Toyota 2GR-FE Manual page 402

ES–246
C. Both of the following conditions are met:
(a) Engine speed
(b) Battery voltage
D. All of the following conditions are met:
(a) Engine speed
(b) Battery voltage
(c) Number of sparks after CPU reset
TYPICAL MALFUNCTION THRESHOLDS
Ignition signal fail count
Ignition signal fail count
COMPONENT OPERATING RANGE
ES
IGF signal
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
-
500 rpm or less
6 V or more
-
More than 500 rpm
10 V or more
5 sparks or more
More than 2 times
No ignition confirmation signal from ignitor
Igniter transmits IGF signal when it receives IGT signal from ECM