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Home >> Lexus >> 1998 >> ES 300 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft System >> System Tests >> Test 2: Ecu Power Source Circuit >> Circuit Fuse

Circuit Fuse

Turn ignition switch to OFF position. Ensure DOME and DOOR fuses are okay. If fuses are okay, go to POWER SOURCE CIRCUIT. Replace fuse(s) if needed. If fuse(s) fails again, check for short in circuits between fuse(s) and appropriate ECU connector. See Figure. Repair short in harness or connectors as necessary. See WIRING DIAGRAMS .