FI-56 EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE) ● VC – E2 ① There is no voltage between ECU terminals VC and E2. (IG SW ON) Check that there is voltage between ECU terminal +B (+B1) and body ground. (IG SW ON) OK ② Check throttle position sensor. (See page FI-101) BAD Repair or replace. OK Check wiring between ECU and throttle position sensor. OK Try another ECU. NO Refer to No. 1. (See page FI-54) BAD Repair or replace wiring. ● VTA – E2 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 Refer to VC – E2 trouble section. OK ③ Check throttle position sensor. BAD Repair or replace. OK Check wiring between ECU and throttle position sensor. BAD Repair or replace. OK Try another ECU. (See page FI-101) ECU Voltmeter VC E2 F02763 ② Ohmmeter VC VTA IDL E2 F02835 ECU Voltmeter VTA E2 F02763 ② ECU Voltmeter VC E2 F02764 ③ (See page FI-101) Ohmmeter VC VTA IDL E2 F02835