Toyota 4A-FE Repair Manual page 164

Ohmmeter
~
Terminals
IDL - E2
PSW - E2
THA - E2
THW - E2
G1 - G
8
NE - GA
ECU Terminals (2WDl
I
EOl
No
-
%
Gel
10
AF
E02
No.
-
E21
20
-
EFI SYSTEM - Electronic Control System Fl-151
G1
NE
2. INSPECT RESISTANCE OF ECU
NOTICE:
• Do not touch the ECU terminals.
• The tester probe should be inserted into the wiring
connector from the wiring side.
Check the resistance between each terminal of the wiring
connectors.
• Disconnect the connectors from the ECU.
• Measure the resistance at each terminal.
F14559
Resistance of ECU Wiring Connectors (4A-FE)
Condition Resistance (0)
Throttle valve open Infinity
Throttle valve fully closed 0
--
.
Throttle valve fully open
0
Throttle valve fully closed
Infinity
Intake temperature 20°C (68°F) 2,000 - 3,000
Coolant temperature B0°C (1 76°F} 200 - 400
-
140 - 180
-
140 - 180
I
IGF IGT THA
PIM
THW NSW EGR
T ACT
-
-
FC
AtP
BATT
+Bl
-
IDL
VCC PSW
HT
E2 V-ISC VF
-
-
SPD
A/C
- w
+B
Fl4266
FI0234