Page text (OCR transcript)
EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE) FI-45
No. | Terminals | Trouble | Condition | STD Voltage
10 | 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 | W
Combination Meter | E1
FI0726
1
ECU
Voltmeter | W
| E1
V
FI1261
2
ECU
Voltmeter | W
V
FI1290
3
E1 | ECU
Ohmmeter
Ω
FI0333
1 There is no voltage between ECU terminals W and E1.
(Idling)
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.
Check GAUGE fuse (7.5A) and "CHECK
ENGINE" warning light.
OK | BAD
Repair or replace.
Fuse blows again
Check wiring between ECU | BAD | Repair or replace.
terminal W and fuse.