Toyota 4A-FE Repair Manual page 106

EFI SYSTEM - Troubleshooting with Volt/Ohmmeter Fl-37
Terminals of ECU (4A-FE 2WD)
Symbol
Terminal Name Symbol Terminal Name
E01 POWER GROUND PSW
THROTTLE POSITION SENSOR
E02
POWER GROUND THW WATER TEMP. SENSOR
No.10
INJECTOR E2
SENSOR GROUND
-·
No.20
INJECTOR
• 3
NSW
NEUTRAL ST ART SWITCH
STA STARTER MAGNETIC SWITCH
•I
HT
OXYGEN SENSOR
E1 ECU GROUND EGR
VSV (EGA)
It]
ox
OXYGEN SENSOR V-ISC VSV (ISC VALVE}
•
2
VAF
VARIABLE RESISTOR
T
CHECK CONNECTOR
G8
DISTRIBUTOR
VF
CHECK CONNECTOR
E21 SENSOR GROUND *
1
ACT
A/C AMPLIFIER
G1 DISTRIBUTOR SPD SPEED SENSOR
.
NE DISTRIBUTOR
FC
CIRCUIT OPENING RELAY
IGF IGNITER
A/C
A/C COMPRESSOR
IGT IGNITER *
1
R/P FUEL CONTROL SWITCH
IDL THROTTLE POSITION SENSOR BATT BATTERY
THA INTAKE AIR TEMP . SENSOR
w
CHECK ENGINE WARNING LIGHT
VCC VACUUM SENSOR
+81
EFI MAIN RELAY
PIM VACUUM SENSOR
+B
EFI MAIN RELAY
ECU Terminals
•
1
:
w/
EGR System,
*
2
:
w/o EGR System, *
3 :
A/T
I I
E01
No.
STA
1%
GF)
G1
IGF IGT THA PIM
THW NSW EGR T
ACT
-
-
FC
R/P
BATT +81
10
f
E02
No.
E1
-
E21
NE
-
IDL
vcc
PSW
20
E2
HT
V-
VF
-
-
SPO A/C
-
w
+B
ISC
F14266