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IGNITION COIL CONSTRUCTION/OPERATION

BHE011801008T03

## Construction

• Distributorless ignition coils have been adopted, and two ignition coils are installed each on both the trailing and leading sides. By adopting the distributorless ignition coil, the distributor has been eliminated in order to simplify the parts of the ignition system, and also to prevent voltage reduction occurring between the parts improving firing efficiency.

• Independent firing control has been adopted to eliminate firing without spark, increasing firing energy.

## Operation

• The firing timing of the coil is controlled by the PCM by means of a built-in igniter for optimum ignition timing control.

1 | Ignition coil front view
2 | Ignition coil side view
3 | Ignition coil internal circuit
4 | To spark plug
5 | Secondary terminal
6 | Ignition coil electrical system wiring diagram
7 | PCM
8 | IG condenser
9 | T/F
10 | T/R
11 | L/F
12 | L/R
13 | IG SW
14 | Battery

Terminal layout

Terminal | Signal
3 terminals | A | Ignition coil control signal
B | Ground
C | Ignition coil power supply