Output to the instrument cluster's Malfunction Indicator Lamp. Helpful Resources
: Crankshaft or camshaft position signals from the distributor for timing. 4A-F Auto to 4A-FE Manual | Page 3 - Toyota Forum toyota 4afe ecu pinout
Controls the bypass air valve to maintain idle under load. toyota 4afe ecu pinout
The signal from the MAP sensor. THA: Intake Air Temperature sensor signal. THW: Coolant Temperature sensor signal. toyota 4afe ecu pinout