A02280
Engine ECU
Battery
Engine Room J/B
V--Y
V--Y
(A/T)
V--Y
(A/T)
IC1
1
STA
E6
11
(M/T)
(A/T)
P--B
V--Y
5
6
Sta
rt
S
w
itc
h
N
eut
ra
l
(A/T)
P--B
IC1
8
(A/T)
P--B
(M/T)
P--B
IJ1
15
V--Y
2
2
Starter Relay
3
2
5
1
2
2
B--W
EB1
B--W
EB
S2
S3
B--L
2
2
30A
A
M
2
2
Ignition
Switch
W--R
7
8
B
STA
2
2
2
1
1
P--B
P--B
P--B
W
From Ignition Switch
W--B
25
2
P--B
IJ1
Engine Room R/B
Engine Room R/B
A
A B--W
J1 J/C
1
1
W
B--L
E
ngine
Room
R/
B
3RZ--FE:
DI--162
--
DIAGNOSTICS
ENGINE (2RZ--FE, 3RZ--FE)
Starter Signal Circuit
CIRCUIT DESCRIPTION
When the engine is cranked, the intake air flow is slow, so fuel vaporization is poor. A rich mixture is therefore
necessary in order to achieve good startability. While the engine is being cranked, the battery voltage is ap-
plied to terminal STA of the engine ECU. The starter signal is mainly used to increase the fuel injection vol-
ume for the starting injection control and after--start injection control.
WIRING DIAGRAM
DI1IR--01
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Pages From Supplement
3RZ-F,3RZ-FE
