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Home >> Toyota >> 1999 >> 4Runner Base, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 4-Cylinder >> Computerized Engine Controls >> Engine Control Module >> Power & Ground Circuits
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Power & Ground Circuits

For testing of Engine Control Module (ECM) power and ground circuits, see PIN VOLTAGE CHARTS article. See ECM LOCATION  table for identifying ECM mounting locations.

ECM LOCATION

Model (1) Location
Camry & Camry Solara Behind Glove Box
Celica Below Passenger's Side Of Instrument Panel, Underneath Carpet Near Center Console
Corolla Behind Stereo On Instrument Panel, Just In Front Of Center Console
RAV4 Behind Instrument Panel, Near Front Of Center Console
Tacoma & 4Runner Behind Glove Box
(1) For illustration of ECM location, see THEORY & OPERATION article.