FI-58 EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE) • VC — Body ground ① There is no voltage between ECU terminals VC and body ground. (IG SW ON) ② Check that there is voltage between ECU terminal +B (+B1) and body ground. (IG SW ON) OK NO Refer to No. 1. (See page FI-54) ③ Check wiring between ECU terminal E1 and body ground. OK BAD Check wiring between ECU and air flow meter. Repair or replace. OK BAD Try another ECU. Repair or replace. F03724 F02757 F02756