Page text (OCR transcript)
EFI SYSTEM — Troubleshooting for EFI Electronic Circuit with Volt/Ohmmeter
No. | Terminals | Trouble | Condition | STD Voltage
5 | STA — E₁ | No voltage | Ignition switch ST position | 6 — 12 V
[Circuit Diagram showing:
Battery connected to Ignition S/W, which connects to (For M/T) Cold Start Injector and Neutral Start S/W (For A/T), then to Starter and Circuit Opening Relay, connecting to ECU with terminals STA and E₁]
FI0740
1. There is no voltage between ECU terminals STA and E₁.
(IG S/W ST)
Voltmeter → ECU
[Diagram showing voltmeter connection to ECU at STA terminal]
Check starter operation. → OK → Check wiring between ECU and starter terminal 50.
↓ BAD
↓ OK → BAD
Repair or replace
Check wiring between ECU terminal E₁ and body ground.
↓ BAD
Repair or replace
Check fusible link, battery, wiring and ignition switch. → BAD → Repair or replace
↓ OK
2. Check that there is voltage at STA (50) terminal of starter.
(IG S/W ST) STD voltage: 9 — 11 V
↓ OK → NO
Check starter. | Check wiring between ignition switch ST terminal and starter STA (50) terminal.
FI0760
FI0750
Voltmeter
[Diagram showing voltmeter connection to Starter at STA (Terminal 50)]
