Toyota 4A-FE Repair Manual page 148

Fl-134
EFI SYSTEM - Electronic Control System
(AT)
FL MAIN 0.85R
FL
MAIN
2 .0L
Battery
Continuity
( I
-/l
.1 1
-::!:..-
> ! - - - - - - . .
No Continuity
~
0
()
' ,
(AE)
FL
AM2
30A
Continuity
ir= ~ ,l
11 ( ;
I'
lbd
Continuity
DC]
BE0375
BE0376
BE0009
EFI Main Relay
Fuse
EFI
15A
EFI Main Relay ECU
~--o----.----<'l
+
B
Fuse
IGN
1 OA (AE)
7.5A (AT)
~ · ----o
+81
E1
INSPECTION OF EFI MAIN RELAY (AE)
1. INSPECT RELAY CONTINUITY
Fl5177
(a) Using an ohmmeter, check that there is continuity
between terminals 1 and 2.
(b) Check that there is no continuity between terminals 3
and 4.
If continuity is not as specified, replace the relay.
2. INSPECT RELAY OPERATION
(a)
Apply battery voltage across terminals 1 and 2.
(b) Using an ohmmeter, check that there is continuity
between terminals 3 and 4.
If operation is not as specified, replace the relay.
INSPECTION OF EFI MAIN RELAY (AT)
1. INSPECT RELAY CONTINUITY
(a)
Using an ohmmeter, check that there is continuity
between terminals
1 and 3_
(b) Check that there is no continuity between terminals 2
and 4.
If continuity is not as specified, replace the relay.