Page text (OCR transcript)
FI-66 EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)
No. | Terminals | Trouble | Condition | STD Voltage
11 | W — E1 | No voltage | No. trouble ("CHECK ENGINE" warning light off) and engine running | 8 — 14 V
ECU
FUSE
GAUGE 7.5A | "CHECK ENGINE" Warning Light
Combination Meter
W
E1
F02728
① There is no voltage between ECU terminals W and E1. (oding)
ECU
Voltmeter
E1
W
F02772
② Check that there is voltage between ECU terminal W and body ground.
NO | OK
③ Check wiring between ECU terminal E1 and body ground.
OK | BAD
Try another ECU. | Repair or replace.
ECU
Voltmeter
W
F02773
Check GAUGE fuse (7.5A) and "CHECK ENGINE" warning light.
OK | BAD
Repair or replace.
Fuse blows again
ECU
Ohmmeter
E1
F02766
Check wiring between ECU terminal W and fuse. | BAD | Repair or replace.