Toyota Land Cruiser 1988 Repair Manual page 163

Fl-32 EFI SYSTEM Troubleshooting with Volt/Ohmmeter
CD •
+
B (
+
81)
B1
CD
There is no voltage between ECU terminals
+
B (
+
B1) and
E1. (IG S/W ON)
®Check that there is voltage between ECU terminal
+
B
( +
81) and body ground. (JG S/W ON)
FI0299
NO
~OK
Check wiring between ECU terminal E1 and
body ground.
~OK
l
BAD
Try
another ECU. Replace or repair.
BAD
Check fuse, fusible link and
Repair or replace.
wiring harness.
OK
BAD
Check EFI main relay. Replace.
OK
Refer to M-REL- E1 trouble
section.