Toyota 4A-FE Repair Manual page 107

Fl-38
No.
Terminals
1
+B
- E1
+81
2
BATT - E1
IDL - E2
3
PSW - E2
4 No.10 E01
-
No.20 E02
5
w
- E1
PIM - E2
6
vcc
- E2
7 THA - E2
8 THW - E2
9
STA - E1
10 IGT - E1
11 A/C - E1
ECU Terminals
E01
No.
STA
10
E02 No. El
20
EFI SYSTEM - Troubleshooting with Volt/Ohmmeter
STD voltage (V)
10 - 14
10 - 14
4.5 - 5.5
10 - 14
10 - 14
' 3.3 - 3.9
4.5 - 5.5
2.0 - 2.5
0.4 - 0.7
6 - 14
0.7 - 1.0
5 - 14
I
oy
VAF
Gf1 G1 IGF IGT
Voltage
at
ECU wiring connectors
(4A-FE 2WD)
Condition
Ignition SW ON
-
Throttle valve open
Ignition SW ON
Throttle valve fully closed
Ignition SW ON
No trouble ("CHECK ENGINE" warning light off) and
engine running
Ignition SW ON
Intake air temp. 20°C (68°F)
Ignition SW ON
Coolant temp. 80°C (1 76°F)
Cranking
Idling
Air conditioning ON
I
THA PIM THW NSW EGA
T
ACT
-
-
FC R/P
BATT
See page
Fl-39
Fl-40
Fl-41
Fl-42
Fl-43
· · -
Fl-44
Fl-45
Fl-46
Fl-47
Fl-48
Fl-49
+Bl
E21 NE
IDL VCC PSW E2 HT
~-C
VF - SPD A/C - W +B
Fl4266
I