FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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ECU Power Source Circuit

ECU POWER SOURCE CIRCUIT

CIRCUIT DESCRIPTION
The ECU power source also supplies power to the CPU and sensors, etc. Power is supplied to the ECU even when the ignition switch is off.





DIAGNOSTIC CHART





WIRING DIAGRAM








WIRING ROUTING

Step 1:




Step 2:




Step 3:





INSPECTION PROCEDURE