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Home >> Lexus >> 1993 >> SC 300 Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Testing >> Ecu Power Source Circuit >> ECU-IG Fuse Check
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ECU-IG Fuse Check

Remove ECU-IG fuse from junction block No. 1. Check fuse for continuity. If fuse is okay, go to VOLTAGE CHECK. If fuse is blown, check for a short circuit in all wiring harnesses and components connected to ECU-IG fuse.