Ignition Coil

Specifications

Specification

Item	Specification
Rated Voltage (V)	12
Operating Voltage (V)	5 - 16

Description and Operation

Description

The ignition coil is an induction coil in the engine ignition system that converts the low voltage of the battery into the high voltage required to create an electric spark at the spark plug to ignite the fuel. Some coils have an internal resistor, while others rely on a resistor wire or external resistor to limit current. The coil receives 12 V power from the battery.

Troubleshooting

Troubleshooting

Check the connector assembly condition

1. Disconnect the connector (A) and reconnect it.

   

   

   

Ignition coil position change test for each cylinder. A: Ignition coil with misfire code. B: Ignition coil without misfire code.

Do not move the spark plugs at the same time (move only one ignition coil at a time).

Repair Procedures

Removal

Ignition Coil (Cylinder No. 1) [Bank 1]

1. 1
   Remove the coolant reservoir. (Refer to Engine Mechanical System - Coolant Reservoir)
2. 2
   Remove the belt (A).
3. 3
   Disconnect the ignition coil connector (B).
4. 4
   Remove the ignition coil by loosening the mounting bolt (C).

   

Ignition Coil (Cylinder No. 2) [Bank 2]

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
2. 2
   Disconnect the ignition coil connector (A).
3. 3
   Remove the ignition coil by loosening the mounting bolt (B).

   

Ignition Coil (Cylinder No. 3) [Bank 1]

1. 1
   Remove the coolant reservoir. (Refer to Engine Mechanical System - Coolant Reservoir)
2. 2
   Remove the belt (A).
3. 3
   Disconnect the ignition coil connector (B).
4. 4
   Remove the ignition coil by loosening the mounting bolt (C).

   

Ignition Coil (Cylinder No. 4) [Bank 2]

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
2. 2
   Disconnect the ignition coil connector (A).
3. 3
   Remove the ignition coil by loosening the mounting bolt (B).

   

Ignition Coil (Cylinder No. 5) [Bank 1]

1. 1
   Remove the coolant reservoir. (Refer to Engine Mechanical System - Coolant Reservoir)
2. 2
   Remove the belt (A).
3. 3
   Disconnect the ignition coil connector (B).
4. 4
   Remove the ignition coil by loosening the mounting bolt (C).

   

Ignition Coil (Cylinder No. 6) [Bank 2]

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
2. 2
   Disconnect the ignition coil connector (A).
3. 3
   Remove the ignition coil by loosening the mounting bolt (B).

   

   To disconnect the ignition coil connector, pull the lock pin (A) and press the clip (B).

Installation

1. Install in the reverse order of removal. Ignition coil mounting bolt: 9.8–11.8 N·m