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Home >> Jeep >> 2007 >> Commander Overland, 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Ignition System >> Ignition System - Electrical Diagnostics >> Ignition Systems - Electrical Diagnostics >> DTC Troubleshooting >> B2185-Ignition Unlock Run/Start Control Circuit High >> Possible Causes
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Possible Causes

Possible Causes 
(F1) FUSED IGNITION SWITCH OUTPUT (RUN START) CIRCUIT OPEN
(F1) FUSED IGNITION SWITCH OUTPUT (RUN START) CIRCUIT SHORTED TO VOLTAGE
SHIFTER LEVER ASSEMBLY (3.7L ONLY)
POWERTRAIN CONTROL MODULE (EXCEPT 3.7L)
FRONT CONTROL MODULE

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 the PCM (except 3.7L).