Toyota 3F-E - Page 90

ECU
M-REL
0 0
0
Voltmeter
q o q
ooa000 q
^o q
o0000000
oo q 000000
^0000000a000
E1
F 10315
EFI SYSTEM — Tr
oub l
eshooting
with Volt/Ohmmeter
FI-31
•
IG SW —
El
O
There is no voltage between ECU terminals IG SW and El.
(IG SW ON)
Check that there is voltage between ECU terminal IG SW
and
body
ground. (IG SW ON)
NO
OK
Check wiring between ECU terminal El and body
ground.
OK
BAD
Try another ECU.
I
Replace or repair
BAD
Check fuse, fusible link and
ignition switch.
Repair or replace
ig
• M-REL —
El
O
There is no voltage between ECU terminals M-REL and El.
(IG SW ON)
O
Check that there is voltage between ECU terminal M-REL
and body ground. (IG SW ON)
NO
OK
Check wiring between ECU terminal El and
body ground.
OK
BAD
Try another ECU.
Replace or repair.
BAD
Check EFI main relay and wiring
Replace.
harness. (See page FI-70)
OK
Try another ECU.
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