EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE) FI-37 ● VC — E2 (1) ECU VC E2 Voltmeter V F11621 (2) E2 VC Ohmmeter Ω Thickness Gauge F12715 (1) There is no voltage between ECU terminals VC and E2. (IG SW ON) (2) Check that there is voltage between ECU terminal +B (+B1) and body ground. (IG SW ON) OK NO ↓ (3) Check throttle position sensor. Refer to No. 1. (See page FI-101) (See page FI-35) BAD OK ↓ ↓ Repair or replace. Check wiring between ECU and throttle position sensor. OK BAD ↓ ↓ Try another ECU. Repair or replace wiring ● VTA — E2 (1) ECU VTA E2 Voltmeter V F11626 (2) ECU VC E2 Voltmeter V F11678 (3) E2 VTA Ohmmeter Ω Thickness Gauge F12709 (1) There is no specified voltage at ECU terminals VTA and E2. (IG SW ON) (2) Check that there is voltage between ECU terminal VC and E2. (IG SW ON) NO OK ↓ ↓ Refer to VC — E2 (3) Check throttle position sensor. trouble section. BAD OK OK ↓ ↓ ↓ Repair or replace. Check wiring between ECU and throttle position sensor. BAD ↓ Repair or replace. OK ↓ Try another ECU.