FI-122 EFI SYSTEM — Electronic Control System 7M-GE ECU Voltmeter E1 7M-GTE ECU Voltmeter E1 E2 B F02789 F02811 Electronic Controlled Unit (ECU) INSPECTION OF ECU HINT: The EFI circuit can be checked by measuring the resistance and voltage at the wiring connectors of the ECU. 1. (7M-GTE) PREPARATION (See page FI-50) 2. INSPECT VOLTAGE OF ECU Check the voltage between each terminal of the wiring connectors. • Turn the ignition switch ON. • Measure the voltage at each terminal. HINT: • Perform all voltage measurements with the connectors connected. • Verify that the battery voltage is 11V or more when the ignition switch is ON. Voltage at ECU Wiring Connectors Terminals | STD Voltage | Condition BATT — E1 | — | — IG SW — E1 | 10 — 14 | Ignition SW ON M-REL — E1 | 10 — 14 | Ignition SW ON +B (+B1) — E1 | — | — IDL — E2 (7M-GE) | 10 — 14 | Throttle valve open IDL — E2 (7M-GTE) | 4 — 6 | Throttle valve open VC — E2 | 4 — 6 | Ignition SW ON | — VTA — E2 | 0.1 — 1.0 | — | Throttle valve fully closed | 4 — 5 | — | Throttle valve fully open *1 VS — E2 | 3.7 — 4.3 | Ignition SW ON | Measuring plate fully closed | 0.2 — 0.5 | | Measuring plate fully open | 2.3 — 2.8 | | Idling | 1.0 — 2.0 | | 3,000 rpm *2 KS — Body ground | 4 — 6 | | Ignition SW ON | 2 — 4 | | Cranking or running *2 VC — Body ground | 4 — 6 | | Ignition SW ON