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Igniteir Circuit Malfunction 
Toyota DTC P1300, 1305, 1310, 1315, 1320, 1325, 1330, 1340 (MIL-code 15) 

Прим. В зависимости от типа двигателя, года выпуска и т.п. возможны другие варианты подключения, номера контактов, цвета проводов..., но суть таже.

   A DIS (Direct Ignition System) has been adopted. The DIS improves the ignition timing accuracy, reduces high-voltage loss, and enhances the overall reliability of the ignition system by eliminating the distributor. The DIS is a 2-cylinder simultaneous ignition system which ignites 2 cylinders simultaneously with one ignition coil. In the 2-cylinder simultaneous ignition system, each of the 2 spark plugs is connected to the end of the secondary winding. High voltage generated in the secondary winding is applied directly to the 2 spark plugs. In one of the spark plugs, the spark passes from the center electrode to the ground electrode and in the other plug the discharge is in the opposite direction, i.e. from ground to center electrodes.
  The ECM determines ignition timing and outputs the ignition signals (IGT) for each cylinder. Based on IGT signals, the igniter controls the primary ignition signals (IGC) for all ignition coils. At the same time, the igniter also sends an ignition confirmation signal (IGF) as a fail-safe measure to the ECM.
WIRING DIAGRAM
Ignition Coils And Igniter Circuit INSPECTION PROCEDURE