Tacoma Regular Cab 2WD L4-2.4L (2RZ-FE) (2000)
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Starter Signal: Testing and Inspection
CIRCUIT DESCRIPTION
When the engine is cranked, the intake air flow is slow, so fuel vaporization is poor. A rich mixture is therefore necessary in order to achieve good
startability. While the engine is being cranked, the battery positive voltage is applied to terminal STA of the ECM. The starter signal is mainly used to
increase the fuel injection volume for the starting injection control and after start injection control.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT: This diagnostic chart is based on the premise that the engine is cranked normally. If the engine is not cranked, proceed to the Diagnosis By
Symptom.
