 Control output
ECM A(17)
3
-
 
4
Battery power (B+)
Main Relay

Ignition Coil (Cylinder #2)
Pin No.
Description
Connected to
1
Ground
Chassis
2
ignition Coil #2 Control output
ECM A(2)
3
-
 
4
Battery power (B+)
Main Relay

Ignition Coil (Cylinder #3)
Pin No.
Description
Connected to
1
Ground
Chassis
2
ignition Coil #3 Control output
ECM A(1)
3
-
 
4
Battery power (B+)
Main Relay

Repair procedures
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery terminal.
2.
Remove the air cleaner.
(Refer to Engine Mechanical System - "Air Cleaner")
3.
Disconnect the ignition coil connector (A).
4.
Remove the ignition coil (B) after loosening the mounting bolts.
Ignition coil mounting bolt:
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 Ib·ft)

   
Remove the ignition coil connector by pulling out the lock pin (A) and pushing the clip (B).

Installation
1.
Install in the reverse order of removal.
Ignition System
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