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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Memory Modules >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> B2113-5 Volt Supply Circuit High >> Possible Causes
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Possible Causes

Possible Causes 
(F891) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(F891) 5 VOLT SUPPLY CIRCUIT OPEN
(F891) 5 VOLT SUPPLY CIRCUIT SHORTED TO (C18) A/C PRESSURE SIGNAL CIRCUIT
(C918) FCM SENSOR RETURN CIRCUIT OPEN
A/C PRESSURE TRANSDUCER
INTEGRATED POWER MODULE (IPM)
FRONT CONTROL MODULE (FCM)