Toyota ZZT230 series, Repair Manual

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Dl-114
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DTC P1300
Igniter Circuit Malfunction (No.1)
DTC P1 305
Igniter Circuit Malfunction (No.2)
DTC P131 0 Igniter Circuit Malfunction (No.3)
DTC P1315
Igniter Circuit Malfunction (No.4)
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. DTC Detecting Condition T rot�ble Area
P1300
•Ignition system
P1305
•Open or short in IGF1 and IGT1 - 4 Circui11rom
P1310
No IGF signal
to
ECM while eoglne
is
running
ignition coil with igni1er
P1315
• No.1 - No.4 ignition coil wilh igni1er
•ECM
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