Operation Section
1
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21
Replacing the Injector
Replacing the Engine ECU
7.7 Injector Actuation Circuit
z In order to improve injector responsiveness, the actuation voltage has been changed to high voltage, speeding up both solenoid mag-
netization and the response of the TWV. The EDU or the charge circuit in the ECU raises the respective battery voltage to approxi-
mately 85V, which is supplied to the injector by signal from the ECU to actuate the injector.
Q001133E
"No correction resistance, cannot be detected electrically"
Replaced injector
Engine ECU
* Injector ID code must be registered with the engine ECU
Q001134E
"No correction resistance, cannot be detected electrically"
* Injector ID code must be registered with the engine ECU
Vehicle injectors
Replaced engine ECU
Q001246E
Constant
Amperage Circuit
High Voltage Generation Circuit
ECU
Actuating Current
<ECU Direct Actuation>
2WV#3 (No.4 Cylinder)
2WV#4 (No.2 Cylinder)
Injector
Common 1
2WV#1 (No.1 Cylinder)
2WV#2 (No.3 Cylinder)
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