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Home >> Jeep >> 2009 >> Commander Limited, 4.7 P, RWD >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> B2184-Ignition Unlock Run/Start Control Circuit Low >> Theory Of Operation
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Theory Of Operation

The (F942) Fused Ignition Switch Output circuit supplies the FCM with battery power. The FCM processes the input and sends it out as the (F1) Fused Ignition Switch Output circuit to the Shift Lever assembly (3.7L or 6.1L) or the PCM (except 3.7L or 6.1L).