Check these ECU pins for 12V with ignition ON:
| Pin | Name | Description | Wire Color (Typical) | | :--- | :--- | :--- | :--- | | 1 | IGSW | Ignition Power | Black/White | | 3 | E01 | Engine Ground | Brown | | 5 | #10 | Injector 1 | Red | | 6 | #20 | Injector 2 | White | | 7 | #30 | Injector 3 | Green | | 8 | #40 | Injector 4 | Blue | | 9 | E1 | Sensor Ground | Brown | | 10 | +B | Battery Power | Black/Orange | | 12 | STA | Starter Signal | Black/White |
Standard voltage checks for a healthy 1KZ ECU at idle generally include: : ~5V (Sensor reference voltage). : ~1.3V–1.9V at atmospheric pressure.
Check these ECU pins for 12V with ignition ON:
| Pin | Name | Description | Wire Color (Typical) | | :--- | :--- | :--- | :--- | | 1 | IGSW | Ignition Power | Black/White | | 3 | E01 | Engine Ground | Brown | | 5 | #10 | Injector 1 | Red | | 6 | #20 | Injector 2 | White | | 7 | #30 | Injector 3 | Green | | 8 | #40 | Injector 4 | Blue | | 9 | E1 | Sensor Ground | Brown | | 10 | +B | Battery Power | Black/Orange | | 12 | STA | Starter Signal | Black/White |
Standard voltage checks for a healthy 1KZ ECU at idle generally include: : ~5V (Sensor reference voltage). : ~1.3V–1.9V at atmospheric pressure.
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