Inspect Resistance Of Ecu - Toyota 7M-GE Repair Manual

EFI SYSTEM - Electronic Control. System
FL127
ECU Wiring
. .
3.
INSPECT RESISTANCE OF ECU
CAUTION: .-
l
Do not touch the ECU terminals.
0 The tester probe should be inserted into the wiring
connector from the wiring side.
Check the resistance between each terminal of the wiring
connectors.
l
Disconnect the wiring connectors from the ECU.
0 Measure th.e resistance each terminal.
I
Resistance of ECU Wiring Connectors
Terminals Condition
. I
Resistance Ifi)
I
IDL : E2
VTA - E2
VC WCC) - E2
Throttle valve open
Throttle valve fully closed
Throttle valve fully open
Throttle valve fully closed
cc
Less than 2,300
3,500 - 10,300
300 - 6,300
200 - 400
*'VS - E2
Measuring plate fully closed
Measuring plate fully open
20 - 600
20 - 1,200
I
*2KS -E2
co
I
I I
"2E2 +KS
-
5,000 - 10,000
I
I
"2VC -E2
10,000 - 15,000
I
"2E2 -+VC
I I
5,000 - 10,000
I
THA - E2
THW - E2
Gl,G2 - GO
NE-GO
Intake air temperature
. Coolant temperature
2,000 - 3,000
200 - 400
140 - 180
Iscl, I%2 _ +a (8)
ISC3, ISC4
10-30
+2 HAC - E2 2,900 - 4,200
*I 7M-GE only
*2 7M-GTE only