Page text (OCR transcript)
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
