Toyota ZZT230 series Repair Manual page 325

Dl-114
DTC P1300
DTC P1 305
DTC P131 0
DTC P1315
CIRCUIT DESCRIPTION
A DIS (Direct Ignition System} has been adopted. The DIS improves the ignition timing accuracy, reduces
high-voltage loss, and enhances the the overall reliability of the ignition system by eliminating the distributor.
The DIS Is a 1-cylinder ignition system which ignites one cylinder with one ignition coil. In the 1-cyllnder
Ignition system, the one spark plug is connected to the end of the secondary winding. High voltage generated
in the secondary winding is applied directly to the spark plug. The spark of the spark plug pass from the center
elecrtode to the ground electrode.
The ECM determines Ignition timing and outputs the ignition signals (tGn for each cylinder. Based on IGT
signals, the power transistors in the igniter cuts off the current to the primary coil in the Ignition coil is supplied
to the spark plug that are connected to the end of the secondary coil. At the same time, the igniter also sends
an ignition confirmation signal (IGF ) as a fail-safe measure to the ECM.
DTC No.
P1300
P1305
to
No IGF signal
P1310
P1315
Igniter Circuit Malfunction (No.1)
Igniter Circuit Malfunction (No.2)
Igniter Circuit Malfunction (No.3)
Igniter Circuit Malfunction (No.4)
DTC Detecting Condition
is
ECM while eoglne running
T rot�ble Area
•Ignition system
•Open or short in IGF1 and IGT1 - 4 Circui11rom
ignition coil with igni1er
• No.1 - No.4 ignition coil wilh igni1er
•ECM
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