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Home >> Mazda >> 2007 >> B3000 Base, Automatic >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Troubleshooting (Power Systems) >> Pinpoint Test 3: DTC B1555 - Ignition Run Circuit Failure Or No Power In Run >> Normal Operation
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Normal Operation

The ignition switch RUN circuit provides fused battery voltage along circuits (W/O), (BR/Y) and (V/G) to the smart junction box (SJB) when the key is in the RUN position.