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Home >> Jeep >> 2010 >> Commander Limited, 4WD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> B2112-5 Volt Supply Circuit Low >> Possible Causes

Possible Causes

Possible Causes 
(F891) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(F891) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (C918) FCM SENSOR RETURN CIRCUIT
A/C PRESSURE TRANSDUCER
FRONT CONTROL MODULE (FCM)
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